Today I switched to an Xorg-based GNOME session, and found out that
invoking `xset dpms force off` also results in the system freezing.
Interestingly, the system was responsive via ssh for another couple seconds
or so.
So I think this regression must be related to the kernel version change
more than anything else. Reassigning the bug.
Again, I'd be more than happy to do whatever is needed to investigate this
deeper. The only idea comes to mind is to try and bisect the kernel history
between 5.10.179-2 and 6.1.38-4, but I'm not sure how feasible it is these
days (it's been almost two decades since I last built my own kernel package
and don't know what config to use between these two versions).
