On 3/23/09, Russ Dill <[email protected]> wrote: > I have a laptop with an HDMI output. In Vista, I can get the Realtek > HD audio driver to pass audio through the HDMI interface. In Linux, no > amount of fiddling with IEC958 switiches and PCM devices will get > audio to come through the HDMI interface. > > 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 10) > [...] > 00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition > Audio Controller (rev 01) > [...] > 01:00.0 VGA compatible controller: ATI Technologies Inc M56P [Radeon > Mobility X1600] > > An alsa developer was thinking that since the video chip interfaces > with the TMDS encoder chip and must somehow be involved. Is anyone > aware of any registers or bits that would enable HDMI audio > pass-through?
Native HDMI audio support is only available on RS6xx/R6xx/R7xx chips. I suspect there is either some platform specific magic required in to get it to work (i.e., some external component does the audio/video mixing), or your laptop's oem used an external hdmi encoder. Can you send me your video bios? as root: cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom Alex _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
