Bug 199791 - Phonic Helix Board 12 Universal: Recording empty
Summary: Phonic Helix Board 12 Universal: Recording empty
Status: RESOLVED INVALID
Alias: None
Product: Drivers
Classification: Unclassified
Component: Sound(ALSA) (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Jaroslav Kysela
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-05-21 20:34 UTC by Andreas Böhler
Modified: 2018-07-15 05:09 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.14.15
Subsystem:
Regression: No
Bisected commit-id:

Attachments
lsusb (19.18 KB, text/plain)
2018-05-21 20:34 UTC, Andreas Böhler 		Details
information from /proc/asound/card2/stream0 (435 bytes, text/plain)
2018-05-21 20:35 UTC, Andreas Böhler 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Andreas Böhler 2018-05-21 20:34:15 UTC 
Created attachment 276105 [details]
lsusb

I've got a Phonic Helix Board 12 Universal, which is a analog audio mixer plus USB/FireWire Audio Interface.

Recording using the FireWire interface works as intended (using the in-kernel ALSA driver), but recording using the USB interface results in total silence. Playback works for both connection methods.

I performed a firmware update which claimed to make the device compatible with macOS. Since then, the device is successfully detected by the kernel as well as Ardour 5.

Attached is lsusb -vvv output.
Comment 1 Andreas Böhler 2018-05-21 20:35:54 UTC 
Created attachment 276107 [details]
information from /proc/asound/card2/stream0
Comment 2 Andreas Böhler 2018-07-04 21:33:07 UTC 
As suggested on the alsa-user mailinglist, this is actually an Ardour/ALSA issue rather than a kernel issue. It works fine when using JACK as backend and I only ever tried Ardour.
Note You need to log in before you can comment on or make changes to this bug.