Bug 115661 - External Soundcard prevents boot
Summary: External Soundcard prevents boot
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: USB (show other bugs)
Hardware: Intel Linux
: P1 high
Assignee: Greg Kroah-Hartman
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-04-01 00:02 UTC by Larry Tate
Modified: 2016-04-02 11:04 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.2.0-34-generic
Subsystem:
Regression: No
Bisected commit-id:

Attachments
PulseAudiolog (767.17 KB, text/x-log)
2016-04-01 00:02 UTC, Larry Tate 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Larry Tate 2016-04-01 00:02:02 UTC 
Created attachment 211321 [details]
PulseAudiolog

I have an external sound card--a Topping VX2. When plugged in to USB, the device prevents Ubuntu from booting properly. It hangs until I remove the USB cord from the device, then Ubuntu boots normally.

Once booted, the device can be recognized by Ubuntu, but then seems to nuke PulseAudio, leaving no devices in the Sound Settings.

The VX2 uses Via Technologies VT 1620A USB audio controller. I suspect that this may be the issue.

I've tried this with two separate VX2 devices, with the same results.

I see:

-110 connection time out
-71 protocol error
-19 no device

Attaching a Pulse Audio log here.

I'm running Ubuntu 15.10.
Comment 1 Greg Kroah-Hartman 2016-04-01 00:09:04 UTC 
On Fri, Apr 01, 2016 at 12:02:02AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=115661
> 
>             Bug ID: 115661
>            Summary: External Soundcard prevents boot
>            Product: Drivers
>            Version: 2.5
>     Kernel Version: 4.2.0-34-generic

Please send this to the alsa-devel@alsa-project.org mailing list.
Comment 2 Clemens Ladisch 2016-04-02 11:04:13 UTC 
Please do not send this to the alsa-devel list; these errors indicate a lower-level USB problem.

Please show the actual system log with these errors.
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