[Bug 98021] Applications and games crash after opengl version overrides

[Bug 98021] Applications and games crash after opengl version overrides

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=98021

            Bug ID: 98021
           Summary: Applications and games crash after opengl version
                    overrides
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: step2back+freedesktop@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

I should set mesa version to smooth play in alien isolation (
https://bugs.freedesktop.org/show_bug.cgi?id=93144#c35 ). I set
"MESA_GL_VERSION_OVERRIDE=4.3 MESA_GLSL_VERSION_OVERRIDE=430". Appications and
games start carsh in gl initialization. Some examples: steam, 0ad. glxgear
shows black screen.

I use software from oibaf ppa:

Extended renderer info (GLX_MESA_query_renderer):
    Vendor: X.Org (0x1002)
    Device: AMD CAPE VERDE (DRM 2.43.0 / 4.4.0-41-generic, LLVM 3.9.0) (0x683d)
    Version: 12.1.0
    Accelerated: yes
    Video memory: 1024MB
    Unified memory: no
    Preferred profile: core (0x1)
    Max core profile version: 4.3
    Max compat profile version: 4.3
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.0

MESA_DEBUG=1 prints

Mesa: User error: GL_INVALID_ENUM in glGetString(GL_EXTENSIONS)

I'm curious why mesa does not set 4.3 already. According mesamatrix (by
features.txt) there are all extensions implemented for radeonsi.

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[Bug 98021] Applications and games crash after opengl version overrides

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https://bugs.freedesktop.org/show_bug.cgi?id=98021

--- Comment #1 from Nicolai Hähnle <nhaehnle@gmail.com> ---
Hi Stepan, it's called an override for a reason. When you enable it, you're
operating outside of the supported parameters, and shouldn't be surprised when
something crashes. Don't report a bug for something like that.

That said, radeonsi has supported OpenGL 4.3 for several months now. For
SI-based cards like yours, you need a more recent kernel. The radeon module of
older kernels lacks some of the functionality that is required for compute
shaders.

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[Bug 98021] Applications and games crash after opengl version overrides

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https://bugs.freedesktop.org/show_bug.cgi?id=98021

Nicolai Hähnle <nhaehnle@gmail.com> changed:

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

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[Bug 98021] Applications and games crash after opengl version overrides

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https://bugs.freedesktop.org/show_bug.cgi?id=98021

--- Comment #2 from Stepan Bakshaev <step2back+freedesktop@gmail.com> ---
I got it. linux 4.8 is enough for enable 4.3 in stock. Sorry for bother you. I
check time by time https://www.x.org/wiki/RadeonFeature/. it does not mention
about all requirements for opengl 4.3. There is only llmv 3.8 as requirements.
I saw Alex Deucher updates that wiki page. May be he will add next time linux
4.8 in footnotes.

Thank you and whole team for pushing radeon driver forward!

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[Bug 98021] Applications and games crash after opengl version overrides

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https://bugs.freedesktop.org/show_bug.cgi?id=98021

Christian König <deathsimple@vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

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