I have two problems:
I am unable to use 4-channel audio when viewing the movies with vlc. When checking the sound is also only two front channel played from all 4.
And also closed the subwoofer. This is a problem similar to this issue: Subwoofer not working in Dell Inspiron 7720
Can anybody help?
My data:
My notebook is Samsung NP550P5C
$ uname-a
Linux samsung-np550-u 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86-64 x86-64 x86-64 GNU/Linux
$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family) High Definition Audio Controller (rev 04)
$ cat /proc/asound/card0/codec* | grep Codec
Codec: Realtek ALC269VC
Codec: Intel PantherPoint HDMI
