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policykit error SDDM

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Mr_Nrj
Posts: 1
Joined: 2021-04-12 07:53

policykit error SDDM

#1 Post by Mr_Nrj »

Hello.

I am facing an error while changing lockscreen from 'System settings'.

When my laptop gets lock after standby time say (5 minutes). I can't login back to my session because there is no input box for password. All I can see is a wallpaper of my previous lockscreen.

I tried to change the lockscreen but couldn't.

When I try to set defaults or try to remove previously installed lockscreen theme, I get this error :

DBus Backend error: service start org.kde.kcontrol.kcmsddm failed: The permission of the setuid helper is not correct.

I also cannot install new theme. It crashes SDDM.

I posted this thread on reddit and found that there must be a problem with my policykit. But didn't found solution of it.
I tried reinstalling policykit packages but that didn't worked as well. Then someone suggested to post this here in debian forum.

Please help me out with this

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