Could you also add the output from the following command run as normal user please?
- Code: Select all
aplay -L
lightblue wrote:/proc/asound/card0/codec#0:Codec: Realtek
ALC887-VD- Code: Select all
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC887-VD: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:line
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x1b/0x0/0x0/0x0/0x0)
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: dig-out=0x11/0x0
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: inputs:
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: Front Mic=0x19
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: Rear Mic=0x18
Oct 07 22:03:58 localhost kernel: snd_hda_codec_realtek hdaudioC0D0: Line=0x1a
That is the important part. With the automatic configuration for this codec, it doesn't know anything about 5.1 sound.
Your model isn't even listed in the kernel documentation:
https://www.kernel.org/doc/Documentatio ... Models.txtAnd others have the same problem, no 5.1 profiles offered:
http://ubuntuforums.org/showthread.php?t=2209364Some have even recommended to get the Realtek linux driver from
http://www.realtek.com.tw/ and compile and use that - IMHO that might cause more problems.
What you still can try is to run
alsamixer and press F6 and see if there are some further mixer options or channels that can be enabled/disabled.
And google for something like "linux ALC887-VD" and you will see that a lot of people have or had issue with that codec.