[Bug 40111] New: Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[Bug 40111] New: Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

           Summary: Heavy flickering in XBMC with Gallium r600, but not
                    with classic Mesa
           Product: Mesa
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: timo.jyrinki@hut.fi


With Mesa 7.11, there is a heavy flickering in XBMC 10.1 (xbmc.org) right from
the start. I found out a remark 73 at http://www.x.org/wiki/RadeonProgram
mentioning the same from February, and it seems to hold true still.

With classic mesa r600 everything seems to work without problems, including
GLSL output shaders.

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[Bug 40111] Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

--- Comment #1 from Michel Dänzer <michel@daenzer.net> 2011-08-16 01:41:00 PDT ---
I don't see any flickering with r600g from current Mesa Git master. If you can
still reproduce it with that, please provide detailed reproduction steps and
attach Xorg.0.log.

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[Bug 40111] Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

--- Comment #2 from timo.jyrinki@hut.fi 2011-08-16 03:47:27 PDT ---
Created an attachment (id=50261)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=50261)
Xorg.0.log

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[Bug 40111] Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

--- Comment #3 from timo.jyrinki@hut.fi 2011-08-16 03:52:19 PDT ---
Same problem with Ubuntu/xorg-edgers provided
7.12.0~git20110811.9cd64ec3-0ubuntu0sarvatt~natty, both with compiz+Unity and
with metacity.

Steps:
1. Have Ubuntu 11.04 or equivalent, x86_64, Radeon HD 4670, latest mesa with
r600 gallium
2. Install XBMC 10.1 from for example
http://ppa.launchpad.net/timo-jyrinki/ppa/ubuntu/pool/main/x/xbmc/
3. Launch xbmc - immediate full screen flickering (between correct main menu
image and black screen, ca. 5-30 fps depending on what's being redrawn)

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[Bug 40111] Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #50261|text/x-log                  |text/plain
          mime type|                            |

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[Bug 40111] Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

--- Comment #4 from Michel Dänzer <michel@daenzer.net> 2011-08-16 10:33:11 PDT ---
Does the problem go away if you disable page flipping? (check in Xorg.0.log
that it's actually disabled)

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[Bug 40111] Heavy flickering in XBMC with Gallium r600, but not with classic Mesa

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=40111

timo.jyrinki@hut.fi changed:

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

--- Comment #5 from timo.jyrinki@hut.fi 2011-08-17 01:29:18 PDT ---
I reverted to stable ati/mesa/libdrm releases after noticing that latest git
doesn't help. But now for testing the flipping option I installed again the
latest build available, and lo and behold, the flickering is gone also with
gallium and without changing any settings! Naturally just when I report a bug,
something between git20110811.9cd64ec3 and git20110816.5e7713ca fixes it. I see
that there is a whole lot of r600g commits there.

So, fixed! And if I find out some magic to make it flicker it again, I'll
report it.

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