Bug 4930

Summary: Display corruption and freezing
Product: xorg Reporter: Simon Morgan <freedesktop.domain.sjmorgan>
Component: Driver/nVidia (open)Assignee: Xorg Project Team <xorg-team>
Status: RESOLVED INVALID QA Contact:
Severity: critical    
Priority: high    
Version: 6.8.2   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Xorg log
none
Xorg configuration none

Description Simon Morgan 2005-10-30 10:46:10 UTC 
After running the server for a (seemingly arbitrary) length of time, parts of
the screen will begin to be replaced by white blocks. This will continue until
Xorg freezes completely apart from the mouse cursor. I don't experience this
with the closed source "nvidia" driver.
Comment 1 Simon Morgan 2005-10-30 10:47:05 UTC 
Created attachment 3662 [details]
Xorg log
Comment 2 Simon Morgan 2005-10-30 10:47:35 UTC 
Created attachment 3663 [details]
Xorg configuration
Comment 3 Adam Jackson 2005-10-31 08:36:46 UTC 
do you experience this corruption with XAA disabled?
Comment 4 Simon Morgan 2005-10-31 14:20:49 UTC 
It doesn't look like it. I've been using it for a few hours now and I think it's 
safe to say that I would have seen the display corruption/freezing if it was 
enabled.
Comment 5 Adam Jackson 2005-11-01 14:05:12 UTC 
can you narrow it down to a particular XAA code path?  see the various
"XaaNo..." options in the xorg.conf man page.
Comment 6 Simon Morgan 2005-11-06 13:02:05 UTC 
XaaNoOffscreenPixmaps seems to stop the problem.
Comment 7 Adam Jackson 2005-11-12 14:27:41 UTC 
your log shows that you're still loading libglx.so from nvidia's closed driver.
 you should probably restore Xorg's libglx.

also, try artificially reducing the amount of VRAM the driver utilized with the
VideoRAM option.  it may be that either you have bad vram or that the nv driver
has a bug accessing high memory locations.
Comment 8 Simon Morgan 2005-11-12 16:42:31 UTC 
Well I completely removed the nvidia-glx package which resulted in the X.org
version of the library being loaded (I checked to make sure) and I still got
display corruption. I'll try your VideoRAM suggestion.
Comment 9 Simon Morgan 2005-11-12 16:52:05 UTC 
I tried setting:

VideoRAM 65536

in my xorg.conf, but I still get:

(--) NV(0): VideoRAM: 131072 kBytes

in Xorg.0.log. Does this mean X is actually using that much VRAM?
Comment 10 Erik Andren 2006-05-21 18:52:43 UTC 
Are you still experiencing this bug with a current version of xorg?
Comment 11 Simon Morgan 2006-05-21 19:08:58 UTC 
No, but then again it's been so long since I filed the bug that I'm not even 
using the same system I was when I filed the bug.
Comment 12 Erik Andren 2006-05-21 19:15:06 UTC 
Closing as there are no hardware to reproduce this bug on.

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