[alsa-devel] No mixers on ATI RS780 Azalia
tiwai at suse.de
Wed May 26 14:10:26 CEST 2010
At Wed, 26 May 2010 14:04:27 +0200 (CEST),
Jan Engelhardt wrote:
> I have here a Samsung 320MXn2 monitor/mainboard (typical x86_64
> environment) where I cannot get sound output to the internal speakers
> To start, there seem to be two sound cards:
> lspci/lspci -n:
> 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
> 01:05.1 Audio device: ATI Technologies Inc RS780 Azalia controller
> 00:14.2 0403: 1002:4383
> 01:05.1 0403: 1002:960f
> 0 [SB ]: HDA-Intel - HDA ATI SB
> HDA ATI SB at 0xf0500000 irq 16
> 1 [HDMI]: HDA-Intel - HDA ATI HDMI
> HDA ATI HDMI at 0xf0110000 irq 19
> The soundcard responsible for the internal speaker is the 01:05.1/"HDMI"
Hmm? HDMI output as the "internal" speaker is abnormal.
> Under Windows XP, I see the following mixer elements for it:
> * Master Volume
> * Wave
> * SW Synth
> * CD Player
> Subsequently, there is sound (once I bump the volumes on these).
There are definitely for the onboard sound, not for HDMI.
> However, in Linux up to including 2.6.34, I only see a single mixer
> * IEC958/S/PDIF
That's correct for HDMI. HDMI has no volume control - it's a digital
> mplayer etc. all successfully write to the device, but since there are
> not any further mixer controls, I can't unmute the essential channels.
> alsa-utils is version 1.0.21, from openSUSE 11.2 x86_64.
Judging from your description, the problem is likely that the onboard
sound device isn't set up properly but only HDMI one. Please give
alsa-info.sh output running on your system (run with --no-upload
option) for further analysis.
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