My problem is that when I set channel output to "Analog output
surround
5.1" (or 2.1 or 4.1), I hear no sound in front speakers, but in case of
5.1 or
4.1
You need pulseaudio lfe-filter for 2.1
http://cgit.freedesktop.org/pulseaudio/pulseaudio/log/?qt=grep&q=lfe-fil...
External 5.1 and 4.1 worked fine without lfe-filter. Fedora doesn't
package lfe-
filter and I'm more interested to get my 5.1 configuration back.
do you mean surround21 need 6 channel instead of channels with 5.1
internal
/external speaker ?
http://git.alsa-project.org/?p=alsa-lib.git;a=commitdiff;h=48f1b308cc66152eb
6db66742dd0d08d888cda8d;hp=5c4cd46810cef8850b037fca9e38ffd43b0bff22
No. When in KDE channel output is set to 2.1 it makes no difference what
is set
in alsamixer. When my external speakers are disconnected built-in front
left
and front right works on my laptop, but built-in subwoofer doesn't work
There
is no difference what channel output is set in alsamixer.
My laptop has built-in front left, front right, rear left, rear right and subwoofer and something is strange. When I set channel output to 5.1 or 4.1 and external speakers are disconnected, then front left and front right work as expected but
built-in
subwoofer is heard only if I test rear left channel (wrong channel
mapping?)
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...
Seem only two pairs of stereo speakers and internal subwoofer at left channel before this patch
ALSA: hda - Enable surround speakers (when line out is also present)