I installed Lubuntu 12.10 on my old laptop (Sharp Mebius PC-MR80J), but sound does not work. Here are things I tried.
aplay -l does not output anything.
When I run alsamixer, I see only one bar that says "Beep".
I installed pavucontrol, pulseaudio, pulseaudio-utils and libgtk-3-0 and checked output devices, but I only see "Dummy ouput" and there is no hardware output devices.
cat /proc/asound/cards returns the following.
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfeb38000 irq 40
cat /proc/asound/devices outputs the following.
1: : sequencer
2: [ 0- 1]: hardware dependent
3: [ 0- 0]: hardware dependent
4: [ 0] : control
33: : timer
The laptop was running Windows XP before and sound (both input and outpu) was working. What can I do now?