Bug 22786 - NV30: X hangs with KMS enabled in certain cases
Summary: NV30: X hangs with KMS enabled in certain cases
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/nouveau (show other bugs)
Version: 7.4 (2008.09)
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Nouveau Project
QA Contact: Xorg Project Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-07-15 12:24 UTC by Patrice Mandin
Modified: 2009-08-16 05:11 UTC (History)
0 users

See Also:
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Description Patrice Mandin 2009-07-15 12:24:42 UTC 
- With Option "EXAPixmaps" "on"

When enabled, X simply hangs at startup, just get a black screen with visible mouse cursor.

- With Mesa/gallium nv30 backend (I know, unsupported, just in case it is the same issue):

progs/trivial/tri hangs X somewhere in libdrm. gdb show me it is when nouveau_pushbuf_flush() is called. The specific instruction seems to be drmCommandWrite(..., DRM_NOUVEAU_GEM_PUSHBUF, ...). Not the first time it is called, but the 3rd or 4th.

In both cases, disabling agp (nouveau.noagp=1) makes no change, X still hangs.
Comment 1 Patrice Mandin 2009-07-30 10:46:32 UTC 
- No more X hang when running some Mesa application, with latest git (20090730) for everything. Will try a bit later EXAPixmaps option.
Comment 2 Patrice Mandin 2009-08-16 05:11:38 UTC 
Enabling Option "EXAPixmaps" "on" in xorg.conf does not hang X anymore. So I suppose it is fixed (or else it is disabled for hardware that may cause problems?).

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