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touchscreen problem - dead row

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chris_toffer
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(Last edited by chris_toffer; 7th April 2014 at 09:46 AM.) Reason: attachments added
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Default touchscreen problem - dead row

Hi,

my Atrix is behaving strange lately, but i just don't want to let go my old lady... so anyone has any idea re. root-cause of the problem?

situation
i got aware that the touchscreen had stopped working for a particular row, next to the volume control buttons. for me, it's been clear: hardware failure.
i wanted to see the symptoms in detail, hence installed a diagnostic app to check the touchscreen and identify the "dead zone" properly.
SCREENSHOT #1


but
when playing around, in the endeavor to paint all my screen blue, swiftly swiping my finger across the touchscreen. after a while, the phone's reactions became sluggish, and the home/back buttons would not bring me back to my home screen. so i switched the dialogs off and on again (power button). and the home/back buttons returned to work fine.

BUT
to my utmost surprise, the touchscreen problem had gone!! no more dead areas in the touchscreen!
SCREENSHOT #2


only after a while, the problem returns and the very same row is dead again regarding touch inputs.

Amazing! and this is fully reproducible! it's necessary for the app to react sluggishly (which is only randomly achieved), and the home/back buttons to stop working, to temporarily 'heal' the touchscreen.

So it's not a hardware, but software problem?
what's your opinion?

BTW, I am running a rooted stock release, european version, atrix 4g.

cheers
chris
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ravilov
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There are no screenshots in your post.
Also, there are plenty enough threads about this, was yet another one really necessary?
 
chris_toffer
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Default Problem Cause - Solution Approaches

OK, sorry. What's the solution: 1 - 2 - 3 below?

1) Sounds reasonable - bad contact in a connector:
Emerging Hardware Issue: Touch Screen Dead Zones

2) This does not help a lot. Seems only for custom ROMs:
touchscreen is off only at the bottom of the screen

3) That's not very helpful - there's no description what the idea behind this mod is.
see: Touchscreen - Dead Spot Quick Fix
 
palmbeach05
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Quote:
Originally Posted by chris_toffer View Post
OK, sorry. What's the solution: 1 - 2 - 3 below?

1) Sounds reasonable - bad contact in a connector:
Emerging Hardware Issue: Touch Screen Dead Zones

2) This does not help a lot. Seems only for custom ROMs:
touchscreen is off only at the bottom of the screen

3) That's not very helpful - there's no description what the idea behind this mod is.
see: Touchscreen - Dead Spot Quick Fix
4) Do what most of us have done, which is replace digitizer or replace device completely
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