Mar 27 12:51:51 localhost.localdomain systemd-coredump[1570]: Process 1447 (Xorg.bin) of user 0 dumped core.
Stack trace of thread 1447:
#0 0x00007fbf7e6949ec __pthread_kill_implementation (libc.so.6 + 0x949ec)
#1 0x00007fbf7e641176 raise (libc.so.6 + 0x41176)
#2 0x00007fbf7e628917 abort (libc.so.6 + 0x28917)
#3 0x0000562e3c284dcc OsAbort (Xorg.bin + 0x1dbdcc)
#4 0x0000562e3c285e2f FatalError (Xorg.bin + 0x1dce2f)
#5 0x0000562e3c288512 n/a (Xorg.bin + 0x1df512)
#6 0x00007fbf7e641240 __restore_rt (libc.so.6 + 0x41240)
#7 0x00007fbf7c12b98d n/a (radeonsi_dri.so + 0x72b98d)
I am pretty sure somebody reported similar crash with AMD recently.