Bug 203945 - USB-2 keyboard on USB-C dock malfunction
Summary: USB-2 keyboard on USB-C dock malfunction
Status: RESOLVED INVALID
Alias: None
Product: Drivers
Classification: Unclassified
Component: USB (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Greg Kroah-Hartman
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-06-21 07:34 UTC by mcarans
Modified: 2019-06-21 14:33 UTC (History)
0 users

See Also:
Kernel Version: 5.0.0-16-generic
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description mcarans 2019-06-21 07:34:44 UTC 
Upgrading to kernel package linux-image-5.0.0-16-generic and linux-image-5.0.0-17-generic cause the keyboard which is a USB 2 device connected to a USB C hub on my Dell XPS 13 to behave erratically. The keyboard is fine when plugged directly into the laptop's USB rather than into the USB C hub on 5.0.0-16, so it seems to be a USB-C problem in 5.0.0-16.

The previous kernel (linux-image-5.0.0-15-generic) doesn't have this problem.
Comment 1 Greg Kroah-Hartman 2019-06-21 07:50:59 UTC 
On Fri, Jun 21, 2019 at 07:34:44AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=203945
> 
>             Bug ID: 203945
>            Summary: USB-2 keyboard on USB-C dock malfunction
>            Product: Drivers
>            Version: 2.5
>     Kernel Version: 5.0.0-16-generic

All USB bugs should be sent to the linux-usb@vger.kernel.org mailing
list, and not entered into bugzilla.  Please bring this issue up there,
if it is still a problem in the latest kernel release.
Comment 2 mcarans 2019-06-21 14:33:09 UTC 
I will close as a firmware update has resolved the issue.
Note You need to log in before you can comment on or make changes to this bug.