Screen turns on frequently, what program is doing that? - Android Q&A, Help & Troubleshooting

Every couple of minutes, sometimes sooner, my screen will turn on. It is sitting on a table untouched. I know that that can be done programmatically. I don't think it's a touchscreen problem of spurious ghost presses, this never happens when I am using the touchscreen. I would like to find out what is causing it. Are there any tools for logging what program made the screen-ON request?
Thanks in advance.

@Gorilla Daddy
Android logs all - unless this got disabled - what happens - keyword: LOGCAT. You can look inside this protocol by means of ADB
Examples:
Code:
adb devices
adb logcat
2nd command will generate real-time output in command window. It can be stopped with CTRL+C
Code:
adb devices
adb logcat -d > C:\logcat.txt
2nd command will extract the logcat information from the connected device and redirects the output to a file on the PC.
The option –d will take care that the output will stop when all output is flushed.

Related

[APP] CommandCenter the power of shell without having to use the termina

Have you ever dreamed of an app to execute your favorite shell commands, whether it is for collection dmesg/logcat/dumpsys or set kernel parameters.
Well here comes CommandCenter, a generic app for grouping all your favorite commands.
CommandCenter is free with ads and can be downloaded from the Android Markethttps://market.android.com/search?q=com.asksven.commandcenter(IT TAKES SOME TIME TO UPDATE CUZ ITS JUST PUBLISHED
It is also open source
If you are a kernel developer you may want to provide a tool for your users to run certain commands without havint to maintain an app for that; if yes just submit a Command Set and have your users download it.
If you are a poweruser there are commands that you use all the time, wither from adb shell or in the terminal. Make one or multiple Command Set and enjoy the comfort of an Android app and the power of your favorite commands.
http://market.android.com/publish/i...0_ndAPFoAzfqVabGrGq2vHV4L2LRT4mKNjfMwlEo5.png
How it works
The command sets are stored of the sdcard in the app's private folder /sdcard/Android/data/com.asksven.commandcenter/files in the form of json files. On load the files are parsed and each file (Command Set) shown as a tab.
A single click on a Command displays its details, a long click pops up a dialog from where you can run the command (this is configurable in the preferences).
A command has two parts:
- the command to be executed itself: it may contain a variable and in that case a popup will ask for the value to be used
- an optional command to retrieve a status: if a status can be read it will be displayed
CommandCenter comes with two pre-configured Command Sets:
- general commands for logging / diagnosis
- a few command for Fracisco Franco's awsome GN kernel
Caution
Always check the command's before running them. CommandCenter support 'su' command and you should know what you do as those could harm your phone. I will not take any responsibility for any dammage caused by command run using CommandCenter
RELEASE NOTES:
v0.7.2 2012-02-12
#2: dumpsys missing su, and logcat files have zero-length
#3: A few issues with backward compat to Android 2.1/2.2 fixed
v0.7.1 2012-02-11
#1: fixed Android 2.1 compatibility issue
v0.7 2012-02-11 Initial release
ALL CREDITS TO chamonix FOR THE GIFT
Wrong section bro..!
Themes and Apps!
Sent from my iPad 3 using XDA App
does it even matter if it solves the purpose??
it is not about what matters and what not!it is all about being sorted and arranged.
I think this thread should be deleted, it's not even related to the phone!
Greets!

[Q] Hardware Wifi Failure?

Hello, I was given a Gtablet by a friend. Everything is in proper working order except for the wifi. The wifi will endlessly scan, never pulling up any SSIDs. Here's what I've done to troubleshoot:
Ascertained flight mode was off (it was)
Enabled wifi through the developer options (Did nothing)
Manually enter SSID/Security information (Claims that SSID is not in range)
Reloaded the OS (He had VEGAn Tab on there. I reloaded the 5.1 Beta. I don't know what version he had on there, oops.)
After a clean install I have the exact same issue, which leads me to believe it is a hardware issue rather than a software issue. Is this common? Am I forgetting something? Would loading an entirely different ROM be of any use or do they also use the same driver?
My apologies if this has been answered previously, but in all my searching I can only find people who have this problem temporarily; a reboot fixes it for them. I haven't been able to find someone who has had this as a persistent issue.
JungleWallace said:
Hello, I was given a Gtablet by a friend. Everything is in proper working order except for the wifi. The wifi will endlessly scan, never pulling up any SSIDs.
Click to expand...
Click to collapse
I'll have to look at some logs to ascertain what your WiFi problem is.
Run the commands in this post (after rebooting the tablet) and then post the text files that're created.
rajeevvp said:
I'll have to look at some logs to ascertain what your WiFi problem is.
Click to expand...
Click to collapse
Thanks, see attached are the logs as per request. As a side note, now that I have the terminal emulator on there I tried a few commands I dug up on the internet after I looked over the logs.
Code:
$ su
# ifconfig tiwlan0 up
# ifconfig eth0 up
Both gave an error message
Code:
error: SIOCGIFFLAGS (No such device)
Also
Code:
# svc wifi enable
did not solve my issues. Oh well.
FYI:
JungleWallace said:
...I tried a few commands I dug up on the internet after I looked over the logs.
Code:
$ su
# ifconfig tiwlan0 up
# ifconfig eth0 up
Both gave an error message
Code:
error: SIOCGIFFLAGS (No such device)
Click to expand...
Click to collapse
The wireless LAN interface name on the gTab is wlan0. Hence your error messages: "No such device" for the ifnames tiwlan0 and eth0. (The latter would work for the ethernet I/F on the dock--if you had one connected.)
Also
Code:
# svc wifi enable
did not solve my issues. Oh well.
Click to expand...
Click to collapse
1. You have to look at the Android system logs (using logcat) to see the result of that svc command.
2. Your Android logs indicate that your WiFi interface is a) disabled at startup and b) then not enabled thereafter:
Code:
01-07 23:21:10.429 V/ConnectivityService( 990): Starting Wifi Service.
01-07 23:21:10.429 I/WifiService( 990): WifiService starting up with Wi-Fi [B]disabled[/B]
Suggestions:
Since this now looks like a ROM problem (ie. not HW):
1. See this thread. Run the script to disable Airplane Mode which might be causing your problem. If that doesn't work, try step 2:
2. Boot into CWM and then a) Format /cache and b) Repartition the Internal SD card (take the external one out first).
You'll lose all your current apps and data with this step, essentially reverting to a "fresh" install of your ROM.
Re-setup WiFi, time & date and other things again.
If step 2. doesn't work, report back next year, and I'll give you more commands to run then.
rajeevvp said:
If step 2. doesn't work, report back next year, and I'll give you more commands to run then.
Click to expand...
Click to collapse
Negative. Ran the airplane fix script, nothing. Reset cache/re-partitioned, still nothing. It's still endlessly scanning/shutting off/scanning.
JungleWallace said:
Negative. Ran the airplane fix script, nothing. Reset cache/re-partitioned, still nothing.
Click to expand...
Click to collapse
OK. Not one of the common simple problems, then.
It's still endlessly scanning/shutting off/scanning.
Click to expand...
Click to collapse
This is puzzling because from your last logs, it doesn't look like the wlan kernel driver was even loaded, so no AP scanning should be possible. A little background will clarify what I mean.
On all the 2.6.32.x kernels for the gTablet, the wlan driver is not compiled into the kernel. Instead, it is built as a separate kernel module which is loaded and unloaded as needed by Android (from the files in /system/lib/hw/wlan/). When the wlan driver is loaded both the kernel (dmesg) and Android (logcat) will show some characteristic messages and until the driver is inserted into the kernel no AP scanning, or other wireless functions, should be possible. And, no wlan driver-related messages in your logs tells me that the driver was likely not loaded. (Also, only after the wlan driver is loaded does it check and initialize the wireless HW. So, only after its been loaded, strictly speaking, can we rule out a HW problem.)
Sometimes the Android logs are not complete, so I want to you setup ADB on your PC, enable USB debugging on the gTablet (Setting > Applications > Development) and collect the Android logs like this from now on:
1. Power off gTab; attach the USB cable to it.
2. Open a CMD.exe window on the PC, then run this command (and keep the window minimized):
Code:
C:\> [B]adb logcat -v time > logcat.txt[/B]
After all the tests/commands have been done, restore this window and press Ctrl-C to kill ADB and terminate Android log collection.
3. Power on the gTablet. The ADB command will wait for the gTablet and keep collecting logs on the PC.
Post also the output of these commands:
Code:
C:\> [B]adb shell dmesg > dmesg.txt[/B]
C:\> [B]adb shell lsmod > lsmod.txt[/B]
C:\> [B]adb shell "cd /; find system -type f -print0 | xargs -0 sha1sum" > sha1sum.txt[/B]
Is this the ROM you currently have?
Have you applied the VEGAn 1.00 beta 5.1.1 supplement also?
rajeevvp said:
OK. Not one of the common simple problems, then.
.........
Is this the ROM you currently have?
Have you applied the VEGAn 1.00 beta 5.1.1 supplement also?
Click to expand...
Click to collapse
That was the current ROM I was using. I had not applied the supplement yet, but now I have. Still the same issue. Here are the logs.
JungleWallace said:
That was the current ROM I was using. I had not applied the supplement yet, but now I have. Still the same issue. Here are the logs.
Click to expand...
Click to collapse
In this one I can see the kernel WiFi driver being loaded, and the driver is not reporting any HW chip, SDIO bus, or other errors:
Code:
<4>[ 23.485281] sdio_reset_comm():
<4>[ 23.503617] DHD: dongle ram size is set to 294912(orig 294912)
<4>[ 23.676913] Firmware version = wl0: May 17 2010 22:38:50 version 4.218.223.1
<4>[ 23.887647] wlan0: Broadcom Dongle Host Driver mac=e0:2a:82:08:3e:81
<4>[ 23.894047] Enter wl_control_wl_start
<4>[ 23.897864] Exited wl_control_wl_start
<4>[ 23.907103]
<4>[ 23.907109] Dongle Host Driver, version 4.218.223.1
As far as the kernel driver is concrned, everything looks OK, but the Android logs still don't show any SSID associations.
What're the exact outputs of these commands? (You can post a screenshot. Mask the psk= value from the 1st output, if present)
Code:
C:\> [B]adb shell "fgrep -v '#' /data/misc/wifi/wpa_supplicant.conf | tr -s '\n'"[/B]
ctrl_interface=wlan0
update_config=1
...
C:\> [B]adb shell wpa_cli -i wlan0 driver rssi[/B]
...
C:\> [B]adb shell wpa_cli -i wlan0 driver linkspeed[/B]
LinkSpeed [I]nn[/I]
C:\> [B]adb shell wpa_cli -i wlan0 scan[/B]
OK
C:\> [B]adb shell wpa_cli -i wlan0 scan_results[/B]
bssid / frequency / signal level / flags / ssid
aa:bb:cc:dd:ee:ff 2452 185 [WPA2-PSK-CCMP] [I]YourSSID[/I]
Collect also the dmesg and logcat outputs as before.
[/FONT]
rajeevvp said:
What're the exact outputs of these commands? (You can post a screenshot. Mask the psk= value from the 1st output, if present) [...] Collect also the dmesg and logcat outputs as before.
Click to expand...
Click to collapse
See attached. Ignore my syntax errors that I underlined. I was typing wlan instead of wlan0.
JungleWallace said:
Ignore my syntax errors that I underlined. I was typing wlan instead of wlan0.
Click to expand...
Click to collapse
Those are OK since you've corrected them. But, these commands you'll have to redo:
1. In the first command (fgrep ... | tr), you've typed a '/' (forward slash) instead of what I've given in the example, which is a '\' (back-slash) character.
The correct character will remove all those blank lines. But, this is a minor typo compared to:
2. The last 2 commands (wpa_cli scan* ...), which you'll have to redo. This time without the extraneous driver argument (again, see the example)--which turns it into a completely different (and non-existent) command. This is why the output doesn't look like what I've shown.
Instead of typing the commands in manually, select and copy the command lines from the browser and paste them into the shell window.
You might also want to increase the no. of columns that CMD.exe displays: Right-click on the title-bar; choose Properties; select Layout; increase the no. of Columns to, let's say, 150.
3. That dmesg.txt file is not very useful because you've not rebooted the tablet before issuing that command.
The kernel has a fixed-size message buffer, so all the HW initialization messages printed only at system boot will be overwritten by later, and irrelevent, messages as time passes. From the timestamps, it looks like your tablet's been on for a couple of weeks, at least--I can't see any of the earlier boot-up messages.

How to create a shelf icon that executes a shell programm call?

Hey everyone,
I am looking for a way to activate sleep mode of my chromebook manually in order to save battery without having to log out or power off all the time (it's connected to an external display, so closing the lid doesn't trigger it).
So far I found out that calling "powerd_dbus_suspend" from the shell does the trick, but as you can imagine, using the shell and actually typing the command every time is not really a solution.
Is there a way to create a chrome os app that executes this program call, so I can put it in my shelf and just click it to activate sleep?
I'm not really good at .json, maybe there's a way? Or any other suggestions?
Thanks alot!
Markus
I would like to know it too. Anyone?
Sneets said:
Hey everyone,
I am looking for a way to activate sleep mode of my chromebook manually in order to save battery without having to log out or power off all the time (it's connected to an external display, so closing the lid doesn't trigger it).
So far I found out that calling "powerd_dbus_suspend" from the shell does the trick, but as you can imagine, using the shell and actually typing the command every time is not really a solution.
Is there a way to create a chrome os app that executes this program call, so I can put it in my shelf and just click it to activate sleep?
I'm not really good at .json, maybe there's a way? Or any other suggestions?
Thanks alot!
Markus
Click to expand...
Click to collapse
Run a tiny web server like lighttpd in the shell on a weird port, restrict to localhost. Set up index.php to run system (whatever);
Then bookmark the 127.0.0.1: xxxx URL
Which system call invokes power_dbus_suspend?
Thanks Parrotgeek1. Working off your excellent suggestion I installed a lightweight local server on ChromeOS (Web Server for Chrome with the 200 OK! icon) and built a small framework app that is served from local storage. I'm all set up to call chrome.app.??? from my JavaScript. Which API provides the power_dbus_suspend capability? I looked through the Power and System APIs and I don't see anything. - Thanks!
Sneets said:
Hey everyone,
I am looking for a way to activate sleep mode of my chromebook manually in order to save battery without having to log out or power off all the time (it's connected to an external display, so closing the lid doesn't trigger it).
So far I found out that calling "powerd_dbus_suspend" from the shell does the trick, but as you can imagine, using the shell and actually typing the command every time is not really a solution.
Is there a way to create a chrome os app that executes this program call, so I can put it in my shelf and just click it to activate sleep?
I'm not really good at .json, maybe there's a way? Or any other suggestions?
Thanks alot!
Markus
Click to expand...
Click to collapse
Have you tried this simple extension? Keep Awake
https://chrome.google.com/webstore/...lb?utm_source=chrome-app-launcher-info-dialog
What I do is have the shell tab pinned, and press [up arrow] for the command then hit [enter]. Probably not ideal if you use the shell a lot as you have to step through recently used commands.
Re: Pkt_Lnt's post
Thanks Pkt_Lnt. That app only deals with disabling the normal sleep behavior, not causing it, and in particular not causing it when an external monitor is connected. I'm looking for something like Sneets has requested, to invoke a powerd_dbus_suspend command that will force the system to sleep (and turn off an external monitor). Per Parrotgeek1's comment, I've got a little app now sitting on the shelf that is all set to call some system command to invoke powerd_dbus_suspend, only I'm looking for what command to call, from JavaScript.
I managed to find a way to do something similar with the Secure Shell app. During the process of figuring it out, I also found that I was able to create a homescreen shortcut on my Android tablet which when tapped sends a shell command to the Chromebook.
This method might be overkill somewhat, but, anyway, what I did was as follows:
Installed Secure Shell extension; setup sshd on the Chromebook (by making a symlink in /etc/init/ pointing to /usr/share/chromeos-ssh-config/init/openssh-server-conf); rebooted; added public key from ConnectBot (Android app) to ~/.ssh/authorized_keys in order to test connection; setup Android homescreen shortcut to send shell command; created profile in Secure Shell app on Chromebook to connect to [email protected]/my local IP address; generated keys on Chromebook (in ~/.ssh); added generated public key to ~/.ssh/authorized_keys; imported newly-generated private/public key pair within Secure Shell app (one by one); created bookmark link to [email protected] profile in shelf, and, finally, added required command to profile in Secure Shell.
It works well! It looks like any command can be added to the 'Arguments' field in Secure Shell, with the syntax:
Code:
-- thecommand
Although I guess commands that need sudo would require a connection to [email protected], instead of chronos. (-t argument lets you use sudo, but then sending a line break/ENTER seems to be needed)
The window opened with the click does hang around - I haven't figured out if it's possible to avoid this - but it does at least seem to persistently remember the size and position to which it's set.
I posted up some further details at http://nolirium.blogspot.com/shell-command-shelf-shortcut-chromeos.html
Impressive! But a bit more than I'm looking to do
@Nolirum - I read your blogspot doc and your procedure's pretty impressive. Frankly it's a little beyond me and beyond what I'm looking for. If you ever run across a way to invoke powerd_dbus_suspend a little more directly please post here as well. You clearly have a strong grasp of the issues!
Nolirum said:
I managed to find a way to do something similar with the Secure Shell app. During the process of figuring it out, I also found that I was able to create a homescreen shortcut on my Android tablet which when tapped sends a shell command to the Chromebook.
This method might be overkill somewhat, but, anyway, what I did was as follows:
Installed Secure Shell extension; setup sshd on the Chromebook (by making a symlink in /etc/init/ pointing to /usr/share/chromeos-ssh-config/init/openssh-server-conf); rebooted; added public key from ConnectBot (Android app) to ~/.ssh/authorized_keys in order to test connection; setup Android homescreen shortcut to send shell command; created profile in Secure Shell app on Chromebook to connect to [email protected]/my local IP address; generated keys on Chromebook (in ~/.ssh); added generated public key to ~/.ssh/authorized_keys; imported newly-generated private/public key pair within Secure Shell app (one by one); created bookmark link to [email protected] profile in shelf, and, finally, added required command to profile in Secure Shell.
It works well! It looks like any command can be added to the 'Arguments' field in Secure Shell, with the syntax:
Code:
-- thecommand
Although I guess commands that need sudo would require a connection to [email protected], instead of chronos. (-t argument lets you use sudo, but then sending a line break/ENTER seems to be needed)
The window opened with the click does hang around - I haven't figured out if it's possible to avoid this - but it does at least seem to persistently remember the size and position to which it's set.
Click to expand...
Click to collapse
This really is impressive! Thanks for the extremely detailed explanation.
I was able to follow along completely and get the SSH argument "powerd_dbus_suspend" working.
However, I got to thinking. I was wondering if this could be extended to use an alias stored in ~/.bashrc?
After doing some research of my own and using various parameters and arguments, I was unsuccessful.
The goal is to have a linux app (through crouton) be run using xiwi with just a single bookmark by utilizing an alias.
Any thoughts?
UPDATE:
Of course just a few moments later I figured this out! Rather than dealing with an alias stored in ~/.bashrc and ensuring ssh had access, typing the entire alias command as an argument worked. Now I can run Steam directly from a shelf bookmark. All it took was replacing "powerd_dbus_suspend" with "-- sudo enter-chroot xiwi steam" in the argument.
Thanks again!
DandyRandyMarsh said:
This really is impressive! Thanks for the extremely detailed explanation.
I was able to follow along completely and get the SSH argument "powerd_dbus_suspend" working.
Click to expand...
Click to collapse
No problem! I think it's perhaps overly detailed if anything. Might be easier to follow if I cut it down a bit.
DandyRandyMarsh said:
Now I can run Steam directly from a shelf bookmark. All it took was replacing "powerd_dbus_suspend" with "-- sudo enter-chroot xiwi steam" in the argument.
Click to expand...
Click to collapse
Nice!
Adding crouton single app shortcuts is a cool idea which I hadn't considered. Does it work OK for you with sudo in the command, even straight after booting up? ...You didn't have to setup sudoing without a password via sudoers.d or anything?
Inspired by your post I added xiwi to my chroot to try it out. I seem to remember experiencing quite unbearable lag and slowness when running a full desktop via xiwi in the past, but with single apps there doesn't seem to be any noticeable performance hit (this is on an armv7 Asus Flip, with the chroot on a slooow USB drive).
In order to not have to enter my sudo password, in the argument I put:
Code:
-t -- echo mypassword | sudo -S sh /media/removable/3/bin/enter-chroot xiwi firefox
Maybe I'm missing something? Is there a better way, perhaps?
Anyway, since I have rootfs verification switched off, I also tried saving a similar command to a file in /usr/bin, and putting the filename in the argument instead. This works, too, and I suppose could potentially be useful e.g. in the case of needing to run a more convoluted sequence of commands with a shortcut.
Nolirum said:
Adding crouton single app shortcuts is a cool idea which I hadn't considered. Does it work OK for you with sudo in the command, even straight after booting up? ...You didn't have to setup sudoing without a password via sudoers.d or anything?
Click to expand...
Click to collapse
I'm not entirely familiar with exactly how my process worked, but I do not have any sudo password required within shell.
Here's the list of steps I followed allowing me to use sudo commands in the SSH Arguments box.
As a side note, this is the crouton installation I am running on an ASUS c302.
sudo sh ~/Downloads/crouton -r trusty -t unity,touch,xiwi,extension
Setup Bookmarks that Run Shell Commands
1. Installed Secure Shell extension
2. Open crosh with Ctrl+Atl+T
3. Enter Command: shell
4. Enter Command: sudo su -
5. Enter Command: sudo /usr/share/vboot/bin/make_dev_ssd.sh --force --remove_rootfs_verification
6. Enter Command: reboot
7. Let Chrome OS reboot
8. Open crosh with Ctrl+Atl+T
9. Enter Command: shell
10. Enter Command: sudo su -
11. Enter Command: mount –o remount rw /
12. Close current crosh window
13. Open a new crosh with Ctrl+Atl+T
14. Enter Command: shell
15. Enter Command: sudo ln -s /usr/share/chromeos-ssh-config/init/openssh-server.conf /etc/init/openssh-server.conf
16. Enter Command: sudo initctl reload-configuration
17. Enter Command: sudo initctl start openssh-server
18. Enter Command: cd ~/.ssh/
19. Enter Command: ssh-keygen
“Enter file in which…” *LEAVE BLANK*
“Enter passphrase” *LEAVE BLANK*
“Enter same passphrase” * LEAVE BLANK*​20. Enter Command: cat /home/chronos/user/.ssh/id_rsa.pub >> /home/chronos/user/.ssh/authorized_keys
21. Enter Command: cp -a /home/chronos/user/.ssh/id_rsa* /home/chronos/user/Downloads
22. Close current crosh terminal and open Secure Shell extension
23. Select [New Connection]
24. Click Import… and select “id_rsa”
25. Click Import… again and select “id_rsa.pub”
26. Enter chronos as the username and localhost as the hostname
27. Enter a shorthand name replacing the text in the top cell “[email protected]”
28. Click Enter. If prompted, enter “yes” to continue connecting
29. Bookmark the page that is open which should end in, "#profile-id:_ _ _ _"
DONE. Now time to add some commands to automate.
Open Secure Shell and select the connection created. In the arguments box, start with two dashes -- and follow it your desired shell command.
Examples:
-- sudo startunity
-- sudo startgnome
-- sudo enter-chroot xiwi steam
-- sudo enter-chroot xiwi wine microWord​
Next Steps... Getting Custom Shelf Icons
Now here I am running into some issues. Rather than have all these icons be the same, I was hoping to customize them.
Followed a strategy found on reddit, Change Shelf Icon for Website, but this only works if the site already had an "apple-touch-icon" set. Also, tried to inject the entire code myself which I couldn't get to work. Unfortunately, I think that since this bookmark is created from a Secure Shell, there are some issues.
I have already tried adding in code for this into the site, but it is having no effect. If someone could make this work then we're really looking good here.
DandyRandyMarsh said:
I'm not entirely familiar with exactly how my process worked, but I do not have any sudo password required within shell.
Click to expand...
Click to collapse
Oh, I see what you mean. You are saying that you can sudo in the shell generally, without being prompted for a password, right?
Was that the default setup on your CB (after switching to Dev mode)? Or did you have to configure it manually for passwordless sudoing...
DandyRandyMarsh said:
Here's the list of steps I followed allowing me to use sudo commands in the SSH Arguments box.
Click to expand...
Click to collapse
Nice work summarizing the steps. :highfive: It's probably easier to follow, listed out like that. One slight addendum, perhaps - at step 29, it might be good to clarify the "add to shelf" procedure. Especially because of the following...
DandyRandyMarsh said:
Next Steps... Getting Custom Shelf Icon
Now here I am running into some issues. Rather than have all these icons be the same, I was hoping to customize them.
Click to expand...
Click to collapse
Happily it turns out that, when you add shortcuts to the shelf on Chrome OS like this, a minimal app is created for each one, with its own manifest.json, and icon.pngs. Our shell shortcuts were getting created with blank pngs by default (the black box with P in the center).
So, all we need to do, is get some icons, find the right folder for our shelf shortcut apps, then copy our new icons into them!
For instance, here's how I made a nice shiny icon for my single app shelf shortcut to Firefox.
Prepared icons:
Created a temporary folder in ~/Downloads to store downloaded icons.
Prepared a set of icons in ~/Downloads/firefox. (I downloaded mine from findicons.com).
Six sizes are required - from 32px to 256. To avoid any manifest editing, saved them as *size*.png
e.g. 32.png; 48.png; 64.png; 96.png; 128.png; 256.png
Located folder to copy icons to:
It is easiest to do this directly after clicking "add to shelf"
EITHER:
To change dir into the most recently modified extension icon subfolder automatically, the following one-liner worked for me*.
Code:
shell
cd ~/Extensions/&&cd $(ls -v1td */ | head -1)/*/icons&&ls
A list of blank icons (*.png) should be visible. If so, the new icons can simply be copied over these, e.g..
Code:
sudo cp ~/Downloads/firefox/* .
*YMMV with this particular one-liner - sometimes there's an extra 'temp' folder in ~/Extensions, which stops it working as expected. If you get an error after running the command, simply use the slightly more manual method to locate the folder, as detailed below.
OR:
(slightly more manual method).
Code:
shell
ls -ltr ~/Extensions
Checked the date/times - the most recently added folder is at the bottom. Then,
Code:
cd themostrecentlyaddedfolder
(or, the folder modified at the date/time that the shortcut was "added to shelf"). Then,
Code:
cd */icons
ls
sudo cp ~/Downloads/firefox/* .
I then repeated the above with a new SSH argument and a set of Ubuntu icons, for a custom startxfce4 shortcut, too.
Then just did sudo restart ui, and enjoyed the shiny new shelf icons!
I am hopeful that these changes will get picked up by CrOS's sync, thus getting backed-up and restored automatically. At this point I am not sure if that will be the case, but I don't see why it wouldn't.
Another way?
Another way to approach this, since you're modifying system stuff anyway, might be to edit crosh at /usr/bin/crosh. It's a regular ol' dash/bash shell program, and you can create a shortcut to it on the shelf by opening crosh (ctrl-alt-T), then right click the top right of the browser and select More Tools --> Add to shelf...
Clicking the newly-created link (which looks like an "N") will launch /usr/bin/crosh in a tab. Changing the default behavior of /usr/bin/crosh could accomplish your goal to do whatever you want. With some experimenting, you might even be able to pass arguments to make it do different things depending on how it's opened (via ALT-CTRL-T vs from the shelf-- dunno if it can read the url used to call crosh), but at the very least you could do something like have it run whatever you want it to run if a second modifier key is held down (or if it isn't...), otherwise return to normal operation. A menu w/1 sec timeout could do this as well, ie--
Doing [THE THING YOU WANT] in 2 seconds (press SPACE for crosh)... /
Note there's no proof-of-concept here. Just throwing it out as an idea that I'm pretty sure would work... Someone might even create a neat extension that allows crosh to use scripts/plugins to execute different system operations beyond the stock ones that are built-in via single-clicks... If it worked, it might be a little simplier than via the SSH extension and you wouldn't have to run any extra daemons.
ft
This is probably harder, but a third way, which probably is the "right" way is to see how the crosh extension works and learn about opening the hterm.Terminal instance chrome.terminalprivate object directly, sending it output, and closing it in the same way crosh does it. There's a file in the crosh extension at js/crosh.js that shows the basics of how it's done:
var terminal = new hterm.Terminal(profileName);
And then you can do stuff with it. You could then create an extension that could handle multiple shelf-icons (say by appending ?COMMAND=ls to the URL to do different shell commands(. The security implications for this would probably be huge obviously.
Update: More on embedding hterm is here.
Nolirum said:
I managed to find a way to do something similar with the Secure Shell app. During the process of figuring it out, I also found that I was able to create a homescreen shortcut on my Android tablet which when tapped sends a shell command to the Chromebook.
I posted up some further details at http://nolirium.blogspot.com/shell-command-shelf-shortcut-chromeos.html
Click to expand...
Click to collapse
Nice post - Some good food for thought, changing up the contents of crosh etc directly is an interesting idea.
fattire said:
Another way to approach this, since you're modifying system stuff anyway, might be to edit crosh at /usr/bin/crosh. It's a regular ol' dash/bash shell program, and you can create a shortcut to it on the shelf by opening crosh (ctrl-alt-T), then right click the top right of the browser and select More Tools --> Add to shelf...
Click to expand...
Click to collapse
Interesting! ....Aaaaand, now I've broken crosh. lol. Lucky I had my SSH shortcut setup... (actually, we can still get into the VTs with CtrlAltF2 etc anyway).
Some good potential for experimentation with this, definitely.
fattire said:
This is probably harder, but a third way, which probably is the "right" way is to see how the crosh extension works and learn about opening the hterm.Terminal instance chrome.terminalprivate object directly, sending it output, and closing it in the same way crosh does it. There's a file in the crosh extension at js/crosh.js that shows the basics of how it's done:
Click to expand...
Click to collapse
Again, very interesting. Now you come to mention it, an approach such as this does seem like it might be do-able without too much messing around (maybe)...
Any possible method we can get e.g. an extension to 'talk' to the shell is worth looking into I think; as you say, if we can cut out the middleman (ssh) and maybe do it more elegantly, that might be pretty useful indeed.

Random Restarts; How Do I Debug This?

I used CatLog in Debug mode to no avail. I can't figure out what's causing the Random Restarts problem. I've even reflashed my whole system.
The problem with CatLog is that it needs to write to disk to record the log. When I set it to write every 50 or 20 lines, I successfully reproduced a random restart while it's logging, but when I look at the log, it only recorded the 50 or 20 lines PRIOR to the random restart. I need at least the last 3 lines.
When I set it to record every 1 line (this should work in theory), it goes into a "log loop" logging it's own log as a log. So in other words, it logs that it's logging every time it logs a line. This makes the log file useless as I need to go on living for hours until I successfully produce the next random restart by accident, which I can't do as this will fill up my whole disk and may cause me a bigger problem in a matter of an hour or two, I assume.
Instead of catlog use logcat through terminal.
Code:
su
logcat > "your sdcard path here"/log.txt
Or
logcat | grep E/ > "your sdcard path here"/log.txt
Then you have either a full log or an error log. Or for debug only replace E/ with D/
DestructoS said:
Instead of catlog use logcat through terminal.
Code:
su
logcat > "your sdcard path here"/log.txt
Or
logcat | grep E/ > "your sdcard path here"/log.txt
Then you have either a full log or an error log. Or for debug only replace E/ with D/
Click to expand...
Click to collapse
How will that help? And when do I do that? Before the incident so it's logged, or afterwards so it's written to this specified file?
Sorry logcat before the incident as logcat doesn't stop until something explictly stops it and as you are piping it to file as it goes you will get a log until the last entry before reboot. It won't solve the problem but at least you will have a log.
DestructoS said:
Sorry logcat before the incident as logcat doesn't stop until something explictly stops it and as you are piping it to file as it goes you will get a log until the last entry before reboot. It won't solve the problem but at least you will have a log.
Click to expand...
Click to collapse
Thanks. Exactly what I need. I hope it works.

[Guide] Linux on Wear OS!

THIS IS ONLY TESTED IN WEAR OS 3 ON A GALAXY WATCH 4
THOUGH THIS SHOULD WORK ON ALL WATCHES AND OLDER VERSIONS OF WEAR OS
Requirements:
ADB installed on your computer
Have your wear OS device connected to the same network as you computer
A bit of patience, this works in a very weird way!
Downloading apks and installing them
Firstly enable adb and adb debugging over WiFi on your wear OS device
Then download the latest apks:
Termux
MultiVnc If you want a graphical environment on Linux
When you have the apks run these commands:
Code:
adb connect IP_OF_YOUR_WEAR_OS_DEVICE
You might be able to see your ip under the button for enabling adb debugging over wifi
Then run these commands in the downloads folder
Code:
adb -s " IP_OF_YOUR_WEAR_OS_DEVICE" install NAME_OF_THE_DOWNLOADED_TERMUX_APK_FILE
and
Code:
adb -s " IP_OF_YOUR_WEAR_OS_DEVICE" install NAME_OF_THE_DOWNLOADED_MULTI-VNC_APK_FILE
BE AWARE THAT YOU MIGHT HAVE TO RESTART THE ADB CONNECTION, SOMETIMES IT MAY FREEZE.
to do that run
Code:
adb disconnect
then
Code:
adb connect IP_OF_YOUR_WEAR_OS_DEVICE
Installing Linux in Termux
Stay awake sleepyhead!
To make everything easier enable the option in Termux to keep your watch awake, this will save you from so much trouble.
First open up Termux, then long press the black background.
Then press the three dots and choose the option "More...".
Scroll down until you see the option "Keep screen on", turn on that.
Keyboard?
I've discovered that there's a problem with Wear OS keyboards, for some reason they might not interact properly with certain android applications.
So open up Termux in your Wear OS device and see if you can write anything in Termux.
If that works, see if there's any enter button on your keyboard and see if it works.
If Termux gave any response to what you entered then skip this part and head straight for "The Linux multiverse!"
If the enter button doesn't work then you gotta install an android keyboard.
The best keyboard I've found that also works on round Wear OS devices is "Unexpected keyboard"
Download the keyboard and run:
Code:
adb -s " IP_OF_YOUR_WEAR_OS_DEVICE" install NAME_OF_THE_DOWNLOADED_KEYBOARD_APK_FILE
When the keyboard is installed change you default keyboard into the previously installed keyboard.
The Linux multiverse!
On your ANDROID PHONE install Andronix.
In there you will have a lot of options for installing Linux on Termux. You can choose whatever you want!
When you've chosen what you want, then Andronix will copy a command to your phones clipboard.
Oh no!
This is where you might only have a few options!
The problems is that you have to get the command from your phone to your Wear OS device, though your Wear OS device might not even let you copy and paste!
Though there is a way to bypass this, ANDROID APPS! The easiest way is to install messenger lite(not messenger for Wear OS).
First download Messenger lite. (source for the messenger download link)
Then In the downloads folder run:
Code:
adb -s " IP_OF_YOUR_WEAR_OS_DEVICE" install NAME_OF_THE_DOWNLOADED_MESSENGER_APK_FILE
Log into messenger on your phone and your Wear OS device.
On your phone send the command Andronix gave you, to yourself in messenger.
Then open up messenger on your Wear OS device and long press the command and select copy!
Now the biggest hassle is gone!
The long, really long awakening
Now that you've copied the command, enter Termux. Then long press the black background and press paste.
NOW DON'T TOUCH ANYTHING, so that you don't accidentally change anything in the command.
From your computer run:
Code:
adb shell input keyevent 66
Try to remember this command, or put it somewhere easy to copy. You'll need it pretty often. (this command serves as an enter button)
The installation of Linux will now begin, there will be some Y/N questions, just choose the default options by running:
Code:
adb shell input keyevent 66
After a while you might get questions about region, keyboard and such.
use
Code:
adb shell input keyevent 66
to scroll down when it says [MORE]
then use
Code:
adb shell input text "NUMBER/WORD"
(don't remove the parentheses)
then again use
Code:
adb shell input keyevent 66
as an enter button
It might also ask you for a vnc password, choose a small and easy password.
FINALLY LINUX!
You should now have Linux installed on your Wear Os device. Go do whatever you want with it.
Just remember that your Wear OS device uses arm, so if you wanna use x86 applications, then you gotta use Box64 if you have a 64-bit processor and Box86 if you have a 32-bit processor
Start Linux(Linux might automatically start after installation)
First run:
Code:
adb shell input text "ls"
Code:
adb shell input keyevent 66
This will run the ls command.
Look for a file closely name to start-SOME_LINUX_DISTRO.sh or start-andronix.sh
then run:
Code:
adb shell input text "./start-SOME_LINUX_DISTRO"
then
Code:
adb shell input keyevent 66
BOOM Linux is now running :3
What about GUI?
If you installed a Linux version with a graphical interface then you either gotta use a VNC to display anything on your watch
run
Code:
adb shell input text "vncserver-start"
then
Code:
adb shell input keyevent 66
then
Code:
adb shell input keyevent 66
The terminal will say " New 'remote-desktop' at :NUMBER on machine localhost "
remember that number
now exit Termux and start Mutli-Vnc
Scroll down to "New Connection"
in Address enter localhost
in port enter 590 and then the number. (If the number as is higher than 9, enter 59 and then the number)
Scroll down password and enter in the vnc password you chose earlier.
Then the scroll all the way down and press the big green "Connect" button!
You should now some something, maybe not a lot, but something"
You can manually set the resolution if you want, so that you're able to utilize the screen better, go here for a guide on that.
External GUI
If you actually wanna use the Linux installation, then you'll have to use an external device to view the desktop.
You can follow this guide here, as it's better at explaining then me.
You can also use this guide if you wanna use XSDL.
A tip for entering &, use the keyboard on the watch! Also the read the explanation of commands before you continue, you'll need it!
Command explanation!!
adb shell input text " " will enter any text into the connected adb device, %s is used for spaces
adb shell input keyevents will do any key event, like pressing enter, 66 is for enter
If something doesn't work, let me know. I might've missed something!

Categories

Resources