My laptop has ATI IXP SB4x0 High Definition Audio and I can get sound with built-in speakers but when I try plug the headphones its not working... in Alsamixer headphones is checked...
00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01)
here is my modprobe.conf
# ALSA portion
alias char-major-116 snd
alias snd-card-0 snd-hda-intel
# module options should go here
options snd-card-0 index=0
options snd-hda-intel index=0 model=lenovo
# OSS/Free portion
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0
# card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
In volume control HDA ATI SB used and in switches section headphones selected.I use model=lenovo because i cant get sound working without that...Maybe something wrong..I attached alsa mixer pics..
MY system is F9 i386 with latest updates pulse audio installed.