[Bug 101900] No HDMI HBR audio on Polaris (no TrueHD, no Atmos, no Neo:X, no HD Master audio) and static noise in sound when LPCM

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Dec 29 00:06:56 UTC 2017


--- Comment #19 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to lethalwp from comment #14)
> Created attachment 135979 [details]
> recording of audio LPCM output from RX550 card

FWIW, for years "direct" alsa + hdmi on recent cards has had issues.

It can work if there is enough cpu i/o load. Not quite enough load can sound
like that, no where near enough load can sound like it's stuck.

Pulse or jack don't have the issue as they do things differently.

See -


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