Bug#624548: More info for #624548
I have the same problem for a quite while now. The first time
was running urxvt as mentioned by others.
I also found that clicking on a qt dropdown list (so that
it pops up the list of items for you to choose) will cause a crash too.
Tested with qtconfig-qt4 and skype. The backtrace from Xorg is pretty
much the same as running urxvt:
0: Xorg (xorg_backtrace+0x26) [0x4a3836]
1: Xorg (0x400000+0x65049) [0x465049]
2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fabbf523000+0xf020)
3: Xorg (doListFontsWithInfo+0x10b) [0x43372b]
4: Xorg (ProcessWorkQueue+0x21) [0x436eb1]
5: Xorg (WaitForSomething+0x65) [0x45e745]
6: Xorg (0x400000+0x32a92) [0x432a92]
7: Xorg (0x400000+0x26fae) [0x426fae]
8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd)
9: Xorg (0x400000+0x2729d) [0x42729d]
I'm using nvidia with the proprietary driver btw.