Hello, Karl. On Sat, Jan 25, 2025 at 09:00:12 +0100, k...@aspodata.se wrote: > Alan Mackenzie: > ... > > Then I attempt to use alsamixer to unmute the speakers and, hopefully get > > some sound out of them. This is where my problems start.
> > alsamixer displays just one object, labelled S/PDIF in the middle of the > > screen. I don't have an S/PDIF connection, just an ordinary audio cable > > with a green 3.5 mm jack plug at each end. > ... > I have: > # aplay --list-devices > **** List of PLAYBACK Hardware Devices **** > card 0: SB [HDA ATI SB], device 0: ALC888 Analog [ALC888 Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 0: SB [HDA ATI SB], device 1: ALC888 Digital [ALC888 Digital] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: NVidia [HDA NVidia], device 3: Generic Digital [Generic Digital] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 2: M1010LT [M Audio Delta 1010LT], device 0: ICE1712 multi [ICE1712 > multi] > Subdevices: 0/1 > Subdevice #0: subdevice #0 > And if I do alsamixer -c 1 I also get just one s/pdif in the middle of > the screen, the graphics card appearantly have one. I got them working (sort of) in the end, I was just lacking a USB sound driver. Just a point, the documentation of all these commands is shockingly bad: alsamixer critically depends on /etc/asound.conf, but doesn't even mention it in its man page. It would appear that /etc/asound.conf is wholly undocumented anywhere. aplay likewise just says what its options do, without saying, for example, what form the "name" following -D has, and what its semantics are. Get this wrong and the half error message you get is just "file not found". Last night I booted up the Gentoo live CD, from around 6 months ago, to see if that would give me a clue, via dmesg, what driver I was missing; no, that didn't work, it just gave an error message for the sound. > alsamixer -c 0 shows the motherboard interface, > alsamizer -c 2 shows the pci one. > Perhaps you have more than one interface. Indeed, something comes out of the HDMI socket, too. That was quite troublesome when I was trying to debug things. > /// > There is a debug tool /usr/sbin/alsa-info.sh if you install > media-sound/alsa-utils > You can possible get better help at linux-audio-user at > lists.linuxaudio.org linuxaudio.org didn't actually look too helpful - they're more into helping people run music creation programs than configuring sound cards. > Regards, > /Karl Hammar -- Alan Mackenzie (Nuremberg, Germany).
