I recently purchased a dell 20 inch touch screen. One of the major selling points was that it supported an MHL-HDMI, meaning 1 simple cable would supply both an HDMI and USB connection from my phone to the monitor... which it does. The issue however is that the touch screen does not respond correctly to input. Anywhere I touch on the screen it simply hits the same spot near the top left over and over. USB devices plugged into the monitor (it's also a hub) work just fine.
I thought it might have been the cable so I tried an external MHL adapter and ended up with the same result. Then I hooked up some other android devices(tronsmart prometheus, and an ouya (running CM11)) through hdmi with USB attached and again received the same response. It does however work normally with every variety of x86 computer I've tried; even android x86.
This seems very similar to a configuration issue I fixed on an a touchscreen Ubuntu laptop years ago. Some googling helped me solve that one quickly and easily, but the problem is that I have no idea where to start on this one. Searching is almost impossible as any combination of "android" and "touch screen" tends to take me off in the wrong direction. Even here 4 out of the 5 threads I've found are at least 5 years old and quite hypothetical.
Of course it could always be a deeper issue involving a lack of kernel support, in which case I'm probably screwed.
Any suggestions on where/how to start? If nothing else this can at least act as a warning for people not to buy MHL HDMI touchscreens and expect them to work with android phones out of the box. At least not yet.
Thanks for any ideas in advance
i`am exactly in the same position right now, beside not having bought a touchscreen yet.
my thoughts were also to buy a dockingstation for the htc one x (m8), to have
hdmi and usb , then just connect both to a touchscreen monitor and make use of mhl
to make it work, meaning having proper touch functionallity on the monitor.
and you`re right, i`am searching this topic for some time now, seems like this idea diyed out in 2011,
at least according to the internet
so, not much of help from my side, but def. interested to see how this thread goes !
Related
Hey people,
Massive regret if this has already been covered to the point of solving somewhere but i just can't seem to find a clear solution to my problem.
One of the main reasons i opted for the Archos 101IT was because of the usb storage possibilities and i am sadly let down by the lack of functionality. After searching over XDA forums, ArchosFans and a few other forums i have gathered alot of information about the usb ports and was even suggested a kernel that will let me extend the power supplied to the port (Currently only 100mAh i believe?)
My problem is im already on a different kernel and don't wish to trade my perm root and higher overclock just so i can use the ports as they should already work anyway. I have a 16gb and 8 gb sandisk flash drive that i would love to use but sadly it dosn't work. I also found a conversation (can't seem to find it again) where a list of successfull usb host adapter cables was created and so believing it i went ahead and bought one and it still dosn't work.
I have no doubt in my mind it's probably something i am doing wrong and if someone could slap me in the right direction i would be very greatful.
Again, sorry if my attempt at searching has failed but despite the countless conversations on this topic the only solutions that i have come across are completely changing my kernel and a cable that didn't work!
Why is it so difficult to use damn storage? that's what the usb is there for am i wrong?!
Thanks in advance =]
your post doesn't make that much sense - Archos 70 and below requires usb host cable - the 10 already has a full size usb host port and sufficient power to run flash drives
Yes it does, but as i said it only powers up to 100 mAh without the usb power kernel and i believe it's the mini usb that powers higher normally. It's my understanding that on the other posts i have read a host cable from the Mini usb port is supposed to give you the option of powering a flash drive as the mini usb offers a greater power supply.
I hope this makes sense now, im just reporting what i'v gatherd viewing other peoples issues and im confused to hell about any real/ideal solutions and also as to why the bloody thing can't just work as advertised.
Maybe if we can't get any meantime solutions people could start listing what's working for them? If anything at all? As i have seen reports of success with flash drives on both the 101 and 70 and also people saying they had it working at one time then it's never worked since. All threads seem to end in either "Sold my archos" Or "Sent back to archos and and they replaced it but now it's still not working" Also i can see archos have no apparent interest in the complaints that people have made.
Cheers
The 100mA limit is only on the A70. The A101's full-size host post puts out about 450mA, but alot of devices have an initial spike higher than that in the initial plug in, just to charge the capacitors and enter active mode. The problem with the A101 is that it shuts down current when it spikes like that, resetting the device, and requiring another start-up cycle. No solution I know of yet. I've managed to find low-power devices, you can also use an in-line power supply usb cable.
Hi msticninja, cheers for your reply.
Sorry for my complete lack of electronics but im understanding that the flash drive's im using require more then the 450 just to power up and then they would use less?
Does inline mean a mains powered usb? as i have a 2 tb mains powred HD that i havnt tested yet but if it worked it would be a temp solution for home, but i would love to be able to use my flash drives (or any flashd drives) when on the go. Could you suggest some of the flash drives that have worked for you under that power spike?
Thanks!
Nufan1121 said:
Hi msticninja, cheers for your reply.
Sorry for my complete lack of electronics but im understanding that the flash drive's im using require more then the 450 just to power up and then they would use less?
Does inline mean a mains powered usb? as i have a 2 tb mains powred HD that i havnt tested yet but if it worked it would be a temp solution for home, but i would love to be able to use my flash drives (or any flashd drives) when on the go. Could you suggest some of the flash drives that have worked for you under that power spike?
Thanks!
Click to expand...
Click to collapse
Yes, after the power up they use less, but that initial spike causes the Archos to shut down the USB port.
Definitely try the mains powered HD just to test. Also, sometimes a really quick unplug and replug can help.
My Kingston Datatraveler G2 (16GB) works fine, and I have some generic 1GB sticks that work as well. It's kind of hit or miss, to be honest. If you have a local electronics store, they may have some that aren't packaged, so you could test them in-store.
http://cgi.ebay.co.uk/Kingston-16-G...660?pt=LH_DefaultDomain_3&hash=item19c64a7c54
Is that the right one? I sadly live about 20 miles away from any decent modern electronic store so id rather just buy one, if there's anything i have learned about flash drives as a producer, you can never have enough and also they will always sell on ebay for near the original price.
Thanks again =]
Also, Just plugged an old microsoft mouse into the large usb port, it lights up for a second then turns off with no real connection made.
Tried the same mouse in the smaller usb port with a host cable and nothing happens, could be the cable though.
Nufan1121 said:
http://cgi.ebay.co.uk/Kingston-16-G...660?pt=LH_DefaultDomain_3&hash=item19c64a7c54
Is that the right one? I sadly live about 20 miles away from any decent modern electronic store so id rather just buy one, if there's anything i have learned about flash drives as a producer, you can never have enough and also they will always sell on ebay for near the original price.
Thanks again =]
Also, Just plugged an old microsoft mouse into the large usb port, it lights up for a second then turns off with no real connection made.
Tried the same mouse in the smaller usb port with a host cable and nothing happens, could be the cable though.
Click to expand...
Click to collapse
I don't think the mini-usb operates in host mode on the A101, only on the A70. As for the mouse, I have had better luck with wireless mice. I think the wired ones, older "red" optical ones in particular, use more power than I expected.
I think I told you the wrong USB drive though. I'm just plugging it in to double check and it's not working. Let me look around and figure out what I was using.
Haha yeh it was a wired oiptical one, i assume the wireless ones work better as most are powered by battery and im guessing the usb reciever only needs a small ammount of power. Is that the correct usb on the ebay link though? If so i will buy it asap as im desperate for a working solution.
Thanks =]
Looking through logcat though, I don't see a power error. I think I formatted this [email protected] with NTFS, and it can't mount it. Give me a couple of minutes to test this out.
Yep, that's the problem. I just turned on NTFS support in UrukConfig and it mounted just fine. That link on eBay should work fine for you as long as you don't use NTFS without urukdroid.
Ok cool, is it having trouble recognising it now? Both mine are Fat32 i believe in order to switch between my mac and windows computers, let me know if it still works when you can =]
It's fine with NTFS enabled in UrukConfig. Fat32 should work by default. BTW, you can enable NTFS support on Mac pretty easily. If you have files bigger than 4GB, it's essential.
Haha i havnt had to cross that issue yet as i mostly work with sound samples around 2mb or under, but i will definately be correcting that soon. So is this the correct model before i purchase it? im excited now that you have re confirmed it! =]
http://cgi.ebay.co.uk/Kingston-16-G...660?pt=LH_DefaultDomain_3&hash=item19c64a7c54
Thanks for the info!
Yup, that's the one. It's a tiny bit big, but it's very fast.
Haha mate, size isnt an issue at all, aslong as the damn thing works im going to be a happy bunny. All i have been missing since buying this thing is the extra storage. My sd card is currently running whole OS as it was needed for 'perm root' and it also has 259 swapfile so that's the 8gb gone. If this usb storage works it means i'll finally be able to free up the enitre internal storage i've been clogging up with music and movie for some more apps.
Wish me luck =p thanks again! =]
That's why I like to run Android from the Internal Storage, so I can remove the Sdcard without shutting the tablet down.
Good luck!!
As soon as a decent root comes along where i can overclock to 1.2ghz on internal storage id be more then happy to run on internal, sadly the only one i know is archangels and it only works when in a wifi area =/ unless im mistaken then id gladly eat my words! =]
Nufan1121 said:
As soon as a decent root comes along where i can overclock to 1.2ghz on internal storage id be more then happy to run on internal, sadly the only one i know is archangels and it only works when in a wifi area =/ unless im mistaken then id gladly eat my words! =]
Click to expand...
Click to collapse
Technically you could, but it's a bit of an involved process. You do need the SDE installed though. Actually, I wonder if anyone's tried ardatdat's kernel recently with Uruk. It hasn't worked for a while, but there's been multiple beta updates since the last time I tried it.
That would be very tempting, im on sde anyways. Just a question, whats the 1 watt speaker about in ur sig? Is that a hack?
Nufan1121 said:
That would be very tempting, im on sde anyways. Just a question, whats the 1 watt speaker about in ur sig? Is that a hack?
Click to expand...
Click to collapse
My speakers went out, because they're horribly overdriven, like most people's. I replaced them with 1 Watt Kobitone speakers that have a higher sensitivity, so it's louder at lower volume settings, and can go to a very high max volume without damaging the speakers. It's a simple replacement, but you have to open the case and solder in the new speakers.
Hello all, iv recently purchased the Acer T series monitor for use with windows 8, it is absolutely wonderful and extremely responsive with 10 point touch, IPS, and 1080. I was wondering where i should even start when trying to get this to work on my Razr. It needs only HDMI and a USB cable. i tried the obvious to just plug it in and the monitor worked but the touch didn't. Can someone at least point me in a right direction or just where i could get some more information because i have found absolutely nothing. i cant believe no one has tried to hook and android device to an external USB touchscreen. This would be awesome if i could use a HDMI android stick/ RPi with this instead of my phone.
I have tried HDMI out on 3 TVs and it only works on one. The one it works on is the newest one by a few years.
On the other TVs the results range depending oddly on the cable. A $30 Rocketfish cable I purchased for testing and now returned resulted in zero output on the other two TVs. My cheap cable will make some crackling noises and the screen will flicker on and off.
No output at all through my my receiver.
On the third TV... a 2012 model I believe, it works great. I have never had any issues with HDMI out on the other TVs although I only use an older laptop and a PS3.
Any clue what might be going on? Do I have a bad device or are my older TVs not compatible for some reason with the Tegra 3 HDMI out?
Thanks.
I finally got through to Hisense support. Major PITA as they disconnect you after a minute or so of hold time. Not like I expected anything different. Regardless they guy had no idea about any issues.
I'm going to go and buy another from Walmart and see if it has the same issue or not.
Went and bought another one to test the HDMI out with.
Same issue. So this tablet has problems with some TVs. Searching a bit further it seems like some android devices regardless of manufacturer have HDMI out compatibility issues.
Chromecast should hopefully solve this issue anyways.
tripleoptic said:
Went and bought another one to test the HDMI out with.
Same issue. So this tablet has problems with some TVs. Searching a bit further it seems like some android devices regardless of manufacturer have HDMI out compatibility issues.
Chromecast should hopefully solve this issue anyways.
Click to expand...
Click to collapse
Chromecast works great with this tab. Havent tried the hdmi yet.
I've seen some strangeness of a different type. When I plug my Sero 7 Pro in to one of my TVs with a particular cable, the touch screen starts acting funny, meaning a touch registers as a swipe and we'd things like that. Anyone else seeing weirdness like that?
Thanks!
Sent from my Sero 7 Pro using Tapatalk 4
HDMI issue
I am having an HDMI issue. For me, whenever I connect an HDMI cable to any HDTV and use Adobe PDF Reader while scrolling and zooming in I get all kinds of artifacts and glitches on the tv screen but not the screen of the tablet. I've used two different tvs and they both react in the same way. These jagged lines appear on the screen while zooming and scrolling but disappear right after i lift my finger off the digitizer. I haven't tried many other apps but it seems like its solely Adobe PDF Reader reacting this way. The few other apps I've tried do not react this way.
Would this be caused by...
The tablet itself?
The current software/os version?
The hdmi cable?
The tvs?
Model number: M470BSA
Android version: 4.2.1
Kernel version: 3.1.10
Build version: P756.6.02.11.00
I just bought the tablet a couple days ago and was notified of an update, P756.6.02.20.00. Should i go ahead and apply this update? or has anyone experienced this issue before and found a remedy? Any help regarding this minor but annoying issue would be greatly appreciated.
Different cables with less or more quality is not odd at all really.
I would not be surprised to find out that all your problems are from the cable you used and/or the tv you tried to use and not the tablet.
tripleoptic said:
I have tried HDMI out on 3 TVs and it only works on one. The one it works on is the newest one by a few years.
On the other TVs the results range depending oddly on the cable. A $30 Rocketfish cable I purchased for testing and now returned resulted in zero output on the other two TVs. My cheap cable will make some crackling noises and the screen will flicker on and off.
No output at all through my my receiver.
On the third TV... a 2012 model I believe, it works great. I have never had any issues with HDMI out on the other TVs although I only use an older laptop and a PS3.
Any clue what might be going on? Do I have a bad device or are my older TVs not compatible for some reason with the Tegra 3 HDMI out?
Thanks.
Click to expand...
Click to collapse
There are definitely issues with the Sero 7 Pro and older TV's via HDMI out. In my case, I'm lucky enough to get a picture on the screen, however it fails back down to 480p which is just unacceptable.
With that said, there is some hope. The issues that I am experiencing do not seem to be directly tied to a hardware problem, but rather software. Via rooting and trying a custom rom, that is not based off the stock rom, I was able to get a 720p picture on screen though there are other issues
http://forum.xda-developers.com/showpost.php?p=46403207&postcount=44
I have a small, cheapo TV that causes problems with my touchscreen whenever I plug in the HDMI cable to my tablet. Plug it into my big Samsung TV and it works great! Weird, eh? The small TV causes the touchscreen to register taps as swipes..
Sent from my SAMSUNG-SGH-I747 using Tapatalk
MrSimmonsSr said:
I have a small, cheapo TV that causes problems with my touchscreen whenever I plug in the HDMI cable to my tablet. Plug it into my big Samsung TV and it works great! Weird, eh? The small TV causes the touchscreen to register taps as swipes..
Sent from my SAMSUNG-SGH-I747 using Tapatalk
Click to expand...
Click to collapse
The touchscreen being erratic happens on a few of my other older devices with HDMI & MHL connected too. It seems that most of these haven't been tested extensively in this mode. There's a ground connection problem, I remember it was better if I connect a charging cable also, or holding it slightly differently or setting it down when using the touchscreen & HDMI connected.
Erratic screen problems
I almost returned my tablet today. I have three of them and only one exhibited erratic behavior while using HDMI out.
The screen would barely respond to my touches. It would misread and select the wrong things. I couldn't play games or scroll the screens. A mouse would work but not touching the screen.
It turns out the erratic screen problem goes away if I turn off the Sony Playstation 3.
This time I tested it and it is repeatable. I had both the cables plugged into the TV next to each other so now I separated them.
Now that I think of it I remember seeing a video about a guy who thought he had screen problems but it was interference from a nearby computer.
I found the video I remembered of the guy who was having the same problem due to interference from his computer. He demonstrates the erratic screen behavior and says he returned his tablet twice thinking it was faulty.
I can't post the link...oh well. You'll have to look it up.
I'm having a somewhat nonsensical issue with my keyboard dock: The keyboard does not work at all, the trackpad works perfectly, battery works, the dock port to connect to the computer works, the dock USB port supplies power (judging by the light from my optical mouse), but the tablet doesn't seem to detect anything connected to the USB port, i have not tested the dock SD slot.
I also connected a TF201 to my dock with no difference in the symptoms displayed.
Any ideas? Or am I out a dock?
Thanks!
Same problem
solitarywarrior1 said:
I'm having a somewhat nonsensical issue with my keyboard dock: The keyboard does not work at all, the trackpad works perfectly, battery works, the dock port to connect to the computer works, the dock USB port supplies power (judging by the light from my optical mouse), but the tablet doesn't seem to detect anything connected to the USB port, i have not tested the dock SD slot.
I also connected a TF201 to my dock with no difference in the symptoms displayed.
Any ideas? Or am I out a dock?
Thanks!
Click to expand...
Click to collapse
Hate to be that person, but I have to exact same problem! My tablet is running Cynanogen Mod 11. It still charges and the trackpad works, but the keyboard is 100% unresponsive. Whenever I plug in the dock it asks me to choose the keyboard layout in the notifications bar as well.
It seems that a few other people have this problem, I did find another thread about this exact same problem but it was from a long time ago and all they said was for the guy to return it and get it replaced.
It just does not seem to make sense that the track pad, charging station, and USB port for file transfer and stuff would work, but not the keyboard. I thought I might have changed a setting but I just factory reset the tablet and reinstalled Cynanogen Mod 11 and it still doesn't work . If anyone can enlighten us... that would be great!
Finally,
I read somewhere that you can cold boot the device. Here are the steps:
http://forum.xda-developers.com/wiki/ASUS_Transformer_Pad/TF300T#Cold_Boot
That method didn't work for me however, but idk maybe it will work for you.
I have no idea where the warranty card is, or how that even works but I heard ASUS warranty just sucks, so that is probably not an option for me. If it helps I bought mine off amazon.com a year ago or so.
chyungspice said:
Hate to be that person, but I have to exact same problem! My tablet is running Cynanogen Mod 11. It still charges and the trackpad works, but the keyboard is 100% unresponsive. Whenever I plug in the dock it asks me to choose the keyboard layout in the notifications bar as well.
It seems that a few other people have this problem, I did find another thread about this exact same problem but it was from a long time ago and all they said was for the guy to return it and get it replaced.
It just does not seem to make sense that the track pad, charging station, and USB port for file transfer and stuff would work, but not the keyboard. I thought I might have changed a setting but I just factory reset the tablet and reinstalled Cynanogen Mod 11 and it still doesn't work . If anyone can enlighten us... that would be great!
Finally,
I read somewhere that you can cold boot the device. Here are the steps:
http://forum.xda-developers.com/wiki/ASUS_Transformer_Pad/TF300T#Cold_Boot
That method didn't work for me however, but idk maybe it will work for you.
I have no idea where the warranty card is, or how that even works but I heard ASUS warranty just sucks, so that is probably not an option for me. If it helps I bought mine off amazon.com a year ago or so.
Click to expand...
Click to collapse
Cold-Booting doesn't fix it for me either and i'm out of warranty, so ASUS isn't gonna be much help to me either...
It's good to know i'm not alone at least!
solitarywarrior1 said:
I'm having a somewhat nonsensical issue with my keyboard dock: The keyboard does not work at all, the trackpad works perfectly, battery works, the dock port to connect to the computer works, the dock USB port supplies power (judging by the light from my optical mouse), but the tablet doesn't seem to detect anything connected to the USB port, i have not tested the dock SD slot.
I also connected a TF201 to my dock with no difference in the symptoms displayed.
Any ideas? Or am I out a dock?
Thanks!
Click to expand...
Click to collapse
not sure if you have solved this yet but I had the same problems and it turned out that one of the kids had knocked the keyboard off my desk and it had loosened a connection internally within the keyboard.
I found a youtube video of how to fix it, unscrewed the back of the keyboard and carefully popped the connector back in place.
It's a bit fiddly and took me about 30 mins to do with average electronics related knowledge
gasgrassorarse said:
not sure if you have solved this yet but I had the same problems and it turned out that one of the kids had knocked the keyboard off my desk and it had loosened a connection internally within the keyboard.
I found a youtube video of how to fix it, unscrewed the back of the keyboard and carefully popped the connector back in place.
It's a bit fiddly and took me about 30 mins to do with average electronics related knowledge
Click to expand...
Click to collapse
Any chance of linking the Youtube video? Had the same problem for a while and pretty much just let it be but a fix would be nice
gasgrassorarse said:
not sure if you have solved this yet but I had the same problems and it turned out that one of the kids had knocked the keyboard off my desk and it had loosened a connection internally within the keyboard.
I found a youtube video of how to fix it, unscrewed the back of the keyboard and carefully popped the connector back in place.
It's a bit fiddly and took me about 30 mins to do with average electronics related knowledge
Click to expand...
Click to collapse
UndisputedGuy said:
Any chance of linking the Youtube video? Had the same problem for a while and pretty much just let it be but a fix would be nice
Click to expand...
Click to collapse
Nevermind, opened it up anyways and saw exactly the same problem. Reconnected the cable and the keyboard worked again after months of thinking it was just broken. Pretty chuffed and quite amazed, probably wouldn't have even attempted it if it wasn't for your post and this thread. Thanks for the information, very much appreciated here
UndisputedGuy said:
Nevermind, opened it up anyways and saw exactly the same problem. Reconnected the cable and the keyboard worked again after months of thinking it was just broken. Pretty chuffed and quite amazed, probably wouldn't have even attempted it if it wasn't for your post and this thread. Thanks for the information, very much appreciated here
Click to expand...
Click to collapse
Woah, I ended up buying a TF700, but i'll probably attempt this fix as soon as I have a spare minute!
So I fell on the ground with the phone hanging on a neckband around my neck at the time of the fall; screen is busted... Let me remind you phone was NOT rooted yet (I bought it the night before, didn't get to it YET), with a trick found on YouTUBE connecting an OTG USB adapter to the phone and connecting any USB mouse to this OTG adapter, then this broken screen will have a little cursor/arrow light up;
Obviously, after that you can do whatever with a cursor coming up on this broken screen and with normal clicks you are all set...
But now is another problem......
In order for me to be able to take a full backup of that broken LG and to be able to load it on to this one, I would need to have the phone ALSO plugged in with my PC at one point of time.... now here is a dilemma... mouse is already there.
And I’m %100 sure that there has to be a workaround for this situation. Maybe there is an app in store that can do this for you? I can’t be the first to bust my screen, right?
Can't find a link for my G3, but this very simular. http://podfob.com/products/samsung-galaxy-s6-podfob
Thanx folks
P.S. Later tonight I'll be getting my new LG replacment phone. So please, give me your advice??