[Bug 86105] [C220] Display goes blank with PCH PWM1 enabled warning in intel_display.c:7376/6900

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86105

--- Comment #9 from Catalin Hritcu <catalin.hritcu at gmail.com> ---
@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.

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