drm-devel-kmod: no sound after monitor standby
Yuri Pankov
yuripv at yuripv.net
Mon Nov 12 05:22:04 UTC 2018
Hi,
Using drm-devel-kmod-4.16.g20181027_1 with Intel Iris Plus Graphics 650
connected to monitor via HDMI. Once monitor is back from standby,
there's no sound, however pindump seems to report everything is ok
(connected):
hdaa1: Dumping AFG pins:
hdaa1: nid 0x as seq device conn jack loc color misc
hdaa1: 3 18560010 1 0 Digital-out Jack Digital 0x18 Unknown 0
hdaa1: Caps: OUT Sense: 0xc0000000 (connected, ELD
valid)
hdaa1: NumGPIO=0 NumGPO=0 NumGPI=0 GPIWake=0 GPIUnsol=0
I have found an easy workaround for this using `devctl suspend hdacc1;
devctl resume hdacc1`, but also wondering what would be correct way of
solving this? Are the missing functions reported in dmesg somehow
related, especially the suspend/resume ones (pasted below)?
__pm_runtime_resume not implemented -- see your local kernel hacker
__pm_runtime_suspend not implemented -- see your local kernel hacker
pm_runtime_set_autosuspend_delay not implemented -- see your local
kernel hacker
__pm_runtime_use_autosuspend not implemented -- see your local kernel hacker
TIA for any hints/pointers.
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