Mir's default socket is $XDG_RUNTIME_DIR for reasons explained in LP #1236912. Mirscreencast reads the framebuffer contents from U-S-C, and currently U-S-C is hard-coded to override the default socket location with '/run/mir_socket'.
unity-system-compositor --spinner=/usr/bin/unity-system-compositor- spinner --file /run/mir_socket --from-dm-fd 9 --to-dm-fd 13 --vt 1 (Note that since '/var/run' is a symlink to ' /run' , '/run/mir_socket' == '/var/run/mir_socket'). So the right thing to do would be to change it in lightdm (responsible for launching the U-S-C) to not use an argument. Or the easiest thing to do would be to not do anything and have mirscreencast continue providing the socket override. ** Also affects: lightdm Importance: Undecided Status: New ** Changed in: mir (Ubuntu) Status: Confirmed => Invalid ** Changed in: mir Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1327139 Title: mirscreencast broke (moved socket) in #71 To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1327139/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs