I've just discovered that xvinfo does this too (though it worked before so it should be a new but similar issue). From Xorg.log:
Backtrace: 0: /usr/X11R6/bin/X(xf86SigHandler+0x71) [0x487521] 1: /lib/libc.so.6 [0x2adcc04f2d40] 2: /usr/X11R6/bin/X(Dispatch+0x120) [0x44ecb0] 3: /usr/X11R6/bin/X(main+0x455) [0x4379d5] 4: /lib/libc.so.6(__libc_start_main+0xf4) [0x2adcc04df8e4] 5: /usr/X11R6/bin/X(FontFileCompleteXLFD+0x231) [0x436cd9] Fatal server error: Caught signal 11. Server aborting -- starting xawtv crashes Xorg server https://launchpad.net/bugs/78982 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs