Bug#939941: Adding details to bug #939941

[JB]

Here is an excerpt of dmesg after a reboot ; as you can see, it does not "flood" anymore the ttys with the "NVRM: Xid ... " error but still, I got several of them when booting up.

sudo dmesg | grep NVRM
[    3.050208] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  418.74  Wed May  1 11:49:41 CDT 2019
[   59.635526] NVRM: GPU at PCI:0000:01:00: GPU-f0e782b4-4a3b-7bc5-6030-fd3d1d9afa12
[   59.635541] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 0000031c
[   67.836608] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 0000031d
[   76.024961] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 0000031e
[   84.215000] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 0000031f
[   92.405456] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 00000320
[  100.596350] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 00000321
[  108.787424] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 00000322
[  116.978757] NVRM: Xid (PCI:0000:01:00): 16, Head 00000002 Count 00000323

According to this link (https://docs.nvidia.com/deploy/xid-errors/#topic_4), this error refers to a driver error which causes the display engine to hang, which seems to be exactly what's affecting my system.

I could try to purge the package nvidia-driver and going back to nouveau to see if that works ; let me know if that's something you would be interested in, or if I could provide any other detail to help.

Cheers,

JB