[Bug 33790] New: [r300g] Black windows with opengl apps (ex. glxgears)

[Bug 33790] New: [r300g] Black windows with opengl apps (ex. glxgears)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=33790

           Summary: [r300g] Black windows with opengl apps (ex. glxgears)
           Product: Mesa
           Version: 7.10
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: dreamspepser@yahoo.it


Created an attachment (id=42786)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=42786)
related xorg log

Card: ATI Mobility Radeon x1600 (RV530)
OS: Arch Linux with official latest mesa 7.10
Other: xf86-video-ati 6.13.2 - xorg-server 1.9.3.901

Hi, i cannot get any opengl to work with r300g,
when i launch glxgears i get a black window with no output.

ltracing i notice it get stuck on a glClear call
$ ltrace glxgears
...
XPending(0x18e4010, 0x3f800000, 0x3f80000000000000, 0, 0) = 0
gettimeofday(0x7fff7a6ccad0, 0x7fff7a6ccb50) = 0
glClear(16640, 0x7fff7a6ccb50, 0x18e5778, -1, 1 <unfinished ...>

Mesa is build with
./configure --prefix=/usr \
    --with-dri-driverdir=/usr/lib/xorg/modules/dri \
    --disable-egl \
    --enable-gallium-radeon \
    --enable-gallium-nouveau \
    --enable-glx-tls \
    --with-driver=dri \
    --enable-xcb \
    --with-state-trackers=dri,glx \
    --disable-glut

as you can check here:
http://projects.archlinux.org/svntogit/packages.git/tree/mesa/trunk/PKGBUILD

7.9 is also affected by the same behaviour, as reported on archlinux forums:
https://bbs.archlinux.org/viewtopic.php?pid=886465

Thanks

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

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https://bugs.freedesktop.org/show_bug.cgi?id=33790

--- Comment #1 from Marek Olšák <maraeo@gmail.com> 2011-02-10 18:25:03 PST ---
Does the problem go away with the Mesa master branch?

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

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https://bugs.freedesktop.org/show_bug.cgi?id=33790

--- Comment #2 from Marek Olšák <maraeo@gmail.com> 2011-03-29 17:04:28 PDT ---
Can you set this environment variable:

RADEON_THREAD=0

and try again?

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=33790

--- Comment #3 from Marek Olšák <maraeo@gmail.com> 2011-03-29 17:08:49 PDT ---
(In reply to comment #2)
> Can you set this environment variable:
> 
> RADEON_THREAD=0
> 
> and try again?

Please, ignore this. I forgot there is no thread offloading in 7.10.

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

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https://bugs.freedesktop.org/show_bug.cgi?id=33790

--- Comment #4 from speps <dreamspepser@yahoo.it> 2011-08-05 10:06:56 PDT ---
With newer 7.11 release, this bug is still present.
I managed to solve this by creating an .drirc file with:

<driconf>
    <device screen="0" driver="dri2">
        <application name="all">
            <option name="vblank_mode" value="0" />
        </application>
    </device>
</driconf>

It works in the same way with vblank_mode setted to 0 or 1,
seems like vblank_mode is unsetted by default and cause the blank output.

Btw, glxgears FPS is still low with about ~400 FPS and glxgears_pixmap
gives an even slower 2 FPS.

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

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https://bugs.freedesktop.org/show_bug.cgi?id=33790

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> 2011-08-05 10:45:00 PDT ---
vblank interrupts (or interrupts in general) may not be working on your system.
 Try `cat /proc/interrupts` and see if the count on the radeon line increases. 
If not, you might try booting with pci=nomsi or noapic or irqpoll on the kernel
commandline in grub.

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

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https://bugs.freedesktop.org/show_bug.cgi?id=33790

--- Comment #6 from speps <dreamspepser@yahoo.it> 2011-08-05 16:46:36 PDT ---
You got it,
adding pci=nomsi to kernel solves all issues.

Thanks a lot.

Framerate is high enough, and all opengl apps runs fine
even without .drirc (no blank output).
Is this a real solution or just a workaround for a known bug?

I found the same answer for another related bug (even without no success),
shouldn't this be FAQed somewhere?

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[Bug 33790] [r300g] Black windows with opengl apps (ex. glxgears)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=33790

Alex Deucher <agd5f@yahoo.com> changed:

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

--- Comment #7 from Alex Deucher <agd5f@yahoo.com> 2011-08-06 06:15:36 PDT ---
(In reply to comment #6)
> You got it,
> adding pci=nomsi to kernel solves all issues.
> Is this a real solution or just a workaround for a known bug?

It seems MSIs aren't working on your system.  Probably motherboard chipset
issue or system bios bug.  You might want to bring it up on the linux kernel
mailing list.

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