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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - (DC 4.15-rc2) WARNING: CPU: 4 PID: 75 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:601 dm_suspend+0x4e/0x60 [amdgpu]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104064#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - (DC 4.15-rc2) WARNING: CPU: 4 PID: 75 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:601 dm_suspend+0x4e/0x60 [amdgpu]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104064">bug 104064</a>
from <span class="vcard"><a class="email" href="mailto:alexdeucher@gmail.com" title="Alex Deucher <alexdeucher@gmail.com>"> <span class="fn">Alex Deucher</span></a>
</span></b>
<pre>(In reply to taijian from <a href="show_bug.cgi?id=104064#c11">comment #11</a>)
<span class="quote">> Addendum: What DOES work now without crashing the system is dynamically en-
> and disabling the dGPU via
>
> # echo "\\_SB.PCI0.PEG0.PEGP._{OFF|ON}" > /proc/acpi/call
>
> So that is definitely progress!</span >
Are you messing with that while the driver is loaded? Doing so will cause
problems because you're changing the hw state behind the driver's back.</pre>
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