Bug#1118626: kwin-x11: Missing Build Depends breaks XInput integration, leading to many other problems

[Aurélien COUDERC <libre@coucouf.fr>]

Dear Ismail,

Le 23 octobre 2025 07:57:02 GMT+02:00, "A. Ismail" <a.h.ismail.dev@gmail.com> a écrit :
>Package: kwin-x11
>Version: 4:6.3.6-1
>Severity: normal
>X-Debbugs-Cc: a.h.ismail.dev@gmail.com
>
>Dear Maintainers,
>
>After upgrade to Plasma 6, I noticed that the Mouse Mark desktop effect is not
>smooth like it used to be and some other effects felt choppy. After
>investigation I found out that XInput integration was broken because CMake
>can't find libXi related headers. I installed libxi-dev and rebuilt kwin from
>Debian sources which fixed Xinput integration and now the problems are gone.
>
>Can you please fix Debian kwin source package (in trixie and sid) to iron out
>this issue? They need libxi-dev as build dependency.

Thanks for your bug report, I will have a look.

Could you please clarify which exact package and version you've modified to get it working ?

The bug report was opened against kwin-x11 version 6.3.6 but that version doesn't exist in Debian since kwin-x11 was first introduced with version 6.4.91 (=6.5 beta 2).


Thanks,
--
Aurélien