Focusrite Scarlett 8i6 silent input stream

[Claudio Cabral]

On Tue, Mar 29, 2022 at 07:18:11PM +0200, ZTube wrote:
> I'm trying to get my Focusrite Scarlett 8i6 to run with alsa, however
> while the sound output to the device works fine, the input does not and
> merely delivers a silent stream. Since I can't find any reason for the
> input stream to be completely silent I suspect this might be a driver bug.
Hi ZTube,

did you follow the setup instructions described here?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/usb/mixer_scarlett_gen2.c

There's also a bug with the saffire range currently that prevents
a record stream to be started after a playback stream.
I suspect the bug is related to the usb audio driver and the
handling of implicit feedback mode, but I haven't had the 
to confirm this yet.

Best,
Claudio Cabral
> 
> $ arecord -D hw:0,0 -f S32_LE -r 48000 -c 10 | aplay
> 
> just results in complete silence
> 
> 
> I'd be happy to provide more logs/detail if needed. Any idea what might
> be going on?
> 
> Thanks,
> 
> ZTube
> 
> [alsa-info.sh] https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpaste.debian.net%2F1236037%2F&data=04%7C01%7Cclca%40bang-olufsen.dk%7Cf4e40b9d3b5f495e60a208da11a84759%7C210d08b883f7470abc96381193ca14a1%7C0%7C0%7C637841711889888530%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000&sdata=i5LZbJ9LT13EfOoMl5khr37s1aurziKkMLEl1dqPI5w%3D&reserved=0
>