Bug 203945

Summary:	USB-2 keyboard on USB-C dock malfunction
Product:	Drivers	Reporter:	mcarans
Component:	USB	Assignee:	Greg Kroah-Hartman (greg)
Status:	RESOLVED INVALID
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	5.0.0-16-generic	Subsystem:
Regression:	No	Bisected commit-id:

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.