[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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https://bugs.freedesktop.org/show_bug.cgi?id=92039

            Bug ID: 92039
           Summary: glxinfo: Error: couldn't find RGB GLX visual or
                    fbconfig; GetVisualConfigs returns 0 visuals; All
                    fbconfigs have VisDepth = 0
           Product: Mesa
           Version: 10.1
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: mikolaj.chadzynski@mobica.com
        QA Contact: dri-devel@lists.freedesktop.org

Created attachment 118341
  --> https://bugs.freedesktop.org/attachment.cgi?id=118341&action=edit
XOrg.0.log

glxinfo displays visuals correctly for mesa 9.2.5 (SW rendering works ok -
checked with glxgears) but when mesa updated to 10.1.2 I'm getting error:
libGL error: failed to load driver: radeonsi
libGL error: failed to load driver: swrast
Error: couldn't find RGB GLX visual or fbconfig
Error: couldn't find RGB GLX visual or fbconfig

xdpyinfo returns only 3 X visuals (for mesa 9.2.5 it was about 100)
glxinfo return 0 GLX visuals and all GLXFBConfigs have VisDepth = 0

Traced in libGL.so (glxect.c):
GetVisualConfigs returns 0 visuals.

Answering this question would help:
Where in mesa creating/getting information about visuals is done?

XOrg.O.log shows no error.


I suspect the problem is in radeonsi_drv.so, but for sure it's in Mesa.

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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https://bugs.freedesktop.org/show_bug.cgi?id=92039

mikolaj.chadzynski@mobica.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|medium                      |high
                 CC|                            |mikolaj.chadzynski@mobica.c
                   |                            |om

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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https://bugs.freedesktop.org/show_bug.cgi?id=92039

--- Comment #1 from mikolaj.chadzynski@mobica.com ---
ERRATA: radeon_si_dri.so not radeon_si_drv.so in last sentence

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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--- Comment #2 from mikolaj.chadzynski@mobica.com ---
radeonsi_dri.so not radeonsi_drv.so :-)

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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--- Comment #3 from Emil Velikov <emil.l.velikov@gmail.com> ---
Hi Mikolaj

Here are a few things to try (keep in mind that I'm not a radeon dev)
 - Afaics this is a PPC - is it big endian (BE) system ?
 - Do try a later mesa 10.6.x or 11.0.x. Last (and final) 10.1.x was rolled out
~15 months ago, plus we had some BE fixes that just landed.

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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--- Comment #4 from mikolaj.chadzynski@mobica.com ---
I've tried mesa 10.4.4 with the same result (yes this is PPC). And I haven't
tried higher version since it needs Xserver update.
Anyway it displays visuals correctly for mesa 9.2.5.
So it's communication between radeonsi_dri.so and xserver which is broken (even
xdpyinfo shows only 3 X visuals).

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--- Comment #5 from Emil Velikov <emil.l.velikov@gmail.com> ---
So it does sound like you're having a BE system. Handful of fixes for those
just landed in 10.6/11.0 I'm afraid.

Although I'm not sure why newer xserver will be required... guessing you're
running a old (pre glamor, or out-of-tree glamor) one ? If you're worried about
messing up your setup you can always grab a recent enough livecd or install
Fedora rawhide/Archlinux/etc in a separate partition.

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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--- Comment #6 from mikolaj.chadzynski@mobica.com ---
(In reply to Emil Velikov from comment #5)
I've tried mesa 10.6.1 and results are the same (x-server 1.15.0, glamor 0.6.0)
Are there any dependencies of the version required which are not checked e.g.
xf86 driver or drm which can be a cause of this error ?

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[Bug 92039] glxinfo: Error: couldn't find RGB GLX visual or fbconfig; GetVisualConfigs returns 0 visuals; All fbconfigs have VisDepth = 0

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--- Comment #7 from mikolaj.chadzynski@mobica.com ---
It looks like the screen created by gallium/drivers/radeon/si_pipe.c is not
getting correct configuration from the driver (or display controller ?).
Which part of the system is responsible for creating visuals in the screen ?

XGetVisualInfo from XServer is returning only 3 X visuals (two 24bits depth and
1 32 bits depth) - checked with xdpyinfo.

Then xGLXGetVisualConfigs returns 0 visuals - checked with glxinfo  which shows
0 GLX Visuals and al GLXFBConfigs have VisDepth = 0.

I'm using Yocto distribution for PPC where the default mesa is 9.2.5.
Here is my investigation with different versions of mesa:
9.2.5:
Visuals are created correctly and SW rendering works but switching on HW
rendering (loading radeonsi_dri.so) is causing GPU error.
10.1.2:
No GLX Visuals unable to run SW rendering, GPU error while loading
radeonsi_dri.so
10.4.4:
No GLX Visuals, No gpu error
10.6.1:
No GLX Visuals, No gpu error

In all cases there is no error in XOrg.0.log. It shows:
...
RADEON(0): Direct rendering enabled
RADEON(0): Use GLAMOR acceleration.
RADEON(0): Acceleration enabled
...
AIGLX: Loaded and initialized radeonsi

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--- Comment #8 from Michel Dänzer <michel@daenzer.net> ---
See bug 71789 and
http://lists.freedesktop.org/archives/mesa-dev/2015-September/095517.html for
some context.

Note that this is only the tip of an iceberg of issues for the radeonsi driver
on big endian hosts. Don't expect this to work anytime soon.

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--- Comment #9 from Alex Perez <aperez@alexperez.com> ---
I don't think this problem is specific to radeonsi; With the very latest
git-built Mesa from today, I get the exact same problem with r600.
Interestingly, 3D acceleration works with 16-bit depth, albeit still with wonky
colors on Big Endian. 24 bit does not work at all with the very latest mesa
from git, as of today.

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Timothy Arceri <t_arceri@yahoo.com.au> changed:

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

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