Hi and thanks for looking after your sound card :-)
Just a question w r t the 2.1 stuff - what alsa-lib version are you
using? Any release from 2015 should be fine, there was some improvements
during 2014 to the 2.1 stuff in specific.
On 2015-11-25 09:06, Nazar Mokrynskyi wrote:
Just want to remind once again, that without this patch microphone is
not working with Linux kernel 4.3+
Sincerely, Nazar Mokrynskyi
github.com/nazar-pc
Skype: nazar-pc
Diaspora:[email protected]
Tox:
A9D95C9AA5F7A3ED75D83D0292E22ACE84BA40E912185939414475AF28FD2B2A5C8EF5261249
On 11.10.15 17:52, Nazar Mokrynskyi wrote:
> Do you mean 2.1 mode won't work with all usb audio since surround
5.1 of usb audio is already using route plugin
What do you mean by "all usb audio"? In 4.1/5.1 mode LFE and all other
outputs work properly, it is just for 2.1, which works as stereo.
> If you don't have SPDIF output/input, you need to add your card in
USB-AUDIO.conf
Sound card has S/PDIF output, but not input. Not sure whether output
works properly though. I do not have speakers or any other hardware
with S/PDIF input to test it.
Sincerely, Nazar Mokrynskyi
github.com/nazar-pc
Skype: nazar-pc
Diaspora:[email protected]
Tox:
A9D95C9AA5F7A3ED75D83D0292E22ACE84BA40E912185939414475AF28FD2B2A5C8EF5261249
On 11.10.15 10:34, Raymond Yau wrote:
>
> In 2.1 mode LFE is not actually working at all, so it is removed.
Do you mean 2.1 mode won't work with all usb audio since surround 5.1
of usb audio is already using route plugin
USB-Audio.pcm.surround51.0 {
@args [ CARD ]
@args.CARD { type string }
@func refer
name {
@func concat
strings [
"cards.USB-Audio."
{ @func card_name card $CARD }
".pcm.surround51:CARD=" $CARD
]
}
default {
type route
ttable.0.0 1
ttable.1.1 1
ttable.2.4 1
ttable.3.5 1
ttable.4.2 1
ttable.5.3 1
slave {
pcm {
type hw
card $CARD
device 0
}
channels 6
}
}
}
http://git.alsa-project.org/?p=alsa-lib.git;a=blobdiff;f=src/conf/cards/USB-Audio.conf;h=ce3ae019f7f6fa91ca224074d12891217f242300;hp=8a6d9cac6ead765108e09c61914a84d290482556;hb=1af088e39b75a0a0897c7036487b143e983cd423;hpb=57b5076c30b3453ee843912c0aeb3df8dbee3f68
> With Linux 4.3-rc1+ Mic/Line are hw:%f,0,0 as it should be:
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/usb?id=5ee20bc792467d7d612157e0a9962765aa943b08
> So now we support both Linux 4.2.x- and 4.3-rc1+ setups.
> Also in Linux 4.3-rc1 S/PDIF input was detected incorrectly (there
is no such hardware input), so it is not present in config.
> ---
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1384952
Seem all usb audio with more than two playback devices are affected
since capture device of U7 is also device 1 before the patch
If you don't have SPDIF output/input, you need to add your card in
USB-AUDIO.conf
# If a device does not use the first PCM device for digital data,
the device
# number for the iec958 device can be changed here.
USB-Audio.pcm.iec958_device {
# "NoiseBlaster 3000" 42
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--
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic
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