Comment 18 for bug 1338492

Open bug in launchpad.net :
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1338492

Backtrace:
#0 0x00007ffb7c6cf117 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 3738
        selftid = 3738
#1 0x00007ffb7c6d0808 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7ffb7f0075c0 <displayfd>, sa_sigaction = 0x7ffb7f0075c0 <displayfd>}, sa_mask = {__val = {140718144253320, 140734525811800, 140718137570727, 1, 0, 0, 140718100835624, 140718141577302, 140734525811800, 140718140050869, 140718137599365, 0, 18446744073709551615, 140718144224960, 140734525811600, 0}}, sa_flags = 2126203328, sa_restorer = 0x7ffb7ebb49c0}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007ffb7ed6ee0e in OsAbort () at ../../os/utils.c:1351
No locals.
#3 0x00007ffb7ed74423 in AbortServer () at ../../os/log.c:773
No locals.
#4 0x00007ffb7ed750f8 in FatalError (f=f@entry=0x7ffb7ed79856 "no screens found") at ../../os/log.c:911
        args = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7fff4f6b2d40, reg_save_area = 0x7fff4f6b2c70}}
        args2 = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7fff4f6b2d40, reg_save_area = 0x7fff4f6b2c70}}
        beenhere = 1
#5 0x00007ffb7ec19bb2 in dix_main (argc=11, argv=0x7fff4f6b2e88, envp=<optimized out>) at ../../dix/main.c:203
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#6 0x00007ffb7c6b9ec5 in __libc_start_main (main=0x7ffb7ec04db0 <main>, argc=11, argv=0x7fff4f6b2e88, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4f6b2e78) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 4741840274197947594, 140718140050869, 140734525812352, 0, 0, -4742017395905420086, -4739864558119705398}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffb7ed78a50 <__libc_csu_init>, 0x7fff4f6b2e88}, data = {prev = 0x0, cleanup = 0x0, canceltype = 2128054864}}}
        not_first_call = <optimized out>
#7 0x00007ffb7ec04dde in _start ()
No symbol table info available.