I've installed the alsa-utils package. Running amixer sset Master unmute returns the error amixer: Unable to find simple control 'Master',0.Executing alsamixer gives me the alsamixer application in the teriminal emulator, but <- and -> do nothing; I can only use m on an item listed as S/PDIF.beep works in the console, but no other audio works.Any help greatly appreciated.As per @jasonwryan's request, here's some information regarding my sound card:$cat /proc/asound/cards 0 [Generic        ]: HDA-Intel - HD-Audio Generic                      HD-Audio Generic at 0xe0244000 irq 27 1 [SB             ]: HDA-Intel - HDA ATI SB                      HDA ATI SB at 0xe0240000 irq 16$aplay -l**** List of PLAYBACK Hardware Devices ****card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]  Subdevices: 1/1  Subdevice #0: subdevice #0card 1: SB [HDA ATI SB], device 0: CX20590 Analog [CX20590 Analog]  Subdevices: 1/1  Subdevice #0: subdevice #0Meet my ~/.asoundrcpcm.!default {    type hw    card SB}ctl.!default {    type hw    card Generic}Verifying correct sound modules are loaded:$lsmod | grep '^snd' | column -tsnd_hda_codec_conexant  21937   1snd_hda_codec_generic   63087   1  snd_hda_codec_conexantsnd_hda_codec_hdmi      49263   1snd_hda_intel           26387   0snd_hda_controller      26938   1  snd_hda_intelsnd_hda_codec           112621  5  snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel,snd_hda_controllersnd_hwdep               17244   1  snd_hda_codecsnd_pcm                 88785   4  snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controllersnd_timer               26614   1  snd_pcmsnd                     73436   8  snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel$ls -l /dev/sndtotal 0drwxr-xr-x  2 root root       80 Jan 28 08:15 by-pathcrw-rw----+ 1 root audio 116,  2 Jan 28 08:15 controlC0crw-rw----+ 1 root audio 116,  5 Jan 28 08:15 controlC1crw-rw----+ 1 root audio 116,  4 Jan 28 08:15 hwC0D0crw-rw----+ 1 root audio 116,  8 Jan 28 08:15 hwC1D0crw-rw----+ 1 root audio 116,  3 Jan 28 08:15 pcmC0D3pcrw-rw----+ 1 root audio 116,  7 Jan 28 08:15 pcmC1D0ccrw-rw----+ 1 root audio 116,  6 Jan 28 08:15 pcmC1D0pcrw-rw----+ 1 root audio 116,  1 Jan 28 08:15 seqcrw-rw----+ 1 root audio 116, 33 Jan 28 08:15 timer$amixer scontrolsSimple mixer control 'IEC958',0A quick look for asoundrc.txt as mentioned here shows that it DNE on my system$pacman -Ql alsa-lib | grep asoundalsa-lib /usr/include/alsa/asoundef.halsa-lib /usr/include/alsa/asoundlib.halsa-lib /usr/include/alsa/sound/asound_fm.halsa-lib /usr/include/sys/asoundlib.halsa-lib /usr/lib/libasound.soalsa-lib /usr/lib/libasound.so.2alsa-lib /usr/lib/libasound.so.2.0.0###############################UPDATEI've been running Xfce4 as my Desktop Environment, and just recently switched to Gnome.  All audio now works.I'm leaving the thread open in case anybody can figure out why this should fix the issue. I'd really like to know.
Audio not working on Arch Linux
arch linux;audio