Arch Linux

TheOpethian

Member

Registered: 2016-02-20

Posts: 29

[solved]A lot of my applications seemed to have stopped working

Hey guys, I wasn't sure where the proper location for this post was so I just posted it here, I was without internet for a few months and when I finally updated Arch I ran into this issue where a lot of the applications I have such as Calibre or Okular refuse to start. Console output gives me this error.

[void@Ameer ~]$ okular
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

Reinstalling the application may fix this problem.
Aborted (core dumped)

I'm assuming this is an issue with Qt but I don't know why it happened or how to really fix it.

Last edited by TheOpethian (2018-02-16 21:05:38)

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,729

Re: [solved]A lot of my applications seemed to have stopped working

Partial update?

TheOpethian

Member

Registered: 2016-02-20

Posts: 29

Re: [solved]A lot of my applications seemed to have stopped working

Partial update?

Nope, I only -Syu. Never done a partial update in my life.

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,543

Website

Re: [solved]A lot of my applications seemed to have stopped working

Are you on Wayland?  If so, did you follow the wiki page on configuring qt5 to work on wayland?

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

TheOpethian

Member

Registered: 2016-02-20

Posts: 29

Re: [solved]A lot of my applications seemed to have stopped working

Are you on Wayland?  If so, did you follow the wiki page on configuring qt5 to work on wayland?

Pretty sure I'm on Xorg, though how does one check to be 100% sure?

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,543

Website

Re: [solved]A lot of my applications seemed to have stopped working

What WM/DE/DM do you use?  These would be informative (though strictly not 100% fool-proof):

pgrep Xorg
pgrep Wayland
echo $DISPLAY

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,863

Re: [solved]A lot of my applications seemed to have stopped working

echo $QT_QPA_PLATFORM_PLUGIN_PATH
ldd /usr/lib/qt/plugins/platforms/libqxcb.so
QT_QPA_PLATFORM_PLUGIN_PATH=/usr/lib/qt/plugins/platforms/ okular

Either you've a bad environment variable or some nonsense in ~/.config/QtProject** or you're using some static or out of distro Qt version (installation in /opt or so) or libqxcb.so doesn't exist or it links an absent library.

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ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,722

Re: [solved]A lot of my applications seemed to have stopped working

Is this an Architect installation?

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TheOpethian

Member

Registered: 2016-02-20

Posts: 29

Re: [solved]A lot of my applications seemed to have stopped working

Is this an Architect installation?

Haha no, no it's not.

Issue seems to have fixed itself after today's Qt5 update. Thanks a lot guys.