Flickering triangles in OpenGL apps on Radeon KAVERI
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
mesa (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
On (K)Ubuntu 18.04 I get strange triangles in almost all (I guess in all) apps using OpenGL.
glxinfo | grep 'string\|version' prints the following:
server glx vendor string: SGI
server glx version string: 1.4
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
GLX version: 1.4
Max core profile version: 4.5
Max compat profile version: 4.5
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.2
OpenGL vendor string: X.Org
OpenGL renderer string: AMD KAVERI (DRM 2.50.0, 5.0.0-16-generic, LLVM 8.0.0)
OpenGL core profile version string: 4.5 (Core Profile) Mesa 19.2.0-devel (git-73dda85 2019-06-04 bionic-oibaf-ppa)
OpenGL core profile shading language version string: 4.50
OpenGL version string: 4.5 (Compatibility Profile) Mesa 19.2.0-devel (git-73dda85 2019-06-04 bionic-oibaf-ppa)
OpenGL shading language version string: 4.50
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 19.2.0-devel (git-73dda85 2019-06-04 bionic-oibaf-ppa)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
lshw -C display:
*-display
description: VGA compatible controller
product: Kaveri [Radeon R5 Graphics]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 1
bus info: pci@0000:00:01.0
version: 00
width: 64 bits
clock: 33MHz
resources: irq:43 memory:
journalctl -p err -xb:
Jun 04 15:51:49 alischa kernel: ACPI BIOS Error (bug): Could not resolve [\_SB.PCI0.
Jun 04 15:51:49 alischa kernel: ACPI Error: Method parse/execution failed \_SB.PCI0.
Jun 04 15:51:49 alischa kernel: ACPI Error: Evaluating _BCM failed (20181213/
Note on oibaf-ppa: the same happens also with the standard repository packages and using this PPA was an attempt to fix the problem.
I can reproduce this bug in Minecraft (see attached screenshot), Stellarium, and in Firefox with the page https:/
I tried all combinations of graphics drivers. fbdev finally used software rendering (I think it was llvmpipe), which worked correct at the expense of a very low frame rate.
Posted the bug to https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 110849 as well.