The fix provided by Bryce Harrington at https://bugs.launchpad.net/ubuntu/+source/gnome- screensaver/+bug/71030/comments/3 does not work on 8.04. I can killall gnome-screensaver but I still can't launch gnome-screensaver- preferences. I get the same:
The error was 'BadColor (invalid Colormap parameter)'. (Details: serial 254 error_code 12 request_code 1 minor_code 0) I have the same symptoms as he, and an additional one: in nvidia- settings, when I click on OpenGL/GLX Information, nvidia-settings crashes with this error: The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 303 error_code 8 request_code 78 minor_code 0) Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0xb749b767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb749b81e] #2 /usr/lib/libX11.so.6 [0xb78ca518] #3 /usr/lib/libX11.so.6(XESetCloseDisplay+0x31) [0xb78ad8d1] #4 /usr/lib/libGL.so.1 [0xb72754d5] #5 /lib/tls/i686/cmov/libc.so.6(exit+0xd4) [0xb775c084] #6 /usr/lib/libgdk-x11-2.0.so.0 [0xb7bb4637] #7 /usr/lib/libX11.so.6(_XError+0xfe) [0xb78c373e] #8 /usr/lib/libX11.so.6 [0xb78cae5c] #9 /usr/lib/libX11.so.6(_XReply+0x15a) [0xb78cb21a] #10 /usr/lib/libX11.so.6(XQueryExtension+0xaa) [0xb78b906a] #11 /usr/lib/libX11.so.6(XInitExtension+0x3b) [0xb78add4b] #12 /usr/lib/libXext.so.6(XextAddDisplay+0x53) [0xb7889443] #13 /usr/lib/libGL.so.1 [0xb7295474] I have 3 nvidia cards, 3 monitors. ** Attachment added: "dmesg and xorg.conf" http://launchpadlibrarian.net/15496353/dmesg.and.xorg.conf.zip -- 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 subscribed to gnome-screensaver in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
