:15:40 vulpine systemd-coredump[3587]: Process 3584 (X) of user 0 dumped core.

                                       Stack trace of thread 3584:
                                       #0  0x00007f908677df46 has_offload_slaves (intel_drv.so)
                                       #1  0x00007f908677e104 stop_flush (intel_drv.so)
                                       #2  0x00007f908677e8aa sna_scanout_flush (intel_drv.so)
                                       #3  0x00007f908677f745 sna_accel_leave (intel_drv.so)
                                       #4  0x00007f90867aac73 sna_leave_vt (intel_drv.so)
                                       #5  0x000000000049baf0 n/a (/usr/bin/Xorg)