[Bug 55217] New: [RS880] opengl not working anymore

[Bug 55217] New: [RS880] opengl not working anymore

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

             Bug #: 55217
           Summary: [RS880] opengl not working anymore
    Classification: Unclassified
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: michaell@gmx.org


after updating mesa to latest git, i can not using opengl-apps anymore

running glxgears give the following error message:
EE r600_asm.c:121 r600_bytecode_get_num_operands - Need instruction operand
number for 0xc

testet with kernel 3.5.1 and 3.6.0-rc6

using xorg-server-1.12.2 and libdrm, mesa, xf86-video-ati from git

removing xorg.conf gives the same error

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #1 from Michael Lange <michaell@gmx.org> 2012-09-22 09:48:57 UTC ---
Created attachment 67541
  --> https://bugs.freedesktop.org/attachment.cgi?id=67541
dmesg

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #2 from Michael Lange <michaell@gmx.org> 2012-09-22 09:49:29 UTC ---
Created attachment 67542
  --> https://bugs.freedesktop.org/attachment.cgi?id=67542
Xorg.0.log

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[Bug 55217] [RS880] opengl not working anymore

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

rboudot@hotmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rboudot@hotmail.com

--- Comment #3 from rboudot@hotmail.com 2012-09-22 13:52:29 UTC ---
Me too


Also Unity on Ubuntu 12.04 displays black screen with only the mouse pointer.
Switching to another virtual console or logging in Unity 2D works though.

Radeon HD3450 (RV620) on Ubuntu 12.04 + OIBAF PPA

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[Bug 55217] [RS880] opengl not working anymore

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

--- Comment #4 from Alex Deucher <agd5f@yahoo.com> 2012-09-22 14:52:35 UTC ---
Can you bisect?

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--- Comment #5 from Michael Lange <michaell@gmx.org> 2012-09-22 17:32:05 UTC ---
sorry, but which PATH environment variables i have to set?

LD_LIBRARY_PATH="~/mesa/src/glx" glxgears
does not work

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #6 from Alex Deucher <agd5f@yahoo.com> 2012-09-22 18:40:41 UTC ---
Bisect is a git option to identify what commit caused a problem.  Google for
"git bisect".

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--- Comment #7 from Michael Lange <michaell@gmx.org> 2012-09-22 19:33:01 UTC ---
yes ... i have google for it ;)
so i should bisect mesa-git, right?

* i have clone the mesa-git with git clone
git://anongit.freedesktop.org/git/mesa/mesa
* cd mesa
* git checkout 9aa8bac9 (i think this was working "date 2012-09-19")
* ./configure --prefix=/usr --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info
--datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib
--libdir=/usr/lib64 --disable-dependency-tracking --enable-dri --enable-glx
--enable-texture-float --disable-debug --enable-egl --enable-gbm --enable-gles1
--enable-gles2 --enable-glx-tls --disable-osmesa --enable-asm
--enable-shared-glapi --enable-xa --enable-xorg --with-dri-drivers=
--with-gallium-drivers=,swrast,r600 --with-egl-platforms=x11,drm
--enable-gallium-egl --enable-gallium-g3dvl --enable-gallium-llvm
--disable-openvg --enable-r600-llvm-compiler --disable-vdpau --enable-xvmc
* make
* now i would like testing mesa, but how? running glxgears uses the system-libs
from /usr/lib64.


with 
EGIT_COMMIT="9aa8bac98b823e8783bc3a06a6e5b23fbf8d87fb" emerge mesa
i got a working mesa.

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #8 from Michael Lange <michaell@gmx.org> 2012-09-22 19:35:57 UTC ---
my system is working and running with a mesa-build from 2012-09-19
how i could test the mesa-build in my home-dir?

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #9 from Matt Turner <mattst88@gmail.com> 2012-09-22 20:34:51 UTC ---
(In reply to comment #8)
> my system is working and running with a mesa-build from 2012-09-19
> how i could test the mesa-build in my home-dir?

You can set where to look for shared libraries by settings LD_LIBRARY_PATH=...
and where to look for DRI drivers with LIBGL_DRIVERS_PATH=...

E.g., LD_LIBRARY_PATH=<directory where libGL.so.1 lives>
LIBGL_DRIVERS_PATH=<directory where r600_dri.so lives> glxgears

will run glxgears with your new Mesa.

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #10 from Marek Olšák <maraeo@gmail.com> 2012-09-22 20:59:42 UTC ---
I can't reproduce this. Mesa master on RS880 is working fine here.

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[Bug 55217] [RS880] opengl not working anymore

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

--- Comment #11 from Fabio Pedretti <fabio.ped@libero.it> 2012-09-23 07:07:12 UTC ---
(In reply to comment #10)
> I can't reproduce this. Mesa master on RS880 is working fine here.

A quick search in the git log returned this:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=7b4aefd3c9c1b04832306b8114b3f2007318f087

Did you compile with --enable-r600-llvm-compiler ? It's enabled in my PPA.

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--- Comment #12 from kowalski marcin <yoshi314@gmail.com> ---
i'm currently experiencing this with rs780 and darkplaces. I only get black
screen, and logs are filled with this error. I have an llvm-enabled build of
mesa.

This is on current git @ fb40f88338b6af23faae03ced5906add8507db26

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #13 from Michael Lange <michaell@gmx.org> ---
(In reply to comment #9)
> 
> E.g., LD_LIBRARY_PATH=<directory where libGL.so.1 lives>
> LIBGL_DRIVERS_PATH=<directory where r600_dri.so lives> glxgears
> 
> will run glxgears with your new Mesa.

thanks, this works

currently bisecting mesa - two steps to go

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

--- Comment #14 from Tom Stellard <tstellar@gmail.com> ---
If you are using the llvm compiler setting the environment variable R600_LLVM=0
will cause the driver to fall back to the TGSI compiler and should fix the
rendering errors.

It would be helpful if someone could run one of the affected programs with the
R600_DUMP_SHADES=1 environment variable set and post the output.

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

--- Comment #15 from Tom Stellard <tstellar@gmail.com> ---
(In reply to comment #14)
> If you are using the llvm compiler setting the environment variable
> R600_LLVM=0 will cause the driver to fall back to the TGSI compiler and
> should fix the rendering errors.
> 
> It would be helpful if someone could run one of the affected programs with
> the R600_DUMP_SHADES=1 environment variable set and post the output.

Sorry, typo above.  The environment variable is R600_DUMP_SHADERS=1

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[Bug 55217] [RS880] opengl not working anymore

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--- Comment #16 from Michael Lange <michaell@gmx.org> ---
bisecting mesa comes to this

0e0c21e00ee80bcff67e37ec86b97d6c25db066a is the first bad commit
commit 0e0c21e00ee80bcff67e37ec86b97d6c25db066a
Author: Michal Sciubidlo <michal.sciubidlo@gmail.com>
Date:   Wed Sep 12 08:57:01 2012 +0200

    radeon/llvm: Emit ISA for ALU instructions in the R600 code emitter

    Signed-off-by: Tom Stellard <thomas.stellard@amd.com>

:040000 040000 de615a99537b02f3e978f285393559da27d8c1da
2e75e2c1ba7912acfdbbb38c65c3c21831b258da M    src


configure is in comment 7

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--- Comment #17 from Michael Lange <michaell@gmx.org> ---
Created attachment 67582
  --> https://bugs.freedesktop.org/attachment.cgi?id=67582&action=edit
R600_DUMP_SHADERS=1

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[Bug 55217] [RS880] opengl not working anymore

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https://bugs.freedesktop.org/show_bug.cgi?id=55217

Michael Lange <michaell@gmx.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #67582|0                           |1
        is obsolete|                            |

--- Comment #18 from Michael Lange <michaell@gmx.org> ---
Created attachment 67583
  --> https://bugs.freedesktop.org/attachment.cgi?id=67583&action=edit
R600_DUMP_SHADERS=1

ahhh ... rtf-file - i hate this texteditor from macosx

nano make this right ;)

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--- Comment #19 from Michael Lange <michaell@gmx.org> ---
in case it is important, i have set some environment variables

belly@jelly ~/mesa $ env | grep R600
R600_STREAMOUT=1
R600_HYPERZ=1
R600_GLSL130=1
R600_TILING=1
R600_SURF=1

this was set for a few months to test something, i forgot to reset this

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--- Comment #20 from Tom Stellard <tstellar@gmail.com> ---
Created attachment 67586
  --> https://bugs.freedesktop.org/attachment.cgi?id=67586&action=edit
Possible fix

Does this patch fix the problem?

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--- Comment #21 from Michael Lange <michaell@gmx.org> ---
(In reply to comment #20)
> Created attachment 67586 [details] [review]
> Possible fix
> 
> Does this patch fix the problem?

your patch works
tested with the latest mesa-version from git

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--- Comment #22 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #20)
> Created attachment 67586 [details] [review]
> Possible fix

Tested-by: Michel Dänzer <michel.daenzer@amd.com>

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Fabio Pedretti <fabio.ped@libero.it> changed:

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

--- Comment #23 from Fabio Pedretti <fabio.ped@libero.it> ---
Fixed with 92b033a89ebd46d640ecb2592159087a87e5516e .

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