Hi there. Im using laptop with hybrid graphics. Intel Core i5-2450m with integrated videocard and AMD Radeon HD 6650m as discrete. My glxinfo output glxinfo | grep OpenGL OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Sandybridge Mobile OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.0.4 OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 11.0.4 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.0.4 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00 OpenGL ES profile extensions: And output with DRI_PRIME set. DRI_PRIME=1 glxinfo | grep OpenGL OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD TURKS (DRM 2.43.0, LLVM 3.6.2) OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.0.4 OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 11.0.4 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.0.4 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00 OpenGL ES profile extensions: So, i guess when im using DRI_PRIME environmental variable as one - kernel tries to use discrete videocard. And when im trying to launch applications (glxgears, etracer, steam) i got many messages in dmesg like this [ 1376.309602] [drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object lookup failed 0xe [ 1376.309620] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse relocation -2! [ 1376.822639] [drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object lookup failed 0xe [ 1376.822661] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse relocation -2! Looking forward to some discussion.
Also im using uname -r 4.5.0-040500-generic from kernel.ubuntu.com
Created attachment 122472 [details] Graphic artifacts
Added screenshot with an graphic artifacts. The right part of console is a Steam running with DRI_PRIME=1 And dmesg on the left.
[ 326.627005] [drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object lookup failed 0xe [ 326.627032] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse relocation -2! [ 326.689902] radeon 0000:01:00.0: evergreen_cs_track_validate_cb:480 cb[0] bo too small (layer size 3379200, offset 0, max layer 1, bo size 81920, slice 13199) [ 326.689907] radeon 0000:01:00.0: evergreen_cs_track_validate_cb:484 problematic surf: (1280 660) (1 4 1 0 0 0 0) [ 326.689909] radeon 0000:01:00.0: evergreen_packet3_check:1948 invalid cmd stream 927 [ 326.689938] [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream ! [ 326.690222] [drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object lookup failed 0xe [ 326.690239] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse relocation -2! New lines in dmesg appeared. DRI_PRIME=1 glxinfo | grep OpenGL OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD TURKS (DRM 2.43.0, LLVM 3.8.0) OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.3.0-devel (git-dc9ecf5 2016-03-21 wily-oibaf-ppa) OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 11.3.0-devel (git-dc9ecf5 2016-03-21 wily-oibaf-ppa) OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.3.0-devel (git-dc9ecf5 2016-03-21 wily-oibaf-ppa) OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00 OpenGL ES profile extensions:
Fixed by enabling DRI3 on integrated card.
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