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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91880#c49">Comment # 49</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91880">bug 91880</a>
from <span class="vcard"><a class="email" href="mailto:dev@illwieckz.net" title="Thomas DEBESSE <dev@illwieckz.net>"> <span class="fn">Thomas DEBESSE</span></a>
</span></b>
<pre>Hey, it's awesome, the workaround Lauri Gustafsson found is working well!
I just do that at after my computer startup:
```
service 'gdm' stop
echo 'high' > '/sys/class/drm/card0/device/power_dpm_force_performance_level'
echo 'performance' > '/sys/class/drm/card0/device/power_dpm_state'
service 'gdm' start
```
Then it works! I was able to run the Unigine Valley and Heaven Benchmarks for
the first time wit dpm enabled, without crashing at startup, and with descent
performances.
If I don't do that and keep the dpm default config, my system crashes some
minutes after startup (and for sure when running on heavy benchmarks like those
ones).
I own a MSI R9 390X. In the past I wrote some details on <a class="bz_bug_link
bz_status_NEW "
title="NEW - dpm malfunction on radeon hawaii r9 390X"
href="show_bug.cgi?id=93288">bug 93288</a> . I'll
upload my vbios soon. There is some strings like that inside:
```
05/21/15 03:39
MS-V30823-F2
GRENADA
PCI_EXPRESS
GDDR5
113-MSITV308MH.201
(C) 1988-2010, Advanced Micro Devices, Inc.
ATOMBIOSBK-AMD VER015.048.000.062.000000
V30830SC.bin
MSI_GRENADA_V30823XT_C67201_A0_GDDR5_8GB_30S\config.h
AMD ATOMBIOS
```</pre>
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