https://bugs.freedesktop.org/show_bug.cgi?id=96326
Bug ID: 96326 Summary: Heavy screen flickering in OpenGL apps on R9 390 Product: Mesa Version: git Hardware: Other OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/radeonsi Assignee: dri-devel@lists.freedesktop.org Reporter: 0xe2.0x9a.0x9b@gmail.com QA Contact: dri-devel@lists.freedesktop.org
GPU: R9 390 GPU manufacturer: Gigabyte Kernel: 4.5, 4.6, etc Firmware: both hawaii_smc.bin and hawaii_k_smc.bin
Hello,
I am experiencing heavy LCD screen flickering in OpenGL apps when automatic GPU power management is enabled.
The flickering is related to mclk transitions. Forcing mclk=1.5GHz, and letting sclk be controlled by DPM, removes the flickering.
Related issues: http://bugs.freedesktop.org/show_bug.cgi?id=91880 http://bugs.freedesktop.org/show_bug.cgi?id=92302