https://bugs.freedesktop.org/show_bug.cgi?id=69723
--- Comment #62 from Martin Andersson g02maran@gmail.com --- (In reply to comment #61)
(In reply to comment #60)
Instead of triggering the power level switches by running GpuTest in bursts, I put this in a bash script:
for i in {1..3600} do echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level sleep 1 echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level sleep 5 done
and just let GpuTest, and piglit, run continously. I found that this also trigger the lockups within minutes.
Then I ran the script by itself, no GpuTest or piglit, and left it running while I was at work. When I came home the machine was still running, so it ran for six hours without any lockup. So it seems the power level switching alone is not sufficient to trigger the lockups, it also needs a load of some sort.
Do you mean while spread spectrum is still enabled?
Yes