[Bug 71789] New: [r300g] Visuals not found in (default) depth = 24

[Bug 71789] New: [r300g] Visuals not found in (default) depth = 24

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https://bugs.freedesktop.org/show_bug.cgi?id=71789

          Priority: medium
            Bug ID: 71789
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [r300g] Visuals not found in (default) depth = 24
          Severity: normal
    Classification: Unclassified
                OS: OpenBSD
          Reporter: mpi@openbsd.org
          Hardware: PowerPC
            Status: NEW
           Version: 9.2
         Component: Drivers/Gallium/r300
           Product: Mesa

Created attachment 89467
  --> https://bugs.freedesktop.org/attachment.cgi?id=89467&action=edit
Xorg.log without configuration file

Without xorg.conf or with a pixel depth of 24 bits, any application linked to
libGL will fails to load the "r300" driver and after it the "swarst" driver
with the following message:

  libGL error: failed to load driver: r300
  libGL error: Try again with LIBGL_DEBUG=verbose for more details.
  libGL error: failed to load driver: swrast
  libGL error: Try again with LIBGL_DEBUG=verbose for more details.

This problem is present in all the Mesa 9.x release up to 9.2.3.  But it is not
in the 8 (which segfault at some point), 7.11 was working without config file.

After a bit of investigation, I found that driConvertConfigs() returns NULL in 
dri2CreateScreen() when trying to find matching visuals
(src/glx/dri_glx.c:450).  However if I specify a depth of 16 bits in my
xorg.conf I cannot reproduce this problem.

This problem is present on OpenBSD -current (future 5.5) which has the drm
drivers synced with Ubuntu's linux 3.8 kernel.

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--- Comment #1 from Martin Pieuchot <mpi@openbsd.org> ---
Created attachment 89468
  --> https://bugs.freedesktop.org/attachment.cgi?id=89468&action=edit
Xorg.log with 16 bits depth in xorg.conf

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--- Comment #2 from Martin Pieuchot <mpi@openbsd.org> ---
FWIW the patches mentionned in
http://lists.freedesktop.org/archives/mesa-dev/2013-December/050218.html work
for me.

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herminio.hernandezjr@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 OS|OpenBSD                     |Linux (All)

--- Comment #3 from herminio.hernandezjr@gmail.com ---
I am seeing the same thing in Debian Testing. Those patches woorked all the way
up to mesa 10.5.5 then they began to fail.

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--- Comment #4 from herminio.hernandezjr@gmail.com ---
Created attachment 116274
  --> https://bugs.freedesktop.org/attachment.cgi?id=116274&action=edit
glxinfo output

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--- Comment #5 from herminio.hernandezjr@gmail.com ---
I noticed in the 11.0.3 release notes that this issue was fix. However I am
running Lubuntu 16.04 (development) on my iBook G4 and I am still. Getting the
same issue. When I change to Defaul Depth 16 I get 3D acceleration. I ran
strace under both conditions and am post them plus my Xorg.0.log

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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--- Comment #6 from herminio.hernandezjr@gmail.com ---
Created attachment 119753
  --> https://bugs.freedesktop.org/attachment.cgi?id=119753&action=edit
strace default depth 24

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--- Comment #7 from herminio.hernandezjr@gmail.com ---
Created attachment 119754
  --> https://bugs.freedesktop.org/attachment.cgi?id=119754&action=edit
strace default depth 16

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--- Comment #8 from herminio.hernandezjr@gmail.com ---
Created attachment 119755
  --> https://bugs.freedesktop.org/attachment.cgi?id=119755&action=edit
xorg log

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Martin Pieuchot <mpi@openbsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|9.2                         |11.0

--- Comment #9 from Martin Pieuchot <mpi@openbsd.org> ---
I confirm that this bug is still present with Mesa 11.0.6.

Without forcing "DefaultDepth" to 16, I get:

  $ glxgears
  libGL error: No matching fbConfigs or visuals found
  libGL error: failed to load driver: r300
  libGL error: No matching fbConfigs or visuals found
  libGL error: failed to load driver: swrast

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Max May <lowtech@live.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|11.0                        |11.1

--- Comment #10 from Max May <lowtech@live.de> ---
With Ubuntu Mate 16.04a2 on a G4 PowerBook5,8 I have to confirm, that this bug
is still present with Mesa 11.1.1.

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--- Comment #11 from erhard_f@mailbox.org ---
Can confirm this bug on Ubuntu MATE 16.04 daily, Mesa 11.1.1. On a PowerBook
5,6.

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erhard_f@mailbox.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|11.1                        |11.2

--- Comment #12 from erhard_f@mailbox.org ---
Still here on mesa 11.2 (Ubuntu MATE 16.04 daily). Tested on a PowerMac G5 7,3.

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Mathieu Malaterre <mathieu.malaterre@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mathieu.malaterre@gmail.com

--- Comment #13 from Mathieu Malaterre <mathieu.malaterre@gmail.com> ---
An updated patch is now available from:

https://lists.freedesktop.org/archives/mesa-dev/2016-April/114409.html

As mentioned over here:

https://lists.freedesktop.org/archives/mesa-dev/2016-April/114412.html

we'are actively looking forward for feedback.

I've also attached the patch directly to this bug tracker for convenience:
r300g_be.patch

--- Comment #14 from herminio.hernandezjr@gmail.com ---
I also see in apitrace that GLXChooseVisual returns with NULL when I to run
glxgears.

--- Comment #15 from herminio.hernandezjr@gmail.com ---
I also see in apitrace that GLXChooseVisual returns with NULL when I to run
glxgears.

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--- Comment #16 from Mathieu Malaterre <mathieu.malaterre@gmail.com> ---
Created attachment 123267
  --> https://bugs.freedesktop.org/attachment.cgi?id=123267&action=edit
proposed patch

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--- Comment #17 from Elimar Riesebieter <riesebie@lxtec.de> ---
Patched r300g_be.patch against mesa 11.1.3. -> No acceleration at Depth 24.This
is Debian sid.

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--- Comment #18 from Dan DeVoto <dand1972@yahoo.com> ---
Same here.  Glxinfo says r300 fails to load.

dan@powerbook2:~$ glxinfo
name of display: :0.0
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: r300
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
Error: couldn't find RGB GLX visual or fbconfig

...

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--- Comment #19 from Nathan-J. Hirschauer <nathanhi@deepserve.info> ---
Applied the patch on top of 43f46caf769b0a6d661850ce2fa64b6f4b085b9f, but
unfortunately it didn't work. Tested on a PowerBook G4 5,6 with Linux 4.6-rc4
(5f44abd041c5f3be76d57579ab254d78e601315b) / Debian Sid.

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Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #123267|0                           |1
        is obsolete|                            |

--- Comment #20 from Marek Olšák <maraeo@gmail.com> ---
Created attachment 123370
  --> https://bugs.freedesktop.org/attachment.cgi?id=123370&action=edit
final fix?

Could you please test this patch?

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--- Comment #21 from Nathan-J. Hirschauer <nathanhi@deepserve.info> ---
Created attachment 123385
  --> https://bugs.freedesktop.org/attachment.cgi?id=123385&action=edit
glxinfo output with final fix

Patched it on top of cbcd7b60f573d027337a2390e67f6010e9992aaa and that one did
actually work! I've attached the full glxinfo output in case someone is
interested.

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--- Comment #22 from Elimar Riesebieter <riesebie@lxtec.de> ---
Applied against Debian 11.1.3-1. 3-D acceleration at depth=24 works. Power
consumption running foobillardplus is very high. Colors at the Cairo Dock are
looking pastel shaded.

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--- Comment #23 from Michel Dänzer <michel@daenzer.net> ---
Elimar, Nathan or anyone else, can you try if the piglit sanity tests pass with
this patch?

Also, do OpenGL compositing managers such as gnome-shell show correct colours?

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--- Comment #24 from Nathan-J. Hirschauer <nathanhi@deepserve.info> ---
Created attachment 123420
  --> https://bugs.freedesktop.org/attachment.cgi?id=123420&action=edit
Piglit Sanity Check Results

I've attached the Piglit result of the sanity check to this issue, GNOME Shell
also has a discolouration (the title bar and activity screen is red) and after
using it for a couple of minutes it crashed (SIGSEGV):

[ 6088.876306] gnome-shell[8144]: unhandled signal 11 at 095b44c0 nip 095b44c0
lr 0de343b4 code 30001
[ 6112.441094] gnome-shell[8701]: unhandled signal 11 at 095b44c0 nip 095b44c0
lr 0de343b4 code 30001

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--- Comment #25 from erhard_f@mailbox.org ---
Patched on top on 79b0e13913b5189bb8629e80439fea746f99fe79 and it works! Many
thanks!

Machine used is a PowerMac G5 7,3 with an AGP Radeon 9600 Pro (Mac edition).
Running Compton composting manager (Ubuntu MATE 16.04) and it runs without
glitches so far, colours look good. Only thing I noticed is the desktop gets
unresponsive and the mouse pointer very jerky during youtube video playback.

Will try Piglit tests the next days.

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--- Comment #26 from Mathieu Malaterre <mathieu.malaterre@gmail.com> ---
I believe that the testers should also make sure to use PCI instead of AGP
during there testing. See bug:
https://bugs.freedesktop.org/show_bug.cgi?id=95017.

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--- Comment #27 from erhard_f@mailbox.org ---
Built piglit from svn on Ubuntu MATE 16.04 ppc. Already the sanity test fails,
specifically:
root@T800:~/build/piglit# /root/build/piglit/bin/gl-1.0-readpixsanity -auto
-fbo
    RGB(A) worst-case error was 6.641274 bits at (32, 80)
        expected (0.840188, 0.394383, 0.783099, 0.798440)
        got (0.799995, 0.784309, 0.396076, 0.839211)
    Depth worst-case error was 23.862089 bits at (107, 6)
        expected 0.911647; got 0.002813.
    Stencil failed at (0, 1).
        Expected 255; got 233.
PIGLIT: {"result": "fail" }

But I must admit that I've no experience with piglit, built and used it for the
first time.

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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https://bugs.freedesktop.org/show_bug.cgi?id=71789

--- Comment #28 from Marek Olšák <maraeo@gmail.com> ---
At this stage I just need a confirmation that more than 60% of apps work and
show correct colors (mainly games). I don't expect all apps to be perfect right
now.

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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--- Comment #29 from Michel Dänzer <michel@daenzer.net> ---
That piglit sanity is failing with the patch may confirm my suspicion that
something doesn't add up yet I'm afraid: Since the kernel driver and
xf86-video-ati EXA code are using the same hardware formats for
display/rendering with BE & LE, I was wondering how the patch could result in
both display and glReadPixels working correctly for winsys buffers. Looks like
indeed only display works correctly, which indicates that the GPU is
effectively writing/reading PIPE_FORMAT_x8R8G8B8_* pixels like
PIPE_FORMAT_B8G8R8x8_* (which is what the kernel driver and EXA code are
using).

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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https://bugs.freedesktop.org/show_bug.cgi?id=71789

--- Comment #30 from Marek Olšák <maraeo@gmail.com> ---
(In reply to Michel Dänzer from comment #29)
> That piglit sanity is failing with the patch may confirm my suspicion that
> something doesn't add up yet I'm afraid: Since the kernel driver and
> xf86-video-ati EXA code are using the same hardware formats for
> display/rendering with BE & LE, I was wondering how the patch could result
> in both display and glReadPixels working correctly for winsys buffers. Looks
> like indeed only display works correctly, which indicates that the GPU is
> effectively writing/reading PIPE_FORMAT_x8R8G8B8_* pixels like
> PIPE_FORMAT_B8G8R8x8_* (which is what the kernel driver and EXA code are
> using).

The patch is correct from the LE perspective. It simply adds ARGB support and
was tested thoroughly on LE. The side effect is that BE can use the format now
too, but there may be other issues with BE.

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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https://bugs.freedesktop.org/show_bug.cgi?id=71789

--- Comment #31 from herminio.hernandezjr@gmail.com ---
I can verify the patch works. However there are some issues

1. I see my colors are off when I use compiz as my WM and try to rotate the
cube.

2.piglit samity tests fail with this error:
spec/!opengl 1.0/gl-1.0-readpixsanity/gl-1.0-readpixsanity: fail

3. games like alien-arean and supertuxkart crash my system when trying to load
the game.

4. I can play video in mpv using opengl but get the following error:
[vo/opengl] Could not create EGL context!

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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https://bugs.freedesktop.org/show_bug.cgi?id=71789

--- Comment #32 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Marek Olšák from comment #30)
> The patch is correct from the LE perspective. It simply adds ARGB support
> and was tested thoroughly on LE. The side effect is that BE can use the
> format now too, but there may be other issues with BE.

Makes sense. Maybe we can use bug 43698 to track the remaining issues.

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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https://bugs.freedesktop.org/show_bug.cgi?id=71789

Marek Olšák <maraeo@gmail.com> changed:

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

--- Comment #33 from Marek Olšák <maraeo@gmail.com> ---
Fixed by 172bfdaa9e80342ade3f023f72d455d76713b866. Closing.

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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--- Comment #34 from cosiekvfj@o2.pl ---
Fix for this bug result in regression:
https://bugs.freedesktop.org/show_bug.cgi?id=98869

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--- Comment #35 from richard <richard.kuenz@web.de> ---
Hello ,

how can i apply this patch?
I am using Powermac G5 7,3 with Radeon9650, Debian Wheezy, kernel 3.2.6
it gives

 dmesg | grep -E 'drm|radeon' | grep -iE 'firmware|microcode'
[    1.137001] radeonfb: Found Open Firmware ROM Image
[    1.137015] radeonfb: Retrieved PLL infos from Open Firmware
[   25.042791] [drm] Loading R300 Microcode
[   25.111223] platform radeon_cp.0: firmware: agent loaded radeon/R300_cp.bin
into memory


after installing firmware-linux-nonfree.
Video playback is blue (no video shown) when using mplayer, mpv, vlc .. but
html5 playback on youtube works normal (bit slow, though).

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--- Comment #36 from richard <richard.kuenz@web.de> ---
wheezy only have mesa 8 available, but videoplayback would be very nice please.
don't know how to change colour depth as there is no xorg.conf.
thank you very much

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[Bug 71789] [r300g] Visuals not found in (default) depth = 24

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--- Comment #37 from Marek Olšák <maraeo@gmail.com> ---
You can try "git am -3 ...". If that doesn't help, then I don't know.

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