Disturbed screen after boot on XZ3

[rinigus]

Reported by Pasik2 at https://forum.sailfishos.org/t/xperia-tama-port-aosp10-aarch64-release/7118

Rarely, on boot, screen is completely disturbed by some pixelated image (https://forum.sailfishos.org/t/xperia-tama-port-aosp10-aarch64-release/7118/15). The only thing that helps is to force shutdown by holding power button for a while and boot again.

Issue is filed to document the issue, no idea regarding how to fix it. As it is rare, no research is planned to fix it at this moment.

References:

• https://forum.sailfishos.org/t/xperia-tama-port-aosp10-aarch64-release/7118/15
• https://forum.sailfishos.org/t/xperia-tama-port-aosp10-aarch64-release/7118/18

[pagism]

I have experienced such pixelated screen on the first boot after flashing the device. I have flashed the device two times, for another reason, and both times I got that pixelated screen which come after the initial sony unlock device warning message. The pixelated screen lasted for few seconds without affecting the booting procedure, no other intervention required. I believe that's the SONY or SFOS splash screen that got pixelated.

Then I had an issue, I guess digitizer(?) not responding to screen touch, that was fixed with simple turn off/on the screen. After that I have not experienced any pixelation or digitizer issues, and the device was rebooted many times.