[Bug 81683] New: [r600g] graphic glitches in Skyrim - failed to build shader

[Bug 81683] New: [r600g] graphic glitches in Skyrim - failed to build shader

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

          Priority: medium
            Bug ID: 81683
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [r600g] graphic glitches in Skyrim - failed to build
                    shader
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: 640bugs@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 10.2
         Component: Drivers/Gallium/r600
           Product: Mesa

Created attachment 103360
  --> https://bugs.freedesktop.org/attachment.cgi?id=103360&action=edit
Screenshot of graphic problems in Skyrim

When playing Skyrim with Mesa 10.2.4, I get graphic glitches at the place of
the thieves guild (see screenshot, the floor isn't visible). I am playing with
an AMD Radeon 685, Linux 3.15.5-2-ARCH.

I noticed these messages in the console.

EE r600_shader.c:2188 r600_shader_from_tgsi - GPR limit exceeded - shader
requires 127 registers
EE r600_shader.c:157 r600_pipe_shader_create - translation from TGSI failed !
EE r600_state_common.c:750 r600_shader_select - Failed to build shader variant
(type=1) -12

Is this bug known? Any ideas or suggestion, how i can help to solve this issue?

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[Bug 81683] [r600g] graphic glitches in Skyrim - failed to build shader

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

--- Comment #1 from 640bugs@gmail.com ---
The graphic card is an AMD Radeon HD 6850. Sorry for the typo.

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[Bug 81683] [r600g] graphic glitches in Skyrim - failed to build shader

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

640bugs@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #103360|text/plain                  |image/jpeg
          mime type|                            |

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[Bug 81683] [r600g] graphic glitches in Skyrim - failed to build shader

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

--- Comment #2 from 640bugs@gmail.com ---
Created attachment 103403
  --> https://bugs.freedesktop.org/attachment.cgi?id=103403&action=edit
Screenshot of skyrim with patch

I manually increased the GPR limit up to 128, which solves the problem as you
can see in the screenshot. Of course I am not sure, if this is a valid patch
and doesnt cause other problems.
I also attached the patch.

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[Bug 81683] [r600g] graphic glitches in Skyrim - failed to build shader

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

--- Comment #3 from 640bugs@gmail.com ---
Created attachment 103405
  --> https://bugs.freedesktop.org/attachment.cgi?id=103405&action=edit
increase GPR limit up to 128 in r600 driver

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[Bug 81683] [r600g] graphic glitches in Skyrim - failed to build shader

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

Lauri Kasanen <curaga@operamail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |85596

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[Bug 81683] [r600g] graphic glitches in Skyrim - failed to build shader

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https://bugs.freedesktop.org/show_bug.cgi?id=81683

GitLab Migration User <gitlab-migration@fdo.invalid> changed:

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

--- Comment #4 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/517.

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