After booting my laptop with kernel 5.10, after a fixed time of 1-2 minutes (laptop and system is fully usable in this time), suddenly the system crashes and the laptop reboots (not like shutting down and reboot, but like pressing the “reset button”). This is reproducible and happens on every (re)boot.
If I select the kernel 5.4 in grub, the laptop is booting and usable without any crash, but the light display manager does not start and startxfce4 doesn’t work, either. So I’m stuck at the command line.
If I boot with FreeDOS or Knoppix 9.1, there is no crash.
The problem has started after an update and opening the setup/efi/bios but changing nothing. Resetting the setup to default didn’t solve the problem. I suspect the Nvidia update to 495 causing the problems. But they also occur if I use the internal AMD Radeon graphic card (I can switch with optimus-manager --switch nvidia, but only with 5.10.79. With 5.4.159, it is not working). If I boot Manjaro, the default is AMD.
Nethertheless, I tried to downgrade Xorg. But if I enter downgrade xorg-server and select an old version, I get conflicting packages (xf86-input-elographics, xf86-input-evdev, xf86-input-void,xf86-video-amdgpu etc). Are they safe to remove?
This post already includes a link to a support thread. I’m posting here, too, because it is an issue that is related to this update.
IMHO downgrading is one possible thing you can do in troubleshooting: If it is working afterwards, you can use the computer again and you know which software causes the issue. This information could be helpful to solve the problem with the most current packages, too.
Because I didn’t manage to fix this important issue, even with the help of the Manjaro community, I decided to switch to another Linux distribution that is more stable. The caveat is that stable distros often have old software. But with Flatpak and Snap this problem (hopefully) can be circumvented.