Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. It only takes a minute to sign up.
Sign up to join this community
I'm using Kubuntu v20.04, which I launch using SDDM. The issue I'm facing is setting some environment variables for my Xsession. I use ~/.config/plasma-workspace/env/env.sh to export my environment variables, however, I'm observing that a few variables aren't getting set such as LD_PRELOAD. I can confirm this because echo $LD_PRELOAD returns nothing.
What should be a proper way of doing this?
These are my dotfiles: https://github.com/utkarshverma/dotfiles
After a long time, I finally came back to analysing this issue and embarrassingly found out that the exports were working, but I had two conflicting exports, through .zprofile and .xsessionrc for the same variable.
Also, I've noticed that for some reason, probably security related?, you can't simply inspect the LD_PRELOAD variable. It will always return empty.
Though the answer isn't much, I do feel it would be worthwhile to share how I tracked down the issue.
.xsession-errors which properly logs all stuff related to X. In that file, I could see that LD_PRELOAD was being set twice on logon.grep -rnw ~/* -e "export LD_PRELOAD". It clearly indicated the respective files which had the lines, .zprofile and .xsessionrc and I was able to fix the issue.Update: It seems that
LD_PRELOADwas beingunsetby KDE after sourcing~/.xsessionrcthat's whyexportwasn't reporting anything. I've moved theexportstatement to~/.zshrcfor now.
exporting variables in.sh(executable?) files in~/.config/plasma-workspace/env/is the officially supported way, it should work (and I can confirm it works on Arch Linux with KDE + SDDM). Where are you executingecho $LD_PRELOAD? (E.g. Bash in Konsole?) Did you check ifLD_PRELOADis unset/changed somewhere in your shell startup scripts?echo $LD_PRELOADin my terminal. Also, I'm only usingenv.shas a startup script so something else is off. And myenv.shis getting executed since other variables in it have been exported. I read~/.xsession_errorsand it does show$LD_PRELOADas being exported, however I can't find anything which might be unsetting it.