I can confirm this on Edgy with latest updates, Nvidia 1.0-9xxx Betadriver and Beryl running. i attach the crashreport.
** Attachment added: "error-report" http://librarian.launchpad.net/4625429/gnome-power-manager-Fehlerbericht.txt -- Power manager crashes under XGL and Compiz https://launchpad.net/bugs/61279 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
