I have been using plasma 5 session which works. I can see the lxqt session in the DM login screen. When I select lxqt session, desktop does not start, I cannot see any messages. Screen blinks and returns to DM login screen. DM is KDM.
I also have openbox installed, which also appears in the DM login screen. I can log in to openbox itself but cannot do anything because KB doesn’t work and pointer clicks do not work so I have to ctrl-alt-backspace out. The mouse pointer stays on the windec and so all I can do is move the first window I open.
I started openbox session, opened xterm and ran lxqt-config and lxqt-panel. Both worked fine ( they also work from KDE). startlxqt gave segmentation fault.
In openbox, if I open kconsole and happen to move the cursor anywhere on to the decoration, the cursor remains trapped there and I cannot do anything except kill the session with CAB. This doesn’t happen with xterm.
I decided to debug the script startlxqt with ‘bash -x’ and found the following -
It segfaults at the last line namely, “exec lxqt-session” .
So I ran lxqt-session from xterm without any issues, it even displays the suse welcome screen.
Next, I ran exec lxqt-session from the xterm and it still worked fine.
when I run startlxqt, I get segfault again.
I tried lxqt myself now in my Tumbleweed VM, and my first suspicion was actually true…
It is indeed a Qt5 version conflict:
The lxqt platform plugin for Qt5 (package lxqt-qtplugin) is still built against Qt5 5.3.2 (build date 15th of November), while Qt5 has been upgraded to 5.4.0 in Tumbleweed already.
Uninstall lxqt-qtplugin (or comment out/remove the line ‘export QT_QPA_PLATFORMTHEME=lxqt’ in /usr/bin/startlxqt) and it should work.
When the package is rebuilt/updated the next time, the problem should be gone.
true, that fixed it. I actually like lxqt - it is fast, functional and even KDE apps start up faster from lxqt than from KDE. I can switch to it full time if it had a networkmanager applet- that is the only missing item that is a showstopper. Also, I am unable to create desktop icons- nothing happens after I try to create them. Of course, that is not a showstopper as the menu and terminal are available to launch apps.