Public bug reported:
[Impact]
audio card disappeared after suspend device during audio playback Edit
[Fix]
Set trigger order for FE DAI links to SND_SOC_DPCM_TRIGGER_POST to trigger the
BE DAI's before the FE DAI's. This prevents the xruns seen on playback
pipelines using the link DMA.
[test]
With the patch, mantis n5 14 could be suspended successfully and
ALSA device still presents after leave suspension.
[Regression Potential]
Low. If some DSPs need the reverse order(FE->BE), we may get the same error.
** Affects: linux-oem (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Assignee: koba (kobako)
Status: New
** Package changed: linux (Ubuntu) => linux-oem (Ubuntu)
** Also affects: linux-oem (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux-oem (Ubuntu Bionic)
Assignee: (unassigned) => koba (kobako)
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https://bugs.launchpad.net/bugs/1882035
Title:
audio card disappeared after suspend device during audio playback Edit
Status in linux-oem package in Ubuntu:
New
Status in linux-oem source package in Bionic:
New
Bug description:
[Impact]
audio card disappeared after suspend device during audio playback Edit
[Fix]
Set trigger order for FE DAI links to SND_SOC_DPCM_TRIGGER_POST to trigger
the BE DAI's before the FE DAI's. This prevents the xruns seen on playback
pipelines using the link DMA.
[test]
With the patch, mantis n5 14 could be suspended successfully and
ALSA device still presents after leave suspension.
[Regression Potential]
Low. If some DSPs need the reverse order(FE->BE), we may get the same error.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-oem/+bug/1882035/+subscriptions
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