Hi,
Thanks to everyone who developed this great software.
Please excuse my poor English.
I encountered a similar problem.
I will post what I have tried.
I also installed 9.0.1 onto my Pi-4B 1.4 8GB with RPi 7" display using the RPi imager.
I set "Rotate screen" to "180 Deg", and the screen rotated correctly immediately after startup, but the screen became upside down during startup.
I did the same thing by adding
"video=DSI-1:800x480@60,rotate=180"
to the end of /boot/firmware/cmdline.txt, and it started to display normally, but the touch operation was not correct.
I modified /boot/firmware/config.txt using this URL as a reference.
After modifying cmdline.txt and config.txt as above, the display and touch operation became normal.
If you do not set "Rotate screen" to "180 Deg" and modify cmdline.txt and config.txt as above, the display will be correct from the middle of startup and touch operation will also be normal.
I hope this reply is helpful.
Thanks to everyone who developed this great software.
Please excuse my poor English.
I encountered a similar problem.
I will post what I have tried.
I also installed 9.0.1 onto my Pi-4B 1.4 8GB with RPi 7" display using the RPi imager.
I set "Rotate screen" to "180 Deg", and the screen rotated correctly immediately after startup, but the screen became upside down during startup.
I did the same thing by adding
"video=DSI-1:800x480@60,rotate=180"
to the end of /boot/firmware/cmdline.txt, and it started to display normally, but the touch operation was not correct.
I modified /boot/firmware/config.txt using this URL as a reference.
Code:
dtoverlay=vc4-kms-v3d
dtoverlay=vc4-kms-dsi-7inch,invx,invy # <- add this line.
MAX_framebuffers=2
#display_auto_detect=1 # <- comment out this line.If you do not set "Rotate screen" to "180 Deg" and modify cmdline.txt and config.txt as above, the display will be correct from the middle of startup and touch operation will also be normal.
I hope this reply is helpful.
