Update to kwin 6.3.2.1-1 has introduced a bug

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1

The update to KDE Plasma 6.3.2, more specifically kwin 6.3.2.1-1 has introduced a bug (id=500819) from kwin 6.3.2 which causes a black screen after login while using Plasma Wayland with multiple monitors. This doesn’t affect Plasma X11. The bug has apparently been fixed in kwin 6.3.2.1-4.

I know it’s probably a niche issue but I have been struggling with this issue all day and slowly narrowed it down to this and confirmed it as I have 4 monitors and unplugging one has allowed me to login to Plasma Wayland again. Otherwise I’ve had no other issues with the update so far.

I’m a new user to the forums so I can’t include a link but on KDE’s bug tracker site it’s id=500819.

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bugs.kde.org - 500819 – SDDM / Desktop is not reachable since 6.3.2 with multiple monitors…

upgpkg: 6.3.2.1-4: Fix black screen with some multi monitor configurations (b601d572) · Commits · Arch Linux / Packaging / Packages / kwin · GitLab

$ mbn info kwin -q
Branch         : archlinux
Name           : kwin
Version        : 6.3.2.1-4
Repository     : extra
Build Date     : Tue 04 Mar 2025 17:25:48 
Packager       : Antonio Rojas <arojas@archlinux.org>
Branch         : unstable
Name           : kwin
Version        : 6.3.2.1-4
Repository     : extra
Build Date     : Tue 04 Mar 2025 17:25:48 
Packager       : Antonio Rojas <arojas@archlinux.org>
Branch         : testing
Name           : kwin
Version        : 6.3.2.1-1.1
Repository     : extra
Build Date     : Fri 07 Mar 2025 02:44:19 
Packager       : Philip Mueller <philm@manjaro.org>
Branch         : stable
Name           : kwin
Version        : 6.3.2.1-1.1
Repository     : extra
Build Date     : Fri 07 Mar 2025 02:44:19 
Packager       : Philip Mueller <philm@manjaro.org>
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I’m having the same issue, but on X11.

Edit: Tried all versions from 6.3.2.1-1 to 6.3.2.1-5, none works. Just read on “This Week in KDE” that it got fixed in 6.3.3. I hope that gets pushed to stable soon.

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kwin 6.3.2.1-1

Is this currently a required (dependency or security) update?
I also use a multi-screen setup and have added it to the igore ignore list for now.

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please switch to testing and see: Switching Branches - Manjaro

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For the benefit of passers-by, please see post #2 from @nikgnomic for a direct link to the bug referenced.

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