My audio randomly drops out and requires a reboot to clear. All audio is silenced. For example, pressing the volume buttons do not beep. It happens randomly, but most often after a reboot.
Tonight I was able to reproduce the problem fairly consistently so I was able to get a logcat (attached) of the issue. I was using Rockplayer v1.5.5 with hardware decoding. I don't think Rockplayer is the issue because the problem has happened with other programs, like Angry Birds.
I am not an expert but I see lines like "[FONT="]W/AudioTrack( 927): obtainBuffer timed out (is the CPU pegged?) 0x21a528 user=00033b2a," [/FONT]when the issue occurs. When everything is working normally, these entries are not there. I trimmed the log file to meet the size limitations. I have the whole file if needed. Please help!!![FONT="]
[/FONT]
Moved to general
I will try and post a logcat the next time mine does it.
I'm having the same problem. I can hear sound whenever i startup the tablet, but after a while (sometimes it can be less than 1 min sometimes after 5 hours) the sound stops and i only get static noise or no sound at all. Whenever that happens, in the android log appears the following lines repeatedly (with a frequency of 1 sec):
W/AudioTrack( ####): obtainBuffer timed out (is the CPU pegged?) 0x##### user=00######, server=00######
I've tried changing ROMs without success in solving this problem, now i'm using TNTL v4.4.0.
The bug triggers while i'm using sound (games/watching videos on youtube/playng music on winamp/ pressing the battery button on the status bar, triggering that "click" noise).
When this bug is triggered, i get FC from some apps that use sound (Youtube / Winamp / some games)...
Rebooting the tablet fixes the problem untill it triggers again
i've been using adb logcat several times with this problem and the only correlation between the logs is the line described above, i've tried searching on google, but the results i get are for cellphones or pre 2.2 devices... in one of them, they interpret it as a kernel problem (http://forum.xda-developers.com/showthread.php?p=6280968)...
Any help is appreciated.
Same thing here on one of the woot tablets running Vegan 5.1. 1. Usually happens after coming back from sleep. I asked for a replacement and the new tablet will be here tomorrow.
I really hope this is a hardware problem and not caused by a rom or app. Still interested in finding out what causes this, so I won't have this happen again with my new tab. Did anyone have this issue with the stock rom? Are these all recently bought tablets? I didn't spend enough time with stock to encounter sound problems.
I've been toying around with my tablet to see what is causing the problem, so i started by Flashing all over to stock to find out if at some point the sound problem stops... well... here are my results untill now:
Started at TNTL 4.4.0, Many apps installed and the sound problem appears constantly and is triggered easily. Before starting I backed up everything using Titanium Backup xD.
Part 1: Format + NVFlash to "belkit 1105" + Factory Reset: Problem Still Arround, took me about 3 reboots and 7 minutes to reproduce it by playing a song and randomly click on the battery/wifi/notification buttons with the sound of those buttons turned on.
Part 2: Updated to "stock 3588" (couldn't do it through OTA because it sayed that my tablet was up to date... so I downloaded the update from the NVFlash guide and installed using this guide from the internal SD. It didn't work, it took me about 5 minutes to reproduce the error, no rebooting .
Part 3: Settings > Security > Factory Reset: ... still haven't been able to reproduce the error, i've rebooted it about 7 times and listened music for 3 hours, eventually clicking on the notification/battery/wifi buttons and it seems to work fine... at least this is a checkpoint for me
It would be great if someone with the same problem could confirm that this works, i'm going to leave my tablet playing music during the night just to be sure :9.
Oh, JIC I bought my tablet on 27 Feb from J&R Electronics Inc through Amazon.
I'm having the same problem with mine in fact I have the tablet sitting next to me and the thing just went all static and freaked the cat out and woke my wife up not exactly cool when your in bed! I may have to look into exchanging or return it! I would hate to be at work or somewhere else and have it freak out like that! It's annoying!
I'm having the same problem, I lost all sound once I upgraded to Vegan Tab Ginger. Downgrading, or any changes doesn't do anything
I have a similar issue. I installed Cyanogenmod 7.0.3 and my sound mysteriously goes away. I can easily repeat it by putting the table to sleep and then waking it up. Sometimes, you can hear some static before it goes out.
I discussed this with Gojimi long time ago, but, I dont remember, I think the issue got lost with time. Still happens though
Hi guys. I'm totally new to the android/smart phone world btw. Anyways, I recently got my Samsung Galaxy S2... first thing I noticed, my touch screen wasn't working. I popped the battery in and out and then it started working as it should.
My phone was working fine this morning, then all of a sudden out of no where, the touch screen stopped working again. I've tried turning on/off the phone multiple times. I've taken out the battery and even my SIM card nothing... i'm worried.
Has this happened to anyone else? Is there a fix? Do i have to go through Samsung? I hope not. Incase anyone asks, I did not root my phone.
Any help/feedback would be appreciated.
When the touchscreen stops working... were you charging the phone at that time?
The first time i turned on my phone, was actually by accident and it was charging.
However, just earlier now, it was not. it was just sitting on my computer desk. The home button, lock button and touch capacitive buttons work.... but i can't get past the lock screen
you could try a factory reset to see if its software related, but it sounds like hardware. I would definitely Return the phone .
I guess I can't do a factory reset, since I can't get into any of the menus... man this sucks. I spent $900 *gulp*
To do a factory reset,
1. Turn the POWER OFF, pull the battery out and put it back again.
2. Simultaneously press and hold the Volume Up, Home and Power button
3. If the Samsung Symbol appears, release the Power button
4. A Boot Menu will then show, Use the volume up/down to choose wipe data/factory reset.
touch screen not needed this way.
oo that's interesting... I tried it. and it didn't get to a boot menu. maybe I was doing it wrong. I tried a few different ways, but no success. It turns out I have warranty with the store. They're going to replace it for me Thanks for the feedback guys. Awesome forums.
Something similar happened to me yesterday. When I had the in-box USB cable attached to a BoxWave VersaCharger (combined AC/DC charger), and the VersaCharger was plugged into 120V AC, the touchscreen would stop working. As soon as I unplugged the USB cable from the SGS2, or plugged the VersaCharger into a 12V DC lighter socket, the touchscreen would work fine.
I've got the same problem as the OP... I had my phone charging overnight and this morning when I first went to use the phone I could not unlock the screen. I could wake the screen via the home button, and see I had a missed call etc but it just wasn't responding to touch. BTW I can't remember if when I first tried to unlock the phone if it was charging or not but really this shouldn't matter.... oh and btw, I'm not rooted or anything either! Naturally I rebooted the phone but still the same problem....so I tried a battery pull and still the same problem. Just now I did a factory reset but the touch screen still isn't working! I guess this is a hardware problem so I'm going to get it fixed under warranty by Samsung! Gutted that I will likely be without my phone for a week or 2!
EDIT, UPDATE...
Well, I was just on my way to the repair shop Samsung warranty had told me to take it too, and I took my sim card out to put in my old Hero (the only thing I hadn't tried!) and I couldn't believe it but the touch screen started working fine again! Weird, but that is now my advice if anyone else has a problem with their touch screen not working - oh and I took the sim out whilst the phone was still turned on. Crisis averted!
UPDATE 2
Sadly this has happened about 4 times to me now and I'm just waiting for the inevitable next time. Each time doing a factory reset then taking the sim card out seems to bring the screen back to life (though last time not immediately) but I shouldn't have to put up with this. Problem is, I don't want to send off a seemingly perfectly working phone to get repaired as I fear they will struggle to notice the problem, never mind fix it! I'm hoping a new firmware comes out soon, in the hope that it may resolve my issues...
Me as well ...
I have had this happen to me twice now (Touchscreen not responding).
The first time I had just installed a game and thought it must have been related to that. Pulled the battery and no joy, left it for a while and it came back to life...
Second time I was surfing the web and it stopped responding, pulled the battery and left it for maybe a minute but no joy .... pulled the battery again and left it for probably 20min and it came back to life. When it came back up I noticed the livewallpaper had been turned off and my widgets were gone from the homescreen.
What I did notice when it wasn't working was it had "safe mode" displayed at the bottom left of the screen
Have the Same Problem
Have the same problem i Mine and was super exicedat first it worked fine and after charging the touchscreen stopped working i pulled the battery out and put it back in but no luckso im gonna return mine to the shop hope they replace it
Moral:AT FIRST SUPER EXICTED BUT NOW SUPER ANGRY
Same issue - Is there ANY way to save my data before I send it in for repair/replace?
Hi all,
As of this morning, I have exactly the same issue as the OP. Screen doesn't react to touch, with the exception of the capacitive buttons. I found a dude on YouTube that had the same issue: youtu.be/0oIdllWiV4I
The last thing I did with the phone before it started misbehaving was to answer a call. The phone was on the charger when the call came in - I can't recall whether I unplugged it before answering, or after, or at all during the call. Not sure it has any relevance anyway, only mention it because I've seen reports of people's screens no longer reacting to touch when the phone is plugged in to a charger (apparently it even states in the manual that this may happen).
Anyway, whilst all my contacts, SMS, photos etc are backed up to the cloud, the same can't be said for my app data. Before I lose hours and hours of progress in various games, or all my settings in numerous other apps, etc, can anyone think of any way to get access to the memory of the phone, bearing in mind the following:
I can't connect to Kies to pull a back-up because bluetooth is currently enabled on the phone and when one connects the USB cable, it says "Activating USB mode will deactivate Bluetooth. Continue?" but I can't click the Yes button
I can't connect in USB mass storage mode because I can't navigate to the settings menu entry to enable it
I can't turn Bluetooth off in order to get Kies working, becuase I can't get to the settings menu or pull down the notification bar to reach the power control.
I can't use Voice input to control the device (on the off chance there was a "bluetooth off" voice command) because (presumably with the most recent firmware I flashed via Kies a few weeks back) for some reason Vlingo is no longer the app on the double-home button action. Instead it calls Samsung Voice and wants to walk me through a first use tutorial, but I can't click the next/skip buttons
I installed via Android Market push the app belonging to www_remoteaccessphone_com as it promises to be able to remotely switch bluetooth off, but the website says I haven't installed the app yet, presumably because alrhough I was able to install it without touching the phone, it probably needs to be run at least once to set it up, and I obviously can't do that
I can't start Kies Air to try and get my data that way (starting it would require using the touch screen)
Kies via bluetooth isn't supported on Android
Needless to say, the data I'm trying to retrieve is on the internal memory, not the SD card. As you can see I've been trying all sorts of creative things, but I'm fairly sure I'm screwed. Any bright ideas I haven't thought of?
blaubeer said:
Hi all,
As of this morning, I have exactly the same issue as the OP. Screen doesn't react to touch, with the exception of the capacitive buttons. I found a dude on YouTube that had the same issue: youtu.be/0oIdllWiV4I
The last thing I did with the phone before it started misbehaving was to answer a call. The phone was on the charger when the call came in - I can't recall whether I unplugged it before answering, or after, or at all during the call. Not sure it has any relevance anyway, only mention it because I've seen reports of people's screens no longer reacting to touch when the phone is plugged in to a charger (apparently it even states in the manual that this may happen).
Anyway, whilst all my contacts, SMS, photos etc are backed up to the cloud, the same can't be said for my app data. Before I lose hours and hours of progress in various games, or all my settings in numerous other apps, etc, can anyone think of any way to get access to the memory of the phone, bearing in mind the following:
I can't connect to Kies to pull a back-up because bluetooth is currently enabled on the phone and when one connects the USB cable, it says "Activating USB mode will deactivate Bluetooth. Continue?" but I can't click the Yes button
I can't connect in USB mass storage mode because I can't navigate to the settings menu entry to enable it
I can't turn Bluetooth off in order to get Kies working, becuase I can't get to the settings menu or pull down the notification bar to reach the power control.
I can't use Voice input to control the device (on the off chance there was a "bluetooth off" voice command) because (presumably with the most recent firmware I flashed via Kies a few weeks back) for some reason Vlingo is no longer the app on the double-home button action. Instead it calls Samsung Voice and wants to walk me through a first use tutorial, but I can't click the next/skip buttons
I installed via Android Market push the app belonging to www_remoteaccessphone_com as it promises to be able to remotely switch bluetooth off, but the website says I haven't installed the app yet, presumably because alrhough I was able to install it without touching the phone, it probably needs to be run at least once to set it up, and I obviously can't do that
I can't start Kies Air to try and get my data that way (starting it would require using the touch screen)
Kies via bluetooth isn't supported on Android
Needless to say, the data I'm trying to retrieve is on the internal memory, not the SD card. As you can see I've been trying all sorts of creative things, but I'm fairly sure I'm screwed. Any bright ideas I haven't thought of?
Click to expand...
Click to collapse
flash it with CF-root, boot into CWM recovery, do a nandroid backup after that, use CWM recovery again to mount USB storage, connect to your PC and pull everything off.
Nitrile said:
flash it with CF-root, boot into CWM recovery, do a nandroid backup after that, use CWM recovery again to mount USB storage, connect to your PC and pull everything off.
Click to expand...
Click to collapse
Thanks for the quick advice. I guess I'll need to use my girlfriend's phone to download CF-root and then transfer the SD card to my device. Quick question before I proceed though - is it possible to remove all traces of such tampering, since I've already made out with Samsung that I'm sending it in for repair, and I'm not sure they will honour the warranty if they see it has been rooted etc.
blaubeer said:
Thanks for the quick advice. I guess I'll need to use my girlfriend's phone to download CF-root and then transfer the SD card to my device. Quick question before I proceed though - is it possible to remove all traces of such tampering, since I've already made out with Samsung that I'm sending it in for repair, and I'm not sure they will honour the warranty if they see it has been rooted etc.
Click to expand...
Click to collapse
get a USB jig off ebay or amazon to reset the flash counter. should not cost more than 5 or 6 euros, shipped.
anyways you need to flash CF-root through ODIN if you are coming from stock. instructions are all in chainfire's cf-root thread.
Nandroid Restore
So I successfully rooted, used CWM to do a Nandroid backup, mounted the sd_card and saved the contents (including the nandroid backup) to my PC, reflashed the stock rom & kernel, usb-jigged it to get the counter back to zero/original and sent the phone in for repair. My efforts paid off as they repaired it without question under warranty. I just received the phone back and today set about restoring my backup:
Copied the sd_card contents I'd saved to my HDD back onto the phone
Re-roooted it with Cf-mod.
Used CWM to restore the backup I took before sending it in
It restored boot/system/data/cache successfully
selected reboot now in CWM
The result is that it is still missing all my apps. It only seems to have the "data" like my camera shots and SMS messages, system settings like whether bluetooth is on or off, the volume level, Wifi networks etc. So something was restored. But there is no Google Account configured, the lock screen picture is the default not the one I had beforehand, and as I said, all the apps - the main reason I did this whole thing as my personal data is all backed up to the cloud on a regular basis anyway - have not been restored. Am I confused? I thought a nandroid backup took a complete snapshot of everything, apps included.
Finding out the list of Apps I had in order to reinstall them is not an issue - I have a list of everything I had installed saved on AppBrain. But if I reinstall the apps, all the settings (or progress in the games) within those freshly installed apps will be back to square one, not where I left them, right? Or should I reinstall the apps and then restore the data partition over the top again?
Are you guys using any type of screen protectors, cause if you are, that may be the issue s their have been reports that the screen becomes unresponsive with certain screen protectors when connected to a charger.
However, if you are not using a screen protector, then I would suggest getting the unit replaced as you should not have to do anything, root or otherwise, to get the touchscreen working on a touchscreen phone
achillies400 said:
Are you guys using any type of screen protectors, cause if you are, that may be the issue s their have been reports that the screen becomes unresponsive with certain screen protectors when connected to a charger.
However, if you are not using a screen protector, then I would suggest getting the unit replaced as you should not have to do anything, root or otherwise, to get the touchscreen working on a touchscreen phone
Click to expand...
Click to collapse
Nope, no screen protector or any kind of case for that matter. Anyway, that isn't my issue anymore. The touch-sensitive unit was defective, the phone was repaired under warranty. My issue now is getting my apps & settings back. I have meanwhile read elsewhere that Nandroid doesn't back up the apps - pretty deceptive "backs up everything!" "it is like time travel" etc comments around here then.
Anyway, I reinstalled all the apps I had previously, and thought by reapplying the data partition from the nandroid backup it might then bring back the settings for the reinstalled apps. Instead all it did was remove all those apps again - now I am really confused. How come the restore DOESN'T bring back the apps I used to have, but DOES remove the ones I subsequently install. Does Nandroid touch the apps or doesn't it?
Touch screen not working
So i am having a very peculiar problem related to the GT-I9100 Touch Screen.
I bought the phone from Saudi Arabia and I live in Bangladesh at the moment. So for now I don't have warranty.
I bought it on 4th of this month. It had 2.3.3. So I updated it to 2.3.5. I did not use the phone much before that so I don't know if this problem was there before.
So here is the problem.
First time I noticed it when i pulled the phone from my pocket and could not unlock the pattern. First I thought I forgot the pattern. After sometime I noticed that i could not touch the buttons. I was dragging my finger over the points but there was no connecting line. I restarted the set. But it still did not work. After sometime I took the battery out. And after that it started normally and unlocked. And the touchscreen is totally fine.
I tested it using *#0*#. And every single point in the screen registers touch.
After that this happened couple of times. First couple of days I thought it was a pattern unlock problem. But i tried PIN and Password even using no unlock. It happened in every case.
So after couple of days it totally stopped happening.
But from yesterday it is happening again. And today it happened 3 times.
So today as I had no unlock protocol i tried tapping Home twice. As this brings on the voice command menu. And for the first time i was in the phone without touching the screen.And first i noticed the Menu and Back Soft keys works.And the touchscreen still does not work. And i noticed some thing weird. Always some thing in the screen is Selected. In Menu the + Icon is selected. In first screen the Map icon is selected. Also in Recent Apps the first App is selected. So after a lot of reboots it is back to normal again. Now i see something interesting. In the Battery Usage Graph i can see some really sharp drops. 3 times. Looks like when this happens phones charge takes a nose dive.
So here is the Gist.
Info related the Problem:
1. Usually happens when the phone is my pant pocket for sometime. It does not happen if it is sitting on the table.
2. Touchscreen gets totally disabled.
3. I have no idea why this happens.The exact reason behind it.
4. Battery Charge takes a nose dive when this happens. See the attached images.
5. I still don't know how to bring it back. Sometimes a simple reboot works. Sometimes I have to pull the battery. And sometimes it works on its own.
6. Every other function of the phone works. Like music playback using my UE 200vi music keys using PowerAMP, Siri(Android version), Call can be received using headset.
Battery nose Dive:
dl.dropbox.com/u/30943431/SC20111115-203017.png
dl.dropbox.com/u/30943431/SC20111116-202913.png
Also the selection
dl.dropbox.com/u/30943431/SC20111116-202146.png
So this is the thing. My biggest problem right now is, I don't know why it happens and I don't know how to bring it back from this situation. If I knew I could make sure I don't get it again or I would just fix it every-time. As when this happens I cant make calls or anything which requires the touchscreen.
So guys help me if you can by giving ideas. As i will not go back to KSA in 6 months. So buying a $550 phone unlocked was a total waste. As i cant use it here.
Thanks a million in advance.
---------- Post added at 09:29 PM ---------- Previous post was at 09:13 PM ----------
Sorry for this. But looks like i cant post outside links before i have 8 posts. So i removed the "ht tp : //" part of the links. Copy paste in browser address bar and it will open fine.
And also the next time it happens i will do a video to shou you guys.
Having the same problem while charging touch screen doesn't work
Stock charger and usb cable
i was on CM7 but that happend so i flashed stock but no luck
I will write more observations
hello.
i have a 32 gb hp touchpad overclocked.
when i turn it on i have sound working good.
but after very quicly, it have no more sound at all (even when i push the sound + or soung - button, i see the sound logo going up and down but no sound)
and if i turn it off and on the sound come back.
do you know what can be the problem ?
Thank you
Happens to me ALL THE TIME. I just chalk it up to WebOS being completely unfinished. But then again it could be some of the patches I have installed, since I spent all of about 3 minutes without them.
Me too, I read that Making a call in skype will bring sound back.
Apparently it helps to disable system sound, keyboard and vibrate.
Happened to me twice more today. So annoying.
Happens to mine pretty much daily. I don't see a whole lot of *****ing in general about it though, mostly here and Precentral, which leads me to believe it's mostly "modified" touchpads with this problem. I'm thinking it's a patch or kernal problem.
It's most likely a problem with a kernel or patch. I have 3 16GB's, two stock, one modded, and none of them exhibit this behavior. Since all of you have modded yours, I suggest removing patches/kernels and see if the problem persists.
parisien99 said:
hello.
i have a 32 gb hp touchpad overclocked.
when i turn it on i have sound working good.
but after very quicly, it have no more sound at all (even when i push the sound + or soung - button, i see the sound logo going up and down but no sound)
and if i turn it off and on the sound come back.
do you know what can be the problem ?
Thank you
Click to expand...
Click to collapse
te)
Install the Preware Linux App > Increase TouchPad Volume ( Lite)............
See if it makes a difference
I haven't figured out what causes it for me, but a simple solution to fix it without having to restart is to run a couple commands in xterm..
stop pulseaudio
start pulseaudio
Sound goes off (ANNOYING)
Why does the sound go off all of a sudden, I hate it, I can't even hear youtube videos, it requires a restart
Sent from my SCH-I510 using XDA App
Finally , I had to disable the email audible notification (left the vibrate only). Now it has been OK for more than 1 week, before it will lose sound in a few hours.
Hope HP get's this resolved.
Thanks
trialdoer said:
I haven't figured out what causes it for me, but a simple solution to fix it without having to restart is to run a couple commands in xterm..
stop pulseaudio
start pulseaudio
Click to expand...
Click to collapse
If you install the "Advanced Reset Options" patch, you can use it to restore your sound...
Just hold the power switch until the buttons show up, then tap "Cancel".
Hi,
Advanced Reset option does not fix the issue for me (unless I select Reset).
Sound fails even if the only App I have opened since a full reboot is the email App.
Maybe one of the installed Logging patches is causing the sound to drop out? Maybe we should enable logging to see if the logs give any indication around what is causing the sound issue?
this issue was happening to me everything my touchpad would go idle for longer than an hour (super annoying) however I gave all the suggestions here a try and finally had luck with robrob777's suggestion! Turning my email notification sounds to vibrate has seemed to fix my issue hasn't happened in 2 days. Just wanted to say thanks robrob777!
gburt said:
Advanced Reset option does not fix the issue for me (unless I select Reset).
Sound fails even if the only App I have opened since a full reboot is the email App.
Click to expand...
Click to collapse
There's an article over on precentral about fixing the problem, though it really isn't a fix, but rather a way of getting your sound back without a reboot. See it at:
www
precentral.net
/
fix-your-touchpad-s-lost-audio
Sorry about the format of the link, but forum rules for newbies prvented me from posting it properly. Since it obviously isn't spam, I am hoping I won't be in trouble for it.
It's complicated, and you might find a reboot easier, but perhaps some developer who's into patches will spot it and come up with a more permanent fix, either to fix the problem itself, or at the very least, to have the stop/start fix applied when the volume control button reaches max and is pressed again once or twice.
Update: It just became a little easier to apply the start/stop "fix". XServer, Xterm, and Xecutah just became available on webos-internals (.org). Just use Preware, select Applications, All, and the new stuff will show at the top of the page. Just download Xecutah and the other two packages will download with it if you allow it.
Update 2: Even easier...
After installing the X stuff, start Xecutah and create a shell script in the default directory you land in with Xecutah. I just used cat and typed it in.
cat >fixaudio
Here's what I put in it...
#!/bin/sh
stop pulseaudio
start pulseaudio
Then, fix up permissions...
chmod 070 fixaudio
(It's been a while since I used Unix/Linx, but I'm sure someone will correct my permissions choice if it's not right).
Then, when your sound goes away, start Xecutah and type fixaudio.
Even better... Use Preware to find an app called PulseAudio Restarter. Works well.
Hi
I've recently got one of the EU 1/8 Omate Truesmart watches. To start with it was fine, but after realizing I had missed some calls yesterday I realized that the watch made no sounds and the mic wasn't working either when I made some test phone calls. The vibrate does still work. I've changed the Modes in the Audio Profile but that doesn't seem to have made a difference.
Has anyone else had these problems?
I suspect the mic and speaker are in different parts of the watch, so I'm guessing its a software issue rather than something has shaken loose. I tried to work out how to reset the watch, but so far I haven't worked out how to do that (I haven't patched it yet, so it still has the original version of the firmware etc).
Thanks for any assistance
Somehow I managed to get the sound and mic working again . The last thing I was trying was to turn the watch off and on repeatedly, pressing or holding the two buttons down while it booted. One of the other posts suggested that I could get to a menu to reset the watch this way. Whilst I never saw a menu, on one occasion it did take longer to boot than normal (a few extra seconds) so I may have selected an option with out realising.
I've been reading here for months waiting for my TS to arrive and today it has!
I quickly found that all sound and mic was not working and my heart sank. But reading this question and the poster's own reply, and a hint from elsewhere, I turned off "fast boot" in the accessibility menu, shut down and restarted, and hey presto, sound input and output works fine. The "fast boot off" setting seems to be required in order to make the device really reboot.
Many, many thanks to all here who have been contributing to the knowledge base on this device. Hopefully I can now contribute, if only from the point of view of a non-expert man-in-the-street end user, from time to time.