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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Display freezes after login with kernel 3.11.0-rc5 on Cayman with dpm=1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68235#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Display freezes after login with kernel 3.11.0-rc5 on Cayman with dpm=1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68235">bug 68235</a>
from <span class="vcard"><a class="email" href="mailto:agd5f@yahoo.com" title="Alex Deucher <agd5f@yahoo.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=85578" name="attach_85578" title="disable various dpm features">attachment 85578</a> <a href="attachment.cgi?id=85578&action=edit" title="disable various dpm features">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=68235&attachment=85578'>[review]</a>
disable various dpm features
I would suggest disabling various dpm features and see if you can narrow down
which, if any, help. This patch disables just about everything.
ni_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO) is what
actually sets the dynamic performance switching into motion. Prior to that the
hw is locked into the low performance level. I sounds like there is some bad
parameter that is causing a lock up when the smc enables state switching.
Separate from the patch can you also try changing the
ni_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO) call in
ni_dpm_set_power_state() to low (RADEON_DPM_FORCED_LEVEL_LOW) or high
(RADEON_DPM_FORCED_LEVEL_HIGH) rather than auto? See if you still get a lock
up.</pre>
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