** Changed in: linux-oem (Ubuntu Bionic)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1882035
Title:
audio card disappeared after suspend device during audio playback Edit
Status in HWE Next:
New
Status in linux-oem package in Ubuntu:
New
Status in linux-oem source package in Bionic:
In Progress
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, machine 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.
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