I got my Xoom (WiFi) yesterday... already noticing some weird touchscreen behaviour.
It seems to me that whenever the Xoom is laid down flat, there's a chance that the device will stop responding to touch presses properly. Instead of being able to press-and-swipe, it acts like I tapped the screen (eg, pressed my finger on the screen and then lifted it straight back off) or worse, it causes a screen press in completely the wrong position. When it starts happening, it keeps on happening, but picking the Xoom up and holding it vertical seems to fix the problem.
Half the time it seems fine laid down though, so I'm not sure if it's just coincidence that it stops working at the same time I put it down flat or not, or that maybe picking it up means my hand is in contact with the back of the screen and this somehow changes some sort of electrical variable in my hands that affects the touchscreen operation.
Anyone else seen the same issue? I'm thinking I may need to take it back but want to see if anyone else has experienced anything similar.
Chris.
ok.. judging by the lack of response on this, I may either be on my own or it's just something that nobody is noticing. I've been testing it a bit more - I wrote an app which can show each touch point on the screen so I can see how the screen press/drag is working. This is what I've found.
Holding the tablet upright, screen presses and movements are fine, however I've noticed that if I hold my fingers in the same place for a while, the touch points will prematurely end.
If I put the Xoom down on the couch, there is a strong likelihood that the touchscreen will become incredibly unresponsive. I have had it regularly show up phantom presses where touching one point of the screen makes it appear as if I have also pressed another point of the screen. I also cannot drag my fingers across the screen - the touch points stay where they are until I take my fingers off the screen completely, or they just disappear right away as if I tapped the screen.
When this happens, if I touch the side of the case with either a free finger or my other hand, the touchscreen starts working perfectly! Seriously! I'm not kidding, I've been messing with this thing almost non-stop for the past coulpe of days and it is consistently doing this. So - couch + little finger on side of case = working touchscreen. couch but no contact with metal case = malfunctioning touchscreen.
If I have the Xoom in Motorola's case, it seems to work fine. If I put it on a table, it's a bit buggy but generally works better than on the couch. Any sort of material seems to send it regularly into crazy mode. The only time I've noticed it doesn't do this is if I'm in contact with the device immediately before putting it down and then remain in contact with the screen.
Could some sort of static charge cause this? Is it possible that me touching the back of the case is effectively allowing it to 'conduct' electricity properly on the touch screen? I'm not all that familiar with how capacitative screens work other than I assume they measure capacitance from your fingers. Maybe a static charge could throw it off. Or maybe I have weird fingers.
Anyway, I'm pretty close to taking the Xoom back now. Just trying to figure out if it's actually faulty or whether they're all like it by 'design'.
sorry
need to post to remove my limitations sorry again
This could be a loose touch controller cable. Someone had similar problems and posted a how to fix this, search for it.
It happens with me too, it's incredible annoying when you are developing and the tablet is on your table for debugging..
Did you find how to fix it?
I have a serious unresponsive issue on my Xoom when charging. I've tried several different chargers, (all from Motorola) with no luck. Unfortunately all the ones I tried where at my house so I'm not sure if its a wiring issue in my house.
I also have a similar problem on my Droid Razr so I'm starting to think its definitely the wiring.
Anyone know about this issue or have any recommendations?
kiroiv said:
I have a serious unresponsive issue on my Xoom when charging. I've tried several different chargers, (all from Motorola) with no luck. Unfortunately all the ones I tried where at my house so I'm not sure if its a wiring issue in my house.
I also have a similar problem on my Droid Razr so I'm starting to think its definitely the wiring.
Anyone know about this issue or have any recommendations?
Click to expand...
Click to collapse
Thats weird.. i owned xoom n droid razr too but i dun have any iissue
It could be a wiring issue (try another house, I guess), but a lot of devices are like that where the touch screen stops being as responsive when it's on a wall charger.
Hi everyone, this is my first post here. Thanks in advance for any help that you folks can provide.
I've had the TF101 for about six months now, and it's been fine. I was using it yesterday on the train and all was good, but when I got home and took it out of my bag it didn't seem to start up. I thought it might have been a battery issue, so I let it charge overnight. Tried starting it up this morning and I got the same results. So I started looking in to other issues.
The tablet is definitely starting, adb will recognize it in its list of devices, and if I plug it in to my tv or desktop monitor w/ HDMI, I can see and interact w/ the Transformer UI (of course this is kind of painful since I have to do some guessing about where to put my fingers).
I had rooted it using rebound821's scripts and directions here, so tried an unroot to see if that was the problem. I ended up with the same results.
Does anyone here have any insights as to what the problem may be? I'm hoping to avoid sending it back to ASUS, so I'm fine w/ opening it up to look for loose cables.
So I thought that brightness might be the problem. Maybe it was set to 0 and I just wasn't seeing anything on my screen. Sadly, that doesn't seem to be the case.
I tried setting brightness at the path below to to 0, 50, 100.
/sys/devices/platform/pwm-backlight/backlight/pwm-backlight/brightness
Still no luck.
Has anyone encountered anything remotely similar to this (even if similar is just a dead screen)?
There have been others with dead screens reporting what you are, at least I have read a few reports, I think they just had to get them RMA'd, I don't recall anyone 'fixing' a dead screen, especially if you still have adb and touch working then the screen itself and backlight seem to have broken completely- some have reported the backlight dying and thinking the screen was broken, but it was just the backlight (I guess in bright light they could see pixels working, but couldn't make out what was on the screen without the backlight). I still think they had to get it repaired either by Asus or by someone who was capable of doing internal repairs with replacement parts..sorry for your luck
Looks like I'll have to send it back. I took it into the brightest light I could find and couldn't see anything at all. Guess it's the screen and maybe the backlight too. I'm pretty disappointed this happened, the only thing I can think of is that the bag I had it in was hanging from the chair in front of me on the train and it was swaying a little, and that shouldn't be enough to dislodge a connection. Either that or just some freak hardware failure. Still, I guess it's not that common of an occurrence. Thanks for the reply, I'll slink off and try to get in touch w/ Asus now.
I have experience same
My TF101 broke in the same way, screen blank. Conected to tv I`ve got image digital touch work. I shut down my TF101 normaly and screen never go back to live again. Tablet was in a protective bag (when I trave by car), just no reason for not working ( no problem at screen, previously, screen perfect - no dead pixels)
Did you guys get this resolved? I had the EXACT same thing happen yesterday. Was working just fine. Put it in its sleeve, into a protective case, into a briefcase, got home and dead.
HDMI works. I tried to call Asus but they say i'm out of warranty.
Thanks in advance.
Must be something wrong with the connections that it decays over time. I've had mine since October last year and its been fine except for today when I brought it home it wouldn't work.
I was able to fix it though. I held it vertically with the bottom edge down and tapped it firmly on my desk a couple of times. The screen came back on. There is a strong possibility that this will happen again and my tap fix won't work, but it's working at the moment
Asus Transformer screen
elementalfire23 said:
Must be something wrong with the connections that it decays over time. I've had mine since October last year and its been fine except for today when I brought it home it wouldn't work.
I was able to fix it though. I held it vertically with the bottom edge down and tapped it firmly on my desk a couple of times. The screen came back on. There is a strong possibility that this will happen again and my tap fix won't work, but it's working at the moment
Click to expand...
Click to collapse
I had exactly the same problem discussed in this thread. I was also able to bring the screen of my TF101G to life by tapping it firmly on my desk with the bottom edge. It works for now. But it is certainly disconcerting to know that some connection in this rather expensive gadget are loose and all this can happen again. I guess I will not carry my transformer around any more - just leave it at home...
spokey said:
My TF101 broke in the same way, screen blank. Conected to tv I`ve got image digital touch work. I shut down my TF101 normaly and screen never go back to live again. Tablet was in a protective bag (when I trave by car), just no reason for not working ( no problem at screen, previously, screen perfect - no dead pixels)
Click to expand...
Click to collapse
Same problem here had my unlocked bootloader tf101 for awhile now, one of the first ones out... had a great life gave it to my girl when i got the transformer prime and the screen just went out yesterday, still goes in apx mode and still recognized by computer, screen just straight up died, think it's too late for a manufacture warranty, maybe ill look but think it's gonna be no dice... sucks obviously something in the design to make this happen to so many of them...
My TF101 appears to have a dead screen. I am rooted and running Revolver Custom Rom. When connected to my pc, I am able to recognize my device. My screen will not turn on so I cannot use recovery to go back to stock. I am set up to use ADB, however, I am not very knowledgable with ADB. I am convinced I have a bad screen and I am still under warranty. Is there a way to return the TF101 back to stock using ADB? If anyone can point me in the right direction, I can probably figure it out. Otherwise, I may just try and replace my screen and see how that works out. Thanks for the help.
My backlight died on Tuesday. Similar situation of working in the morning, headed into work with it in my bag, no brutal knocks or anything but one jolt just must of finished it off after a year and 2 weeks abuse (yes 2 weeks out of warrenty).
Going to attempt to take it apart this afternoon and play with the ribbon cable as reseating it has solved quite a few peoples problems.
Woo! It worked! Very happy chappy.
Sent from my SK17i using Tapatalk 2
Same thing happened too me, first time i sent it to service, but last time i opened it myself and pushed the connector for the screen thightly in place.. worked nicely
Sent from my Transformer TF101 using xda app-developers app
Screen goes derp
I don't know if I have the same problem or not.
Backstory: I own a Transformer TF101 that I got for my birthday from my girlfriend. It was meant for travel and bs'ing around at home. Took it into work and quickly realized that I could use this for work. That went over so well that the rest of the office became intrigued. Once these came on sale on groupon, the office manager went all in on 10. These are all refurbished transformers with docks.
They have all been handed out and I now have a transformer for home and work. Kind of nice...but I do a lot of site observation so using my personal transformer was a risk that I had to take all on my own (survived a 5' fall off of a parapet wall already).
The problem: From the first 5 minutes that I had the thing, the transformer screen went blank. I opened up google play to download a few apps that I could use for work. Scrolling down I saw some choppyness which I considered the processor/memory having issues loading everything on the screen. Before I knew it - boom blank screen. Rebooted and the loading screen stays on for 2 seconds before the screen goes blank. I can tell it's working because it plays a sound at start up. I can also tell the screen is lit up (it's like it's showing a grey screen because it can't show true black colors). If I hit the power button again it goes completely black. I hit the power button again and the screen flashes to the lock screen and immediately goes blank again. I could do this over and over and over again.
Anybody having the same problem? It's refurbished....I'm guessing apparently I got the dud.
I ran into pretty much the same problem. One morning, the tablet screen would just not turn on. Sometimes, it came on and immediately shutdown, but it is still on the "On" mode. Hit the power button again will bring it to the off mode. Toggle it one more time, sometimes, will turn on the screen a off again. I was able to get it back to work with a factory restore. However, it has the following problems.
1) As soon as I adjust the brightness, the screen will go off again. And there is nothing I can do to bring it back except another factory restore.
2) The screen will flicker (and sometimes produces some clicking sound) when charging with the screen on.
Looks like my TF101 is having same issue, screen gone off suddenly (hdmi shows up in TV fine)...I am going give a try on reseating the cable hoping it resolves the issue.
leonpr, is there some tips/things I have to make sure before attempting this. I found a guide here and another youtube video on this issue as a reference...
Thanks..
Screen won't turn on unless factory reset "fix"
My girlfriend has an ASUS TF101. If the brightness goes up to 60%, the screen is blanked (no backlight either) and the only way to get it to turn back on again is to hard reset. This coincidentally happened at the same time as an update from ASUS. After lots of Googling it does not appear to be related. I was hoping it was and installed several custom ROMS which all experienced the same issue.
As a temporary work around, until I get the guts & the money to be able to replace her tablet if I break it, I found and installed AutomateIt. I set a trigger so that when the screen is turned off, the brightness is set to 50%.
Why trigger when the screen is off instead of when the screen hits above 59%? If you have this same problem, hold the brightness and go all the way until the screen blanks and then still holding your finger on the screen, move it all the way to the left and you will notice that the screen did not come back on. Press the power button once to turn it off and then again to turn it on and you will see the screen at the lowest brightness setting.
So, with the trigger in place, if you accidentally (or one of your rotten kids intentionally:angel raises the brightness above the threshold, simply press the power once to turn off the screen and then press it again to turn the screen on.
Just a note, I ended up installing AutomateIt Pro, Available for $1.60 from the Play Market. The free version works fine, but my girlfriend has been struggling with this issue for a couple of months and after so many hard resets, the little app is more than worth the money.
Have you tried Power + Volume Down for 15 seconds, and then leaving it alone for one minute? It will cold boot. Try that and it may work. Just saying; Hope it will help
Sorry for the necro-bump but here's the actual solution.
Problem: The video cable inside the Transformer comes loose and just needs to be pushed back in.
I can't post a link since I don't have 10 posts yet so just search youtube for the following key words:
blank or no display issue on the asus transformer - fix
The user who posted the video is DoCWaSaBe
Tokyudo said:
Sorry for the necro-bump but here's the actual solution.
Problem: The video cable inside the Transformer comes loose and just needs to be pushed back in.
I can't post a link since I don't have 10 posts yet so just search youtube for the following key words:
blank or no display issue on the asus transformer - fix
The user who posted the video is DoCWaSaBe
Click to expand...
Click to collapse
Just fixed my blank display problem on a TF101 which is well out of warranty. Here is the link. I found the connector loose after dropping my TF101.
Thanks!
Fix lasted for a few days, now backlight dead, tried all cables again. No joy . I hate intermittent faults so ordered a Samsung Galaxy TabPRO 10.1.
I replaced my digitizer with a white one. Now when I wake my phone, the digitizer takes around 12 seconds before responding. Everything works fine after the initial 12 seconds except for the right side of the screen (front camera onwards) still being unresponsive. On a CM9 rom, I was able to enable 'Show Touches' and noticed that the right side of the screen is filled with 'touches' for the first 12 seconds then disappears.
I have tried flashing different ROMs and kernels with no success. I think this is a faulty digitizer problem.
I moved on to modifying the kernel as a workaround to the problem. Using the stock hidden menu, I determined that the cutoff was at around 415px. I tried changing the 'LGE_TOUCH_RESOLUTION_X' to '415' in '/kernel/arch/arm/mach-tegra/include/nvodm_touch.h' hoping to completely disable that part of the screen. From the dmesg log, it looks like the touchscreen initialization is spending excessive time in the 'tegra_touch_thread' function defined in '/kernel/drivers/input/touchscreen/tegra_odm_touch.c'.
Are there any developers out there that can offer any further insight or suggestions towards this problem? I can deal with the right screen being unresponsive but I would like to fix the initial delay.
Wow crazy. I had that same issue when I first got this phone. The screen would spaz out for a few seconds with many touches so I couldn't unlock it, and the right most edge wouldn't work. Once I replace it I never had the problem since.
Maybe the digitizer was faulty in the first place. That's my guess. Sounds identical to my issue. Can't say if the guy I bought it from dropped it or replaced it with a faulty digitizer.
So my TF700 is becoming difficult to use due to areas on the screen not responding to touch. It works fine for a few hours after power on. After a few hours the center of the screen doesn't respond at all. About 2 inches on the sides respond, but very slow and unresponsive. I used to leave it on all the time, but now I only turn it on when needed so it can be used. Any thoughts?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
Hmm, I had exact the same issue. Only 1/3 part of the screen was responding to touched. But I also two cracks under the screen, not sure if they were related.
Anyhow, seems like a warranty issue. In my case I tired to reset it, but it didn't help.
i had similar issue with keyboard dock, i noticed it lost response when i open the tab away too far. I did a quick check and went into settings->developer options and enabled visual response to touch. And there it was, a white ghost dot just up and left from the center of screen. Turning screen off and back on fixed the issue.
On further testing i found that if you squeeze the black rim section at the point of about midway between the left dock lock and the wire connector, it creates the ghost input at the top left of screen. on/off screen resets back to normal. Most likely glass design causes touch detection when glass is bent a bit from outside the screen. So basically don't squeeze on the black rim too much and dont fold open with too much force while docked.
This was quite often the first 2 months, but now my dock connector hinge became much more soft and the problem almost never happens.