I believe I got a similar issue. Sound plays fine through the speakers, but when I plug in my headphones they do not work and the speakers stop playing sound too.
==> /proc/asound/card0/codec#0 <== Codec: Realtek ALC269VB
==> /proc/asound/card0/codec#3 <== Codec: Intel CougarPoint HDMI head: cannot open `cat' for reading: No such file or directory
==> /proc/asound/cards <== 0 [PCH ]: HDA-Intel - HDA Intel PCH
I believe I got a similar issue. Sound plays fine through the speakers, but when I plug in my headphones they do not work and the speakers stop playing sound too.
==> /proc/asound/ card0/codec# 0 <==
Codec: Realtek ALC269VB
==> /proc/asound/ card0/codec# 3 <==
Codec: Intel CougarPoint HDMI
head: cannot open `cat' for reading: No such file or directory
==> /proc/asound/cards <==
0 [PCH ]: HDA-Intel - HDA Intel PCH
==> /proc/asound/ card0/codec# 0 <==
Codec: Realtek ALC269VB