https://bugs.freedesktop.org/show_bug.cgi?id=33399
Summary: No HDMI PCM mutichannel audio Product: DRI Version: XOrg CVS Platform: All OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: xavier.bestel@free.fr
Hi,
using a HD 2600, audio over HDMI is stereo-only. The only mean to have multichannel (e.g. 5.1) is to use passthrough, but true multichannel (e.g. 8 channels PCM) isn't supported by the driver, although it should be supported by the HDMI standard.
Here's the excerpt from alsa-info.sh concerning the card: Codec: ATI R6xx HDMI Address: 0 AFG Function Id: 0x1 (unsol 0) Vendor Id: 0x1002aa01 Subsystem Id: 0x00aa0100 Revision Id: 0x100000 No Modem Function Group found Default PCM: rates [0x40]: 48000 bits [0x2]: 16 formats [0x1]: PCM Default Amp-In caps: N/A Default Amp-Out caps: N/A GPIO: io=0, o=0, i=0, unsolicited=0, wake=0 Node 0x02 [Audio Output] wcaps 0x201: Stereo Digital Control: name="IEC958 Playback Con Mask", index=0, device=0 Control: name="IEC958 Playback Pro Mask", index=0, device=0 Control: name="IEC958 Playback Default", index=0, device=0 Control: name="IEC958 Playback Switch", index=0, device=0 Device: name="HDMI 0", type="HDMI", device=3 Converter: stream=1, channel=0 Digital: Enabled GenLevel Digital category: 0x2 Node 0x03 [Pin Complex] wcaps 0x400381: Stereo Digital Pincap 0x00000094: OUT Detect HDMI Pin Default 0x18560010: [Jack] Digital Out at Int HDMI Conn = Digital, Color = Unknown DefAssociation = 0x1, Sequence = 0x0 Pin-ctls: 0x40: OUT Unsolicited: tag=00, enabled=0 Connection: 1 0x02
Full data is at http://www.alsa-project.org/db/?f=b3f67a0890f9878b7b3f345578e24eda0aaa59ac
Thanks, Xav