[SOLVED] HDMI audio not functioning

Question

I'm having trouble getting audio working. My setup is audio through HDMI, but I actually don't have a way to test audio through any other means, so I'm not sure if HDMI has anything to do with the problem.
My onboard video chipset is ATI Radeon HD 4250, and so I have added "radeon.audio=1" to my GRUB's boot entry, however nothing seemed to change. Where I seem to be stuck is that aplay will not pick up any sound devices:
$ aplay -l
aplay: device_list:252: no soundcards found...
From http://lkubuntu.wordpress.com/2011/07/2 … eshooting/ I was able to yield the following:
$ lspci -nn | grep '04[80][13]'
00:14.2 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) [1002:4383] (rev 40)
01:05.1 Audio device [0403]: Advanced Micro Devices [AMD] nee ATI RS880 HDMI Audio [Radeon HD 4200 Series] [1002:970f]
From some commands in the ALSA page at the wiki:
$ lsmod | grep '^snd' | column -t
$
$ ls -l /dev/snd
ls: cannot access /dev/snd: No such file or directory
No idea why almost all of the commands I'm seeing are returning the opposite of what they should. Any ideas?
Last edited by skoh-fley (2012-03-10 19:05:13)

Answer 1

Thanks for your replies guys! Using both of your posts' information I was able to get HDMI audio working. Here's what I did:
# modprobe -v snd-hda-intel
FATAL: Module snd-hda-intel not found.
At this point I found a post that suggested reinstalling kernel26:
# pacman -S kernel26
warning: linux-3.2.9-1 is up to date -- reinstalling
resolving dependencies...
looking for inter-conflicts...
Targets (1): linux-3.2.9-1
Total Installed Size: 57.45 MiB
Net Upgrade Size: 0.00 MiB
And after that all the commands starting working:
# modprobe -v snd-hda-intel
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/soundcore.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/core/snd.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/core/snd-timer.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/core/snd-page-alloc.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/core/snd-pcm.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/core/snd-hwdep.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/pci/hda/snd-hda-codec.ko.gz
insmod /lib/modules/3.2.9-1-ARCH/kernel/sound/pci/hda/snd-hda-intel.ko.gz
# cat /proc/asound/{cards,devices}
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfeb00000 irq 16
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xfe710000 irq 19
2: [ 0- 2]: digital audio capture
3: [ 0- 1]: digital audio playback
4: [ 0- 0]: digital audio playback
5: [ 0- 0]: digital audio capture
6: [ 0- 0]: hardware dependent
7: [ 0] : control
8: [ 1- 3]: digital audio playback
9: [ 1- 0]: hardware dependent
10: [ 1] : control
33: : timer
Using this information I just followed OrionFyre's instructions and the sound works perfectly! Thanks all!