Hang in kdm_greet (Trinity) - full backtrace

#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
No locals.
#1  0x00007f08196c3179 in _L_lock_953 () from /lib/libpthread.so.0
No symbol table info available.
#2  0x00007f08196c2f9b in __pthread_mutex_lock (mutex=0x721f80) at pthread_mutex_lock.c:61
        ignore1 = <value optimized out>
        ignore2 = 7479168
        ignore3 = -512
        __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
        type = <value optimized out>
#3  0x00007f081cc66bf3 in _XLockDisplay (dpy=0x723c80) at ../../src/locking.c:458
No locals.
#4  0x00007f081cc5b25a in XFreeCursor (dpy=0x721f80, cursor=6291498)
    at ../../src/FreeCurs.c:38
No locals.
#5  0x00007f081d437435 in ~QCursorData (this=0x731a90, __in_chrg=<value optimized out>)
    at kernel/qcursor_x11.cpp:90
        dpy = 0x723c80
#6  0x00007f081d4375ac in ~QCursor (this=<value optimized out>,
    __in_chrg=<value optimized out>) at kernel/qcursor_x11.cpp:282
No locals.
#7  0x00007f081d4375e4 in __tcf_0 () at kernel/qcursor_x11.cpp:104
No locals.
#8  0x00007f081ac05995 in __cxa_finalize (d=0x7f081dbfbbe0) at cxa_finalize.c:56
        check = <value optimized out>
        cxafn = 0xffffffffffffffa0
        cxaarg = 0x721f80
        f = 0x708520
        funcs = 0x708510
#9  0x00007f081d41cf56 in __do_global_dtors_aux () from /usr/lib/libqt-mt.so.3
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#10 0x0000000000000000 in ?? ()
No symbol table info available.