https://bugs.freedesktop.org/show_bug.cgi?id=106597
--- Comment #16 from Lukas Wunner <lu...@wunner.de> ---
Created attachment 139688
--> https://bugs.freedesktop.org/attachment.cgi?id=139688&action=edit
drm-next-4.18-wip debug patch 1
So, the HDA device's usage counter is 0, it has no active children and runtime
PM is allowed. Still, it's runtime active. Why is it not suspending? Here's a
little patch which litters relevant code with debug printks, hopefully this
will get us closer to the answer. Could you apply this on top of
drm-next-4.18-wip and attach the resulting dmesg output?
Oh and could you also try:
cat /sys/bus/pci/devices/0000:01:00.1/power/runtime_status
... to double check that runtime PM is enabled?
Thanks!
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