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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Screen corruption on Cayman with dpm enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66932#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Screen corruption on Cayman with dpm enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66932">bug 66932</a>
from <span class="vcard"><a class="email" href="mailto:g02maran@gmail.com" title="Martin Andersson <g02maran@gmail.com>"> <span class="fn">Martin Andersson</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=66932#c4">comment #4</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=66932#c3">comment #3</a>)
> >
> > Well I think I'm already building radeon as a module since I have:
> > CONFIG_DRM=m
> > CONFIG_DRM_RADEON=m
> >
> > or am I missing something?
>
> That should be fine. I assumed you were building it in since you were
> messing with CONFIG_EXTRA_FIRMWARE.</span >
I have learnt something new today, CONFIG_EXTRA_FIRMWARE is not needed for
modules.
I tried RADEON_DPM_FORCED_LEVEL_LOW and RADEON_DPM_FORCED_LEVEL_HIGH, but they
didn't work either.
Then I commented out:
ni_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO);
With that I can boot the system and dpm seems to work, because the fan is nice
and quiet. Also cat /sys/kernel/debug/dri/64/radeon_pm_info says this:
uvd vclk: 0 dclk: 0
power level 0 sclk: 25000 mclk: 15000 vddc: 900 vddci: 950
Then (with RADEON_DPM_FORCED_LEVEL_AUTO enabled again) I commented out:
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetForcedLevels, 0) !=
PPSMC_Result_OK)
That resulted in screen corruption but it worked when I instead commented out:
if (ni_send_msg_to_smc_with_parameter(rdev, PPSMC_MSG_SetEnabledLevels, 0) !=
PPSMC_Result_OK)</pre>
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