[gentoo-user] Re: AMD hdaudio: why do I have two audio devices and two mixers?
On 03/31/2012 10:25 PM, Sebastian Beßler wrote: Then the mixer from kde segfaulted and the sound was gone as pulseaudio then prefered HDMI over my real soundcard. Well, I just spent an hour figuring out how to fix that problem :) I assume your HDMI card is sink number 0 and the analog device is sink number 1. That's how it works in my new machine, anyway. #grep sink /etc/pulse/client.conf default-sink = 1 I changed the 0 to 1 and now everything works normally. As for any kde app segfaulting.
[gentoo-user] Re: AMD hdaudio: why do I have two audio devices and two mixers?
On 03/30/2012 09:34 AM, Alex Schuster wrote: walt writes: 00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series] Subsystem: Lenovo Device 3625 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel 00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01) Subsystem: Lenovo Device 3625 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel Probably those are HDMI and 'normal' device. I had similar problems on my sister's PC. First, thanks to all who replied. All the answers were helpful and the lightbulb is slowly getting brighter :) I finally looked up HDMI on Wikipedia. Software is driven by hardware and this new machine is the only HDMI equipment I've ever used, so I never had any need to understand it before now. Now it's clear to me why there are two different sound devices on this machine -- HDMI is a completely different animal and needs different harware and drivers. So, thanks for clearing that up for me. Maybe someday I'll actually want to use the HDMI hardware for something ;) My solution was to edit /usr/share/alsa/alsa.conf, and change defaults.ctl.card and defaults.pcm.card from 0 to 1. I must have the syntax wrong in my alsa.conf, but I finally edited /usr/share/alsa/alsa.conf and changed the default values to 1. Now alsamixer comes up with the right mixer displayed, thanks. All apps but audacious still use the wrong mixer/card in spite of the new defaults, though. I'm finally understanding the value of pulseaudio as a side-effect of buying this new computer. Now I'm recompiling everything with the pulse useflag, something I thought I'd never do :/ I think I can use pulse to solve this problem IIUC. Here goes :)
Re: [gentoo-user] Re: AMD hdaudio: why do I have two audio devices and two mixers?
On 31.03.2012 22:50, walt wrote: I'm finally understanding the value of pulseaudio as a side-effect of buying this new computer. Now I'm recompiling everything with the pulse useflag, something I thought I'd never do :/ I think I can use pulse to solve this problem IIUC. Here goes :) As some of the features of pulseaudio are quite nice I set pulseaudio in make.conf and build everything using that flag new. First pulseaudio worked as it should, I was able to listen to 3 songs and a Youtube video. Then the mixer from kde segfaulted and the sound was gone as pulseaudio then prefered HDMI over my real soundcard. Even with an hour of debugging I was unable to fix pulseaudio so now I switch back. I hope your results are better then mine. Greetings Sebastian Beßler signature.asc Description: OpenPGP digital signature
[gentoo-user] Re: AMD hdaudio: why do I have two audio devices and two mixers?
walt wrote: Fresh gentoo install on new lenovo desktop. Both linux and win7 (lenovo installed) tell me that this machine has two audio devices: 00:01.1 Audio device: Advanced Micro Devices [AMD] nee ATI BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series] Subsystem: Lenovo Device 3625 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel That's the HDMI output of your integrated GPU. All AMD graphics, including the APU you have, come with integrated HDMI Audio. 00:14.2 Audio device: Advanced Micro Devices [AMD] Hudson Azalia Controller (rev 01) Subsystem: Lenovo Device 3625 Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel This is the one you have to use for laptop audio. I spent an entire frustrating day discovering that the reason I have no sound is that every app wants to use /dev/mixer when only /dev/mixer1 actually works :( Only some apps (like audacious) will let me choose which mixer to use, and those apps work perfectly. Anyone else seen this before, I hope? Got a fix? I think you have to make the second one the default audio device. Possibly by editing the alsa.conf files found in /etc/modprobe.d and /usr/share/alsa. This thread may help : http://www.linuxquestions.org/questions/gentoo-87/set-default-sound- card-796566/ HTH
