Bugzilla – Bug 984855
KDE compositor problems with opengl 2.0
Last modified: 2018-04-17 13:27:25 UTC
In Leap 42.1 there is a problem with AMD graphics and openGL 2.0. The screen starts flashing and flickering from time to time. The problem is occures every day for about 50% of the time working. After changing the compositor under: Configure Desktop -> Display and Monitor -> Compositor -> Rendering backend from openGL 2.0 to 3.1 there is not any problem. Is there any possibility to set this option in the autoyast file?
It seems that there are some problems with opengl 3.1 to ( flickering ). The only working rendering backend seems to be XRender.
Confirmed on Leap 42.2 (Kernel 4.4.27-2-default, KDE Plasma 5.8.3, KDE Frameworks 5.26.0, Qt 5.6.1). The screen sometimes starts flashing and flickering after closing a non-KDE program that uses openGL. While the non-KDE is active, there are no problems. Switching from openGL 2.0 to 3.1 and back solves the problem temporary. This issue occurred after a new install (no upgrade) on a system that ran 13.2 without problems before. hwinfo: Hardware Class: graphics card Model: "ATI RV710 [Radeon HD 4350/4550]" Vendor: pci 0x1002 "ATI Technologies Inc" Device: pci 0x954f "RV710 [Radeon HD 4350/4550]" SubVendor: pci 0x1043 "ASUSTeK Computer Inc." --- Driver Info #0: Driver Status: radeon is active Driver Activation Cmd: "modprobe radeon" Config Status: cfg=no, avail=yes, need=no, active=unknown Attached to: #14 (PCI bridge) glxinfo: server glx version string: 1.4 client glx version string: 1.4 GLX version: 1.4 Max core profile version: 3.3 Max compat profile version: 3.0 Max GLES1 profile version: 1.1 Max GLES[23] profile version: 3.0 OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.2.2 OpenGL core profile shading language version string: 3.30 OpenGL version string: 3.0 Mesa 11.2.2 OpenGL shading language version string: 1.30 OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.2 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
This is automated batch bugzilla cleanup. The openSUSE 42.2 changed to end-of-life (EOL [1]) status. As such it is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of openSUSE, or you can still observe it under openSUSE Leap 15.0, please feel free to reopen this bug against that version (see the "Version" component in the bug fields), or alternatively open a new ticket. Thank you for reporting this bug and we are sorry it could not be fixed during the lifetime of the release. [1] https://en.opensuse.org/Lifetime