No panel or desktop when the compositor's full path is used

[knm100]

After installed lxqt-wayland-session, and start lxqt(wayland) form sddm, It looks like I login labwc, no desktop and lxqt-panel.
I can start lxqt-session by following script file made by you( I comment out something)
startlxqtlabwc.txt

[stefonarch]

If you try just startlxqtwayland from tty what errors do you get?

[knm100]

If you try just startlxqtwayland from tty what errors do you get?

Please see the following log.txt
log.txt

by the way, black screen is beacuse I didn't install the screen background progame like swaybg.

[stefonarch]

Those are all errors of labwc. It looks like you didn't choose any compositor in "Session Settings" yet, so it should load only lxqt-config-session and a notification about choosing a compositor.

[knm100]

Please see the video of choosing compositor

choose.compositor.mp4

[stefonarch]

If you add just "labwc" in the dropdown, without searching for it? Have to look what happens with the full path (e.g. /usr/bin/labwc) in the script, could be messy.

[stefonarch]

Confirmed, using full path creates this issue. Will look into it later, thanks for reporting. Anyway: all installed compositor appear in the dropdown, so there is no need for searching supported compositors.

[stefonarch]

It's quite simple what happened: the string /usr/bin/labwc wasn't recognised as valid compositor and it fell back to default labwc with or without ~/.config/labwc/ .

[knm100]

Thanks, Worked for me