<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - No HDMI HBR audio on Polaris (no TrueHD, no Atmos, no Neo:X, no HD Master audio) and static noise in sound when LPCM on amdgpu Xorg driver" href="https://bugs.freedesktop.org/show_bug.cgi?id=101900#c31">Comment # 31</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - No HDMI HBR audio on Polaris (no TrueHD, no Atmos, no Neo:X, no HD Master audio) and static noise in sound when LPCM on amdgpu Xorg driver" href="https://bugs.freedesktop.org/show_bug.cgi?id=101900">bug 101900</a> from <a class="email" href="mailto:andrew.s.nelson@gmail.com" title="Andrew Nelson <andrew.s.nelson@gmail.com>"> Andrew Nelson</a> <pre>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. Patch below: diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c index 8bfb4577b4d5..5dcc685a1379 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c @@ -557,7 +557,7 @@ void dce_aud_az_configure( /* fill audio format data */ set_reg_field_value(value, - audio_mode->channel_count - 1, + audio_mode->channel_count, AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, MAX_CHANNELS);</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>