Comment 17 for bug 446395

I was able to lock the screen again after just running "gnome-screensaver" without any arguments.

The bug appeared again, and this time I got the output from the command "gnome-screensaver-command -l":

> The program 'gnome-screensaver' received an X Window System error.
> This probably reflects a bug in the program.
> The error was 'BadDrawable (invalid Pixmap or Window parameter)'.
> (Details: serial 1551 error_code 9 request_code 53 minor_code 0)
> (Note to programmers: normally, X errors are reported asynchronously;
> that is, you will receive the error a while after causing it.
> To debug your program, run it with the --sync command line
> option to change this behavior. You can then get a meaningful
> backtrace from your debugger if you break on the gdk_x_error() function.)