Heavy screen flickering in OpenGL apps on R9 390
Submitted by Jan Ziak @atomsymbol
Assigned to Default DRI bug account
Description
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