Comment 8 for bug 1526657

Well, I am not a strong graphical software user. Most of the time I am using gvim to edit program files. One of the times I had the problem I captured dmesg. Below you will see what I got (through ssh, I guess).

[Sat Nov 21 12:24:38 2015] nouveau E[ PFIFO][0000:01:00.0] read fault at 0x00024e0000 [PAGE_NOT_PRESENT] from PGRAPH/GPC0/TEX on channel 0x001fb0e000 [gnome-shell[1611]]
[Sat Nov 21 12:24:38 2015] nouveau E[ PFIFO][0000:01:00.0] PGRAPH engine fault on channel 5, recovering...
[Sat Nov 21 12:24:38 2015] nouveau E[ PGRAPH][0000:01:00.0] TRAP ch 5 [0x001fb0e000 gnome-shell[1611]]
[Sat Nov 21 12:24:38 2015] nouveau E[ PGRAPH][0000:01:00.0] GPC0/TPC0/TEX: 0x80000049
[Sat Nov 21 12:26:22 2015] nouveau E[Xorg[1082]] failed to idle channel 0xcccc0000 [Xorg[1082]]
[Sat Nov 21 12:26:37 2015] nouveau E[Xorg[1082]] failed to idle channel 0xcccc0000 [Xorg[1082]]
[Sat Nov 21 12:26:37 2015] nouveau E[ PFIFO][0000:01:00.0] read fault at 0x000001b000 [PAGE_NOT_PRESENT] from PFIFO/BAR_READ on channel 0x001fc7e000 [unknown]
[Sat Nov 21 12:27:26 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0002 [Xorg[13885]]
[Sat Nov 21 12:27:41 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0002 [Xorg[13885]]
[Sat Nov 21 12:27:56 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0002 [Xorg[13885]]
[Sat Nov 21 12:27:57 2015] nouveau E[gnome-shell[1611]] failed to idle channel 0xcccc0000 [gnome-shell[1611]]
[Sat Nov 21 12:28:11 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0002 [Xorg[13885]]
[Sat Nov 21 12:28:12 2015] nouveau E[gnome-shell[1611]] failed to idle channel 0xcccc0000 [gnome-shell[1611]]
[Sat Nov 21 12:28:26 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0002 [Xorg[13885]]
[Sat Nov 21 12:28:41 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0002 [Xorg[13885]]
[Sat Nov 21 12:28:56 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0001 [Xorg[13885]]
[Sat Nov 21 12:29:11 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0001 [Xorg[13885]]
[Sat Nov 21 12:29:26 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0001 [Xorg[13885]]
[Sat Nov 21 12:29:41 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0000 [Xorg[13885]]
[Sat Nov 21 12:29:56 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0000 [Xorg[13885]]
[Sat Nov 21 12:30:11 2015] nouveau E[Xorg[13885]] failed to idle channel 0xcccc0000 [Xorg[13885]]