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@linux.intel.com
Applied with Cc to stable now. Thanks.
Takashi