I'm having the same problem, using one nVidia card with two monitors (laptop monitor + external LCD screen connected through d-sub contact), running Ubuntu 7.10.
It has always worked before, but today, the laptop screen goes black after gnome-screensaver starts, and stays black. I can only see the mouse cursor. The other monitor works fine. Running gnome-screensaver-preferences gives me: The program 'gnome-screensaver-preferences' received an X Window System error. This probably reflects a bug in the program. The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 343 error_code 8 request_code 78 minor_code 0) It is the same after I do "killall gnome-screensaver". Running glxinfo gives: name of display: :0.0 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 78 (X_CreateColormap) Serial number of failed request: 13 Current serial number in output stream: 15 As far as I know, I haven't changed anything since yesterday, when it worked, except for installing gdesklets. -- Lock Screen blanks screen instead of showing screensaver (on external monitor) https://bugs.launchpad.net/bugs/71030 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gnome-screensaver in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
