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
Hi, could I have at least a hint to know if it's to be supported soon, or one day, or never ? Thanks, Xav
(In reply to comment #1) > Hi, > > could I have at least a hint to know if it's to be supported soon, or one day, > or never ? > > Thanks, > Xav I am not a dev - but nothing below 4000 series claims to support 7.1 in the specs on amd.com - so even if the driver gets support a 2600 may not be capable hardware wise.
Even 5.1 (without having to resort to passthrough) would be better than plain stereo.
Hi, This is a very old report and this issue is likely to be fixed in the recent kernels. Could you try one, please? There was support for multiple channels added.
Sorry I obviously have missed this bug. The audio codec of the RV630 mentioned in this bug can only handle two channels, so the hardware simply doesn't support this. Later hardware generations do support HDMI multichannel audio.
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