Comment # 32
on bug 105733
from dwagner
(In reply to Jan Jurzitza from comment #31) > I have found a workaround (amd patched kernel not required): > > cat /sys/class/drm/card0/device/pp_dpm_sclk > # insert appropriate index here, I went for 1077Mhz > echo 3 > /sys/class/drm/card0/device/pp_dpm_sclk > > Makes the GPU a bit slower (changes clock to 1077 Mhz on my card) for the > session, but at least applications don't freeze the system anymore now (or > at least this is delaying it so much that it works for multiple hours, but > it didn't freeze for me yet) As long as /sys/class/drm/card0/device/power_dpm_force_performance_level is set to "auto", this write to pp_dpm_sclk won't have a lasting effect, as dynamic power management changes this clock setting all the time. For the symptoms I reported in bug https://bugs.freedesktop.org/show_bug.cgi?id=102322 I found that actually disabling dynamic power management prevents them from happening, but I do need an echo manual >power_dpm_force_performance_level for this (regardless of what values I write to pp_dpm_sclk and pp_dpm_mclk thereafter. Cave: Every mode change or re-enabling of a screen with silently disregard a previous "manual" setting, so that needs to be re-applied afterwards - this is subject to bug report https://bugs.freedesktop.org/show_bug.cgi?id=107141
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