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[Bug][EHL] Runtime PM keeps active and "Unable to install hw " when aplay via HDMI #2061
Describe the bug
Runtime PM keeps active after system boot up, "Unable to install hw " when aplay via HDMI. Other pipline works ok. Also no HDMI jack detection in amixer contents.
Can't do bi-sect, since commit seems changed. But 20200413 kernel works OK. Here is dmesg when issue not reproduced with previous kernel. noIssue_drmDmesg.txt
EHL graphics device is not properly supported by i915 kernel module. It will skip the probing and setting the hdmi audio. Add i915.force_probe=4571 can bypass this issue.
Activity
libinyang commentedon May 7, 2020
EHL graphics device is not properly supported by i915 kernel module. It will skip the probing and setting the hdmi audio. Add i915.force_probe=4571 can bypass this issue.
sinahuang commentedon May 7, 2020
After adding i915.force_probe=4571 to "/boot/grub/grub.cfg" files, issue can't be seen. So track this i915 issue in https://gitlab.freedesktop.org/drm/intel/-/issues/1843, closed it.