Bug 197787

Summary:	Lenovo Professional Keyboard not working
Product:	Drivers	Reporter:	David Demelier (markand)
Component:	USB	Assignee:	Greg Kroah-Hartman (greg)
Status:	NEW ---
Severity:	normal	CC:	jan.molnar, mpolovka, studenik
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	4.12	Subsystem:
Regression:	No	Bisected commit-id:

Description David Demelier 2017-11-06 07:56:41 UTC

Hello,

I have a Lenovo Professional Keyboard combo which is not working on Linux because it sends an extra byte (0x71) for each key.

Some people explains the situation in the followings links:

https://forums.lenovo.com/t5/Linux-Discussion/Professional-Wireless-Keyboard-not-working-on-Linux/td-p/3726486

https://github.com/y-trudeau/linux_lenovo_ultraslim_plus

Do you think it's possible to make usb keyboard driver able to understand this extra byte?

Comment 1 Greg Kroah-Hartman 2017-11-06 08:17:38 UTC

On Mon, Nov 06, 2017 at 07:56:41AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=197787
> 
>             Bug ID: 197787
>            Summary: Lenovo Professional Keyboard not working
>            Product: Drivers
>            Version: 2.5
>     Kernel Version: 4.12

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 Pavel Studeník 2018-05-06 14:15:14 UTC

I have installed Kernel 4.16.6-302.fc28.x86_64 (Fedora) and 4.15.0-20 (Uubntu) and the keyboard still doesn't work. Is ts possible to fixed it?

Comment 3 Michal Polovka 2019-02-11 09:46:38 UTC

Keyboard is sending extra byte with each key-press, as temporary workaaround you can use mapping in this repository (tested on Fedora 28 with 4.20 kernel)
https://github.com/miskopo/lenovo-professional-wireless-kbd-linux-driver