Sorry, used a backtrace without debug symbols:
Thread 1 "doomsday" received signal SIGSEGV, Segmentation fault.
0x00007ffff539a1c3 in require_socket (dpy=0x555555fe2ea0) at
../../src/xcb_io.c:70
warning: 70 ../../src/xcb_io.c: Datei oder Verzeichnis nicht gefunden
(gdb) bt
#0 0x00007ffff539a1c3 in require_socket (dpy=0x555555fe2ea0) at
../../src/xcb_io.c:70
#1 _XFlush (dpy=0x555555fe2ea0) at ../../src/xcb_io.c:606
#2 0x00007ffff539cec5 in _XGetRequest (dpy=dpy@entry=0x555555fe2ea0,
type=type@entry=98 'b', len=len@entry=8) at ../../src/XlibInt.c:1778
#3 0x00007ffff538f905 in XQueryExtension (dpy=dpy@entry=0x555555fe2ea0,
name=name@entry=0x7ffff68d1108 <XRRExtensionName> "RANDR",
major_opcode=major_opcode@entry=0x7fffffffd694, first_event=first_event@entry=0x7fffffffd698,
first_error=first_error@entry=0x7fffffffd69c) at ../../src/QuExt.c:49
#4 0x00007ffff53823f4 in XInitExtension (dpy=dpy@entry=0x555555fe2ea0,
name=name@entry=0x7ffff68d1108 <XRRExtensionName> "RANDR") at
../../src/InitExt.c:59
#5 0x00007ffff69090ef in XextAddDisplay (extinfo=extinfo@entry=0x7ffff68d1190 <XRRExtensionInfo>,
dpy=dpy@entry=0x555555fe2ea0, ext_name=ext_name@entry=0x7ffff68d1108 <XRRExtensionName>
"RANDR", hooks=hooks@entry=0x7ffff68d1120 <rr_extension_hooks>, nevents=nevents@entry=2,
data=data@entry=0x0) at ../../src/extutil.c:110
#6 0x00007ffff68c786f in XRRFindDisplay (dpy=dpy@entry=0x555555fe2ea0) at
../../src/Xrandr.c:295
#7 0x00007ffff68c7f88 in XRRFindDisplay (dpy=0x555555fe2ea0) at
../../src/Xrandr.c:357
#8 XRRQueryExtension (dpy=0x555555fe2ea0, event_base_return=0x7fffffffd7b8,
error_base_return=0x7fffffffd7b8) at ../../src/Xrandr.c:348
#9 0x00007ffff7d615c7 in de::internal::RRInfo::RRInfo (this=0x7fffffffd850) at
./doomsday/sdk/libgui/src/displaymode_x11.cpp:63
#10 0x00007ffff7d60bfb in DisplayMode_Native_Init () at
./doomsday/sdk/libgui/src/displaymode_x11.cpp:188
#11 0x00007ffff7cefdd9 in DisplayMode_Init () at
./doomsday/sdk/libgui/src/displaymode.cpp:195
#12 0x00005555557539e9 in ClientApp::initialize (this=0x7fffffffda20) at
./doomsday/apps/client/src/clientapp.cpp:628
#13 0x00005555557352af in main (argc=<optimized out>, argv=0x7fffffffdc48) at
./doomsday/apps/client/src/main_client.cpp:109
(gdb)
