Comment # 32
on bug 101900
from Direx
(In reply to Andrew Nelson from comment #31) > I have been running into the same issue. The problem seems to be that AMDGPU > is reporting that it supports 7 speakers instead of 8 in the EID. HBR > formats work with 5.1 encoded audio, but not 7.1. For some reason, the > driver is configured to subtract 1 from the channel count before passing it > into the EID. I have removed this and confirmed that 7.1 HBR audio works. Jackpot, this is it. Just tried your patch and now all audio formats are working. I can confirm that the following formats can now be played back correctly on my RX480: - PCM 2.0 - PCM 5.1 - PCM 7.1 - Dolby Digital@5.1 - DTS@5.1 - Dolby TrueHD@7.1 - DTS HD-MA@7.1 - Dolby Atmos Excellent job. Can we please get this patch into drm-fixes, as it is cleary a bug fix and not a new feature.
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