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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Hang during boot when DPM is on (R9 270X)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76490#c86">Comment # 86</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Hang during boot when DPM is on (R9 270X)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76490">bug 76490</a>
from <span class="vcard"><a class="email" href="mailto:dex+fdobugzilla@dragonslave.de" title="Daniel Exner <dex+fdobugzilla@dragonslave.de>"> <span class="fn">Daniel Exner</span></a>
</span></b>
<pre>Tried kernel 4.4.0-rc4 with
"drm/radeon: load different smc firmware on some SI variants"
and
"drm/radeon: print pci revision id as well as pci ids"
applied.
The good news: this kernel boots just fine:
[ 3.120205] [drm] radeon kernel modesetting enabled.
[ 3.135919] [drm] initializing kernel modesetting (PITCAIRN 0x1002:0x6810
0x1462:0x3036 0x00).
But if I remove line 2927 from drivers/gpu/drm/radeon/si_dpm.c the initial
problems return: boot fails.</pre>
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