I'm not familiar with the -fd option myself, but confirm it can be made to crash:
Xmir :1 -fd 9999 ** Changed in: xorg-server (Ubuntu) Status: New => Confirmed ** Changed in: xorg-server (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1675481 Title: Xmir crashes when using the '-fd' option Status in xorg-server package in Ubuntu: Confirmed Bug description: I'm trying to use the '-fd' option in Xmir and get a crash when Xmir starts up. This is what I'm doing: I'm using socket()/bind()/listen()/accept() on a AF_UNIX socket at /tmp/.X11-unix/X0 (or whatever available display number). DISPLAY is then set based on this. Then, when an X app accesses that socket, the code then starts Xmir and passes the fd returned in the accept() call to Xmir in the '-fd' option. This is what I get in journalctl when this crash occurs: http://pastebin.ubuntu.com/24235520/ I installed the Xmir debug symbols and also passed in '-core' when starting Xmir and here is the bt: http://pastebin.ubuntu.com/24236088/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1675481/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp