I'm having the same problem with opening any opengl application. My setup is two nvidia cards with 3 monitors in xinerama using the nvidia binary drivers.
[EMAIL PROTECTED]:~$ glxgears X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 78 (X_CreateColormap) Serial number of failed request: 12 Current serial number in output stream: 18 Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0xb73b2767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb73b281e] #2 /usr/lib/libX11.so.6 [0xb7cb3518] #3 /usr/lib/libX11.so.6(XESetCloseDisplay+0x31) [0xb7c968d1] #4 /usr/lib/libGL.so.1 [0xb7ee64d5] #5 /lib/tls/i686/cmov/libc.so.6(exit+0xd4) [0xb7d89084] #6 /usr/lib/libX11.so.6 [0xb7cac63e] #7 /usr/lib/libX11.so.6(_XError+0xfe) [0xb7cac73e] #8 /usr/lib/libX11.so.6 [0xb7cb3e5c] #9 /usr/lib/libX11.so.6(_XReply+0x15a) [0xb7cb421a] #10 /usr/lib/libX11.so.6(XQueryExtension+0xaa) [0xb7ca206a] #11 /usr/lib/libX11.so.6(XInitExtension+0x3b) [0xb7c96d4b] #12 /usr/lib/libXext.so.6(XextAddDisplay+0x53) [0xb73c4443] #13 /usr/lib/libGL.so.1 [0xb7f06474] -- 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
