~/.session-errors includes no interesting information... OK, this was the first time I did a backtrace but it seems not to work (the appropriate gdbsym package was installed before):
gdb gnome-screensaver 2>&1 | tee gdb-gnome-screensaver.txt GNU gdb 6.4.90-debian Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i486-linux-gnu"...Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1". (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) break gdk_x_error Function "gdk_x_error" not defined. Make breakpoint pending on future shared library load? (y or [n]) (gdb) run Starting program: /usr/bin/gnome-screensaver [Thread debugging using libthread_db enabled] [New Thread -1222248784 (LWP 16663)] Program exited normally. (gdb) The program 'gnome-screensaver' received an X Window System error. This probably reflects a bug in the program. The error was 'BadValue (integer parameter out of range for operation)'. (Details: serial 4596 error_code 2 request_code 135 minor_code 15) (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.) backtrace No stack. (gdb) -- Lock Screen not working anymore https://launchpad.net/bugs/68123 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
