REPRODUCIBILITY: always
OS VERSION: 5.0.0.72
HARDWARE: Xperia X10 II
UI LANGUAGE: German
REGRESSION: yes
DESCRIPTION:
Once an overlay is shown like when a call is active or a reminder for an appointment triggers, the screen stays blank. And it does not accept swipes or presses.
With a reminder, this can be remedied by pressing the button three times.
During a call there is no way out I've found, so it is critical.
PRECONDITIONS:
This started happening after the upgrade to 5.0.0.71.
STEPS TO REPRODUCE:
initiate a call
(alternatively) create an appointment with a reminder and wait until it fires
EXPECTED RESULT:
The overlay with the reminder or call information should be shown and accept swipes or presses.
ACTUAL RESULT:
Blank screen.
MODIFICATIONS:
ADDITIONAL INFORMATION:
The situation stays the same after a reboot.
Running CSD, the proximity sensor tests fails. It shows the proximity sensors always as ācoveredā (though there is nothing covering the facing side of the phone).
I had that issue long ago. Donāt remember exactly how it turned out. IIRC I restarted deamon when that happened (sensor stuck). Sometimes triple power button push helped temporarily also.
No other ideas than this:
Do you have any dust if you use display protection?
Thereās also a slight possibility of sensor or connector failure.
And I really doubt that this would help anyway. As that bug was common for some back in a day.
Because the sensor āfailureā was within a day of the upgrade, Iād expect that there is a good chance that the upgrade contributed or even is fully responsible for it.
Just noticed exactly the same problem, I couldnāt exit out of a call. It appears to be ācausedā by having enabled the LPM screen. More precisely, if you have set
mcetool --set-ps-on-demand=disabled
which is necessary for the LPM screen to work, the proximity sensor breaks. But if you change the setting to
mcetool --set-ps-on-demand=enabled
the proximity sensor works as expected again. Strange.