You have been subscribed to a public bug:
This issue occurs in both 16.04 and 18.04 on Dell Precision 7530
Before sleep, the sound settings show a single HDMI / Displayport "HDA
NVidia" sound device (see attachment)
Afterwards, there are several 'copies' of this device (see attachment) -
No sound comes out of any of the HDMI devices
Screen Captures + Logs included in .zip attached
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: audio dell hdmi
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HDMI Audio failing after resuming from sleep
https://bugs.launchpad.net/bugs/1809316
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