I have installed Ubuntu 12 and i cant see any volume control; no audio player can detect any sound card and nothing shown on the System Settings -> Sound -> Output tab.
However, I can see my hardware by typing this command :
aplay -l
Output:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: HDA Generic [HDA Generic]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: U0x4d90x20 [USB Device 0x4d9:0x20], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
How can I activate sound ?
Edit:
This info may help for the solution :
lspci | grep Audio
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)
04:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Cedar HDMI Audio [Radeon HD 5400/6300 Series]
lspci -vvv