[Nouveau] [Bug 86794] New: Several nouveau related errors with xf86-video-nouveau with NVIDIA G92 [GeForce 9800 GT] and GF108 [GeForce GT 620] (rev a1).

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86794

            Bug ID: 86794
           Summary: Several nouveau related errors with xf86-video-nouveau
                    with NVIDIA G92 [GeForce 9800 GT] and GF108 [GeForce
                    GT 620] (rev a1).
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: rose at rz.uni-potsdam.de
        QA Contact: xorg-team at lists.x.org

Almost once a day X11 hangs. An other issue is that the windows are moving more
ore randomly up and down (from foreground to background). Very often is at the
window position only a shadow of the window frame filled with the pattern of
the desktop background. 

If the desktop is hanging it is sometimes possible to switch to console with
ALT-CTL-F1, sometimes I have to login via ssh to check the log files. Often I
'dmesg' reports thne something like:
...
[175947.652266] nouveau E[   PFIFO][0000:01:00.0] read fault at 0x00014a2000
[PAGE_NOT_PRESENT] from PGRAPH/GPC0/TEX on channel 0x003fb74000
[gnome-shell[27277]]
[175947.652281] nouveau E[   PFIFO][0000:01:00.0] PGRAPH engine fault on
channel 5, recovering...
[175947.652315] nouveau E[  PGRAPH][0000:01:00.0] TRAP ch 5 [0x003fb74000
gnome-shell[27277]]
[175947.652331] nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC0/TEX: 0x80000049
[175947.652340] nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC1/TEX: 0x80000049
[176136.543763] nouveau E[Xorg[26420]] failed to idle channel 0xcccc0000
[Xorg[26420]]
[176151.552203] nouveau E[Xorg[26420]] failed to idle channel 0xcccc0000
[Xorg[26420]]
[176151.552337] nouveau E[   PFIFO][0000:01:00.0] read fault at 0x000001b000
[PAGE_NOT_PRESENT] from PFIFO/BAR_READ on channel 0x003fc60000 [unknown]
[176153.985794] nouveau E[     DRM] GPU lockup - switching to software fbcon


'journalctl -xb | grep -A 6 "NVIDIA\|NOUVEAU\|nouveau E"' says:
...
Nov 01 08:32:51 impala gdm-Xorg-:0[26420]: (II) NOUVEAU(0): Monitor name:
W3000H
Nov 01 08:32:51 impala gdm-Xorg-:0[26420]: (II) NOUVEAU(0): Monitor name:
Nov 01 08:32:51 impala gdm-Xorg-:0[26420]: (II) NOUVEAU(0): EDID (in hex):
Nov 01 08:32:51 impala gdm-Xorg-:0[26420]: (II) NOUVEAU(0):        
00ffffffffffff001e6dea754d810600
...
Nov 02 23:54:39 impala kernel: nouveau E[   PFIFO][0000:01:00.0] read fault at
0x00014a2000 [PAGE_NOT_PRESENT] from PGRAPH/GPC0/TEX on channel 0x003fb74000
[gnome-shell[27277]]
Nov 02 23:54:39 impala kernel: nouveau E[   PFIFO][0000:01:00.0] PGRAPH engine
fault on channel 5, recovering...
Nov 02 23:54:39 impala kernel: nouveau E[  PGRAPH][0000:01:00.0] TRAP ch 5
[0x003fb74000 gnome-shell[27277]]
Nov 02 23:54:39 impala kernel: nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC0/TEX:
0x80000049
Nov 02 23:54:39 impala kernel: nouveau E[  PGRAPH][0000:01:00.0] GPC0/TPC1/TEX:
0x80000049


If the the window is randomly shifted randomly up and down 'journal -xb'
reports
...
Nov 26 08:16:45 impala gnome-session[31470]: Fensterverwalter-Warnung:Buggy
client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0 for 0x320000d
(sshd_confi)
Nov 26 08:16:45 impala gnome-session[31470]:
Fensterverwalter-Warnung:meta_window_activate called by a pager with a 0
timestamp; the pager needs to be fixed.
...
Nov 26 08:22:57 impala gnome-session[31470]:
Fensterverwalter-Warnung:last_focus_time (49506834) is greater than comparison
timestamp (49506833).  This most likely represents a buggy client sending
inaccurate timestamps 
...



The errors are also file as gentoo bugs at
https://bugs.gentoo.org/show_bug.cgi?id=530780 and
https://bugs.gentoo.org/show_bug.cgi?id=528100.

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