+1 w.r.t. to O.S. version. IIRC config.txt "rotations" no longer "operated" in Bullseye (onwards) and Screen Editor/Layout settings need to be adjusted instead as I did here: https://www.cpmspectrepi.uk/raspberry_p ... ower_CableWhat version of the OS are you using? It's sounds like Bookworm, so pretty recent, but that has always used /boot/formware/config.txt so I would have expected you to have had to use that a couple of weeks ago.Please stop doing updates that mess with the official touchscreen!
I have a Raspberry PI4 4GB with official touchscreen. All was working fine until updating (sudo apt upgrade) a couple of weeks ago when the touch panel was rotated 180 deg without warning - after adding lcd_rotate=2 and rotating the display in desktop all was working again.
Now, this morning after updating again, the touch panel was rotated 180 deg but the display was fine, so I tried to edit /boot/config.txt to find it was no longer there and is now /boot/firmware/config.txt, so edited that the lcd_rotate=0 and guess what...the display does not even turn on regardless of what I change lcd_rotate= to. I can't even find the backlight location to try and switch it on that way (used to be '/sys/class/backlight/rpi_backlight/bl_power', then '/sys/class/backlight/10-0045/bl_power', now I have no idea). The Pi boots as I can connect using SSH.
Is there anywhere to find release notes for updates that are done using 'sudo apt upgrade'? This might help identify the problem. Any other suggestions would be great.
(I haven't had the opportunity to retest with Bookworm or the P5 yet - 'though I now have a P5 display cable )
Trev.
Statistics: Posted by FTrevorGowen — Fri Feb 02, 2024 6:14 pm