On Wed, 26 Aug 2020 19:03:06 +0200, Kai Vehmanen wrote: > > When system is suspended with active audio playback to HDMI/DP, two > alternative sequences can happen at resume: > a) monitor is detected first and ALSA prepare follows normal > stream setup sequence, or > b) ALSA prepare is called first, but monitor is not yet detected, > so PCM is restarted without a pin, > > In case of (b), on i915 systems, haswell_verify_D0() is not called at > resume and the pin power state may be incorrect. Result is lack of audio > after resume with no error reported back to user-space. > > Fix the problem by always verifying converter and pin state in the > i915_pin_cvt_fixup(). > > BugLink: https://github.com/thesofproject/linux/issues/2388 > Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx> Applied with Cc to stable now. Thanks. Takashi
