Nouveau - Sep 2007 - [Bug 12520] New: EXA greedy mode corruption

http://bugs.freedesktop.org/show_bug.cgi?id=12520

           Summary: EXA greedy mode corruption
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: castet.matthieu at free.fr
         QAContact: xorg-team at lists.x.org


Hi,

when using EXA greedy mode, there corruption on mozilla (see attached
screenshot).

This appeared with xserver-xorg-core 2:1.4-2 from debian unstable
(http://packages.debian.org/changelogs/pool/main/x/xorg-server/xorg-server_1.4-2/changelog)

Also there some instability (random X crash).


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------- Comment #1 from castet.matthieu at free.fr  2007-09-22 05:58 PST -------
Created an attachment (id=11682)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11682&action=view)
EXA corruption


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------- Comment #2 from castet.matthieu at free.fr  2007-09-22 06:00 PST -------
Created an attachment (id=11683)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11683&action=view)
xorg log


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tilman at code-monkey.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Driver/nouveau              |Acceleration/EXA




------- Comment #3 from tilman at code-monkey.de  2007-09-22 08:40 PST -------
This bug isn't nouveau specific. It's either a bug in EXA or in pixman.
I'm not
sure which, so I'll assign it to EXA for now :p


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------- Comment #4 from swanson at ukfsn.org  2007-09-23 08:49 PST -------
The corruption also appears when using EXA "greedy" with Gnome
Nautilus. Any
redraws for background damage after moving or closing a window, the damage is
always drawn using top left (0,0) of the background. Switching to EXA
"always"
fixes problem.

This is on a R200 running xorg-server 1.4 release and xf86-video-ati current
GIT so definitely not a Nouveau issue. Note bug still assigned to Nouveau
Project project though.


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marchesin at icps.u-strasbg.fr changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nouveau at lists.freedesktop.or
                   |                            |g
         AssignedTo|nouveau at lists.freedesktop.or|xorg-team at lists.x.org
                   |g                           |




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------- Comment #5 from michel at tungstengraphics.com  2007-09-24 03:40 PST
-------
The fallback case in exaFillRegionSolid needs to be fixed to use something else
than fbFillRegionTiled, so the GC is taken into account properly. Any takers?


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------- Comment #6 from michel at tungstengraphics.com  2007-09-26 00:48 PST
-------
Created an attachment (id=11757)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11757&action=view)
Probable fix, against server-1.4-branch

Does this patch fix it?


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------- Comment #7 from tilman at code-monkey.de  2007-09-26 08:10 PST -------
I tested the master branch by adding
  pPatOrg->x != 0 || pPatOrg->y != 0
to the condition which fixes the issues for me.


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michel at tungstengraphics.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
OtherBugsDependingO|                            |12560
              nThis|                            |




------- Comment #8 from michel at tungstengraphics.com  2007-09-27 04:42 PST
-------
Fixed on the master and no-pci-rework branches. Leaving this open though and
making it a blocker for 1.4.1 so it'll hopefully end up there.


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------- Comment #9 from castet.matthieu at free.fr  2007-09-30 07:49 PST -------
Debian xorg-server (2:1.4-3) works fine. It got the fix :
  * Add 08_exa_fix_exaFillRegionTiled_fallback.diff by Michel D??nzer to punt
    on fallback case not handled correctly in exaFillRegionTiled (backported
    from master's c7d6d1f5); closes: #444203.


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daniel at fooishbar.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Comment #10 from daniel at fooishbar.org  2007-11-17 13:41 PST -------
fixed in 1.4 branch


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