Red Hat Bugzilla – Bug 966762
screen, corruption, slow drawing, gnome hangs, general suck (dirty like zebra)
Last modified: 2015-02-17 10:19:30 EST
Created attachment 752402 [details]
/var/log/messages, /var/log/X.org.0, and dmesg output
Description of problem:
I've got an NV44 graphics card in a dual head config on my desktop workstation. The display output sort of works, but performance is suboptimal, there is intermittent screen corruption, and gnome hangs in weird ways. Kernel dmesg shows some interesting stuff:
[ 46.528555] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 3 [gnome-shell] subc 7 mthd 0x1718 data 0x00000000
[ 46.528566] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 3 [gnome-shell] subc 7 mthd 0x1718 data 0x00000000
[ 46.528578] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 3 [gnome-shell] subc 7 mthd 0x1808 data 0x00000008
[ 46.528589] nouveau E[ PFIFO][0000:01:00.0] CACHE_ERROR - ch 3 [gnome-shell] subc 7 mthd 0x1814 data 0x03000000
And so on. Same message, same process (gnome-shell). There's a lot more of it though.
Version-Release number of selected component (if applicable):
If you need versions of anything else, let me know. I can also provide remote access to Red Hat employees.
Happens all the time with the current software set.
Steps to Reproduce:
1. login to gnome
2. try to use X
screen corruption, artifacts, slow drawing
no screen corruption, no artifacts, fast drawing
please check if the latest libdrm helps this.
Ack. I will give it a try in the next day or two.
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