Josef, did you try the workaround in the original post? The workaround fixed the problem for me on Ubuntu 22.10.
------------
[ Workaround ]
Add to /etc/environment (in Ubuntu 22.04):
MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0
or in Ubuntu 22.10 and later:
MUTTER_DEBUG_FORCE_KMS_MODE=simple
and then reboot.
------------
Full instructions:
1. Open terminal: CTRL + ALT + T
2. Type: sudo nano /etc/environment
3. Enter your password
4. Add the following on a new line: MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0
5. Press: Ctrl + O
6. Press: Enter
7. Press: Ctr + X
8. Type: Reboot
Josef, did you try the workaround in the original post? The workaround fixed the problem for me on Ubuntu 22.10.
------------
[ Workaround ]
Add to /etc/environment (in Ubuntu 22.04):
MUTTER_ DEBUG_ENABLE_ ATOMIC_ KMS=0
or in Ubuntu 22.10 and later:
MUTTER_ DEBUG_FORCE_ KMS_MODE= simple
and then reboot.
------------
Full instructions:
1. Open terminal: CTRL + ALT + T DEBUG_ENABLE_ ATOMIC_ KMS=0
2. Type: sudo nano /etc/environment
3. Enter your password
4. Add the following on a new line: MUTTER_
5. Press: Ctrl + O
6. Press: Enter
7. Press: Ctr + X
8. Type: Reboot