Now that your system is working again, could you make some more tests?
Here are 4 alternative rules for your file /etc/udev/rules.d/71-nvidia.rules. Could you please test each of them and see if your system breaks?
First alternative (should work): SUBSYSTEM=="drm", KERNEL=="card[0-9]*", TAG+="master-of-seat"
Second alternative: SUBSYSTEM=="drm", KERNEL=="card[0-9]*", ATTRS{vendor}=="0x10de", TAG+="master-of-seat"
Third alternative: SUBSYSTEM=="drm", KERNEL=="card[0-9]*", DRIVER=="nvidia", TAG+="master-of-seat"
Fourth alternative: SUBSYSTEM=="drm", KERNEL=="card[0-9]*", ATTRS{vendor}=="0x10de", DRIVER=="nvidia", TAG+="master-of-seat"
Now that your system is working again, could you make some more tests?
Here are 4 alternative rules for your file /etc/udev/ rules.d/ 71-nvidia. rules. Could you please test each of them and see if your system breaks?
First alternative (should work): ="card[ 0-9]*", TAG+="master- of-seat"
SUBSYSTEM=="drm", KERNEL=
Second alternative: ="card[ 0-9]*", ATTRS{vendor} =="0x10de" , TAG+="master- of-seat"
SUBSYSTEM=="drm", KERNEL=
Third alternative: ="card[ 0-9]*", DRIVER=="nvidia", TAG+="master- of-seat"
SUBSYSTEM=="drm", KERNEL=
Fourth alternative: ="card[ 0-9]*", ATTRS{vendor} =="0x10de" , DRIVER=="nvidia", TAG+="master- of-seat"
SUBSYSTEM=="drm", KERNEL=