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kdesktop_lock: cannot unlock screensaver

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twilightomni

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Thursday, November 22nd 2007, 2:30am

kdesktop_lock: cannot unlock screensaver

Hello there. Recently installed OpenSUSE 10.3, and upgraded KDE 3.5.7 (included) to KDE 3.5.8.

I have a strange problem. When locking the screen (using the lock button, suspend/hibernate, or lid-close on my Toshiba laptop), the screensaver starts up; but when I try to unlock the screen, I often receive a message that says:

"Cannot unlock because the authentication system failed to work;
must kill kdesktop_lock (PID ....) ..."

Or something like that. I googled for "kdesktop_lock" and searched on pages, including forums here and at OpenSUSE-Forums. The only useful forum post I found was one from 2005 here. The responders said that the permissions on a program called 'kcheckpass' which kdesktop_lock uses were messed up, and that correcting them using chmod and chown would fix the problem. I have done both of those solutions, and it still doesn't work...perfectly.

The thing is, I'll try to unlock the screen five or six times, and it won't work -- then on the seventh time, it will. It's very finicky, and I don't know why it isn't working right all the time.

Does anyone know why? It's a brand-new system I installed, and aside from the KDE upgrade, I wouldn't think you could have a nontrivial problem like this out of the box.


Also: I'm not using Compiz or XGL or anything like that. Any help is much appreciated.