Arch Linux

mpausch

Member

Registered: 2009-01-02

Posts: 28

[solved] Plasma(Wayland) doesn't work after update of libdisplay-info

Today I did "pacman -Syu", as I already did yesterday.
But after todays updates I wasn't able to login to Plasma(Wayland) anymore. Authentication worked, but then I always got thrown back to the sddm login screen.
Logons to Plasma(X11) worked.

after some search I found following error in journalctl:

kwin_wayland_wrapper[852]: /bin/kwin_wayland: error while loading shared libraries: libdisplay-info.so.1: cannot open shared object file: No such file or directory

according to pacman.log libdisplay-info got updated today:

[2024-06-22T21:13:28+0200] [ALPM] upgraded libdisplay-info (0.1.1-3 -> 0.2.0-1)

as first test, I created a symlink libdisplay-info.so.1 -> libdisplay-info.so.0.2.0  in /usr/lib.
Since then I could login to Plasma(Wayland) again.

Last edited by mpausch (2024-06-23 06:58:59)

mpausch

Member

Registered: 2009-01-02

Posts: 28

Re: [solved] Plasma(Wayland) doesn't work after update of libdisplay-info

I know, symlinking this way isn't the best idea, but for a first shot it was OK for me :-)

Downgrading of libdisplay-info, of course, also works and should be the preferred solution :-)

mpausch

Member

Registered: 2009-01-02

Posts: 28

Re: [solved] Plasma(Wayland) doesn't work after update of libdisplay-info

update to kwin 6.1.0-3 solves the issue:
https://gitlab.archlinux.org/archlinux/ … mmits/main

$ ldd /usr/bin/kwin_wayland | grep libdisplay
        libdisplay-info.so.2 => /usr/lib/libdisplay-info.so.2 (0x00007dc11d035000)

Sidekick

Member

Registered: 2024-06-23

Posts: 54

Re: [solved] Plasma(Wayland) doesn't work after update of libdisplay-info

Had the same issue, in my case it was a slightly outdated mirror (tier 2) that had pulled the libdisplay-info but not the kwin update.