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So i've been playing some games(specifically tabletop simulator and portal 2) and i noticed some shader artifacts(Link)
output of lspci -v:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV635/M86 [Mobility Radeon HD 3650] (prog-if 00 [VGA controller])
Subsystem: Acer Incorporated [ALI] Device 0121
Flags: bus master, fast devsel, latency 0, IRQ 32
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at f0200000 (64-bit, non-prefetchable) [size=64K]
I/O ports at 2000 [size=256]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: radeon
Kernel modules: radeoni'm using the xf86-video-ati package as my driver
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Did you check gpu temperature under load?
grep . /sys/class/hwmon/hwmon*/temp1_inputOffline
Did you check gpu temperature under load?
grep . /sys/class/hwmon/hwmon*/temp1_input
57000 on standby and 72000 under load of portal 2 with everything on lowest except resolution
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Do you play linux version of Portal 2 or windows version via wine?
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Do you play linux version of Portal 2 or windows version via wine?
linux through steam
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Mesa may render artifacts if opengl version is set too high.
I suggest you:
Check currently used version:
glxinfo -BDowngrade to version 2.1 and test portal:
MESA_GL_VERSION_OVERRIDE=2.1 MESA_GLSL_VERSION_OVERRIDE=120 steamLast edited by SyndromeDayna (2020-09-17 11:51:39)
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Mesa may render artifacts if opengl version is set too high.
I suggest you:
Check currently used version:
glxinfo -BDowngrade to version 2.1 and test portal:
MESA_GL_VERSION_OVERRIDE=2.1 MESA_GLSL_VERSION_OVERRIDE=120 steam
Nope still artefacts
opengl related output of glxinfo -B
OpenGL vendor string: X.Org
OpenGL renderer string: AMD RV635 (DRM 2.50.0 / 5.8.8-arch1-1, LLVM 10.0.1)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 20.1.7
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL version string: 3.0 Mesa 20.1.7
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 20.1.7
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00Offline
Did you try video memory stress testing?
There is an application for windows called "video memory stress test". It's free and works through wine.
Last edited by SyndromeDayna (2020-09-18 03:00:22)
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Did you try video memory stress testing?
There is an application for windows called "video memory stress test". It's free and works through wine.
I ran a short test with it under wine,0 errors,also i have dualboot with windows so i fired up windows and ran portal 2 on it,no artefacts,and the memory test on windows 0 errors too,i think the problem is with the drivers or settings,the video card is fine
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