Nouveau frequently crashes when hovering over taskbar in KDE Plasma 5
Submitted by Nathan Ridge
Assigned to Nouveau Project
Link to original bug (#105260)
Description
I am experiencing a frequent freeze of my entire graphics session, from which I can only recover by restarting by display manager.
The freeze always occurs when hovering over a taskbar entry and a thumbnail image of the corresponding window is shown, although I can't reliably reproduce the freeze every time I perform such a hover.
The following output appears in dmesg whenever this happens:
[425014.691684] nouveau 0000:01:00.0: gr: TRAP ch 2 [003fc60000 Xorg[16428]] [425014.691694] nouveau 0000:01:00.0: gr: GPC0/TPC0/TEX: 80000049 [425014.691697] nouveau 0000:01:00.0: gr: GPC0/TPC1/TEX: 80000049 [425014.691715] nouveau 0000:01:00.0: fifo: read fault at 0002b70000 engine 00 [PGRAPH] client 01 [GPC0/TEX] reason 02 [PAGE_NOT_PRESENT] on channel 2 [003fc60000 Xorg[16428]] [425014.691716] nouveau 0000:01:00.0: fifo: gr engine fault on channel 2, recovering... [425014.691911] nouveau 0000:01:00.0: Xorg[16428]: channel 2 killed! [425014.692071] nouveau 0000:01:00.0: gr: TRAP ch 9 [003f93c000 plasmashell[16602]] [425014.692080] nouveau 0000:01:00.0: gr: GPC0/TPC0/TEX: 80000049 [425014.692083] nouveau 0000:01:00.0: gr: GPC0/TPC1/TEX: 80000049 [425014.692092] nouveau 0000:01:00.0: fifo: read fault at 0001500000 engine 00 [PGRAPH] client 01 [GPC0/TEX] reason 02 [PAGE_NOT_PRESENT] on channel 9 [003f93c000 plasmashell[16602]] [425014.692094] nouveau 0000:01:00.0: fifo: gr engine fault on channel 9, recovering... [425014.692301] nouveau 0000:01:00.0: plasmashell[16602]: channel 9 killed!
I am running Debian 9, with the KDE desktop environment (Plasma 5.8). My kernel version is 4.14.
Please let me know if there is any other information I can provide to help diagnose the issue.
Version: 13.0