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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu [RX Vega 64] system freeze while gaming"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109955#c113">Comment # 113</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - amdgpu [RX Vega 64] system freeze while gaming"
href="https://bugs.freedesktop.org/show_bug.cgi?id=109955">bug 109955</a>
from <span class="vcard"><a class="email" href="mailto:jason@jasonplayne.com" title="Jason Playne <jason@jasonplayne.com>"> <span class="fn">Jason Playne</span></a>
</span></b>
<pre>As others have noted, with powerplay doing its thing we get system freezes.
Just had a successful 6+ hour gaming session on a kernel 5.3.2-050302-generic
with the following being done:
* Forcing high perf state
* Undervolt/Overclock
* Higher fan curve (<a href="https://github.com/grmat/amdgpu-fancontrol">https://github.com/grmat/amdgpu-fancontrol</a>)
I know that I have been messing with all sorts here, but I think it suggests
that PowerPlay may be at fault here when my system *does* crash (which is all
the time without the force high perf state)
All details below:
# Forcing High Perf
echo high | sudo tee
/sys/class/drm/card0/device/power_dpm_force_performance_level
# Undervolt / Overclock
I also have done some messing around with voltages/clocks
$ cat /sys/class/drm/card0/device/pp_od_clk_voltage
OD_SCLK:
0: 852Mhz 800mV
1: 991Mhz 900mV
2: 1084Mhz 940mV
3: 1138Mhz 990mV
4: 1200Mhz 1040mV
5: 1401Mhz 1090mV
6: 1536Mhz 1140mV
7: 1630Mhz 1190mV
OD_MCLK:
0: 167Mhz 800mV
1: 500Mhz 800mV
2: 850Mhz 940mV
3: 1000Mhz 1100mV
OD_RANGE:
SCLK: 852MHz 2400MHz
MCLK: 167MHz 1500MHz
VDDC: 800mV 1200mV
# Settings for AMDGPU Fancontrol
TEMPS=( 35000 70000 80000 )
PWMS=( 70 180 255 )</pre>
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