My headphones used to work on ubuntu on my dell studio 1558, but when I reinstalled the system they seems to stop working.
When I plug them in I don't hear anything, the speaker stop working but there is no sound on the headphones.
The headphone is detected on alsa mixer, and they work normally on Windows, I tried this workaround here http://ubuntuforums.org/showthread.php?t=302543&page=2 without a solution.
Any idea how to get them to work, thank you.
laptop:~$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xf0b00000 irq 22
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xcfeec000 irq 17