[Bug 42913] New: r600g: glx-swap-pixmap causes screen corruption

[Bug 42913] New: r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

             Bug #: 42913
           Summary: r600g: glx-swap-pixmap causes screen corruption
    Classification: Unclassified
           Product: Mesa
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: debian@carbon-project.org


First: I don't think this is bug 40610 because I don't see a crash but screen
corruption and (sometimes) the following lines in dmesg:
> radeon 0000:01:00.0: r600_check_texture_resource:1346 texture invalid format 0
> [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !

But I'm no Mesa/Piglit expert, so my assumption might be wrong.

The Piglit test itself fails, the output is:
> Probe at (0,0)
>  Expected: 0.000000 1.000000 0.000000 0.000000
>  Observed: 0.000000 0.000000 1.000000 1.000000

Used stack:
Mesa: Git/9ae10e9c
libdrm: 2.4.27-1
Kernel: 3.1.1
X.org: 1.11.1.902-1

Let me know, if you need more information.

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[Bug 42913] r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

--- Comment #1 from Kai <debian@carbon-project.org> 2011-11-15 08:38:49 PST ---
Todays run showed one difference in what was reported by Piglit:
> Probe at (0,0)
>   Expected: 0.000000 1.000000 0.000000 0.000000
>   Observed: 0.000000 0.000000 0.000000 1.000000
> PIGLIT: {'result': 'fail' }
apart from that, the screen is still corrupted (a KDM restart fixes the screen
again; also non-X TTYs aren't affected either).

Used stack:
Mesa: Git/9d4d9d34
libdrm: 2.4.27-1
Kernel: 3.1.1
X.org: 1.11.1.902-1

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[Bug 42913] r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

--- Comment #2 from Dave Airlie <airlied@freedesktop.org> 2011-11-15 09:34:49 PST ---
does xrandr to a new mode and back help?

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[Bug 42913] r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

--- Comment #3 from Kai <debian@carbon-project.org> 2011-11-15 11:47:33 PST ---
(In reply to comment #2)
> does xrandr to a new mode and back help?

Yes, that restores a normal screen. AFAICT there is no vestige of the
corruption left.

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[Bug 42913] r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

--- Comment #4 from Kai <debian@carbon-project.org> 2011-11-22 05:31:15 PST ---
The weekend's Piglit run showed the bug with Mesa git/03df791c.

Apart from that I noticed, that this bug was assigned to dri-devel and not
mesa-dev. Is that correct? This is, after all, most likely a bug in r600g and I
thought Gallium driver development happened on mesa-dev.

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[Bug 42913] r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

--- Comment #5 from Stefano Teso <stefano.teso@gmail.com> 2011-12-23 07:29:54 PST ---
> But I'm no Mesa/Piglit expert, so my assumption might be wrong.

I have the very same issue here on evergreen, 32-bit userland on i7; debian
unstable.

mesa: git 2eafd07323891944b9c012a17359cd5f07a87890 (cloned as of today)
libdrm: 2.4.29-1
kernel: 3.2-rc6
xorg: 1.11.2.902-1

(BTW, when using gnome-shell, the corruption is fixed automatically after half
a second or so; using fluxbox, the screen stays corrupted.)

HTH,

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[Bug 42913] r600g: glx-swap-pixmap causes screen corruption

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=42913

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
         AssignedTo|dri-devel@lists.freedesktop |xorg-driver-ati@lists.x.org
                   |.org                        |
          QAContact|                            |xorg-team@lists.x.org
            Product|Mesa                        |xorg
          Component|Drivers/Gallium/r600        |Driver/Radeon

--- Comment #6 from Michel Dänzer <michel@daenzer.net> 2011-12-28 04:26:33 PST ---
Fixed in xf86-video-ati Git ae45d7e6d8e6844cd4586c9ee97c21b257fa788f ('DRI2:
Can't use page flipping for pixmaps.').

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