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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [C220] Display goes blank with PCH PWM1 enabled warning in intel_display.c:7376/6900"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86105#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [C220] Display goes blank with PCH PWM1 enabled warning in intel_display.c:7376/6900"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86105">bug 86105</a>
from <span class="vcard"><a class="email" href="mailto:catalin.hritcu@gmail.com" title="Catalin Hritcu <catalin.hritcu@gmail.com>"> <span class="fn">Catalin Hritcu</span></a>
</span></b>
<pre>@Daniel:
Here Are the old values of these files:
$ cat /sys/module/snd_hda_intel/parameters/power_save
0
$ cat /sys/bus/pci/devices/0000:00:03.0/power/control
on
$ cat /sys/devices/pci0000:00/0000:00:02.0/power/autosuspend_delay_ms
10000
$ cat /sys/devices/pci0000:00/0000:00:02.0/power/control
on
I've now set them as you advised:
# echo "1" > /sys/module/snd_hda_intel/parameters/power_save
# echo "auto" > /sys/bus/pci/devices/0000:00:03.0/power/control
# echo "0" > /sys/devices/pci0000:00/0000:00:02.0/power/autosuspend_delay_ms
# echo "auto" > /sys/devices/pci0000:00/0000:00:02.0/power/control
Hope this will make this easier to reproduce. Will let you know as soon as it
happens again.</pre>
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