I also ran xprop in gdb to see what may be causing the Xmir window to clsoe and just the simple exit(0) at the end of xprop.c causes it to close.
Based on the call to XCloseDisplay() and xprop exiting causing Xmir to close, I'm wondering if Xmir is being too aggressive on cleaning up when the application is done with DISPLAY???? Need some expert advice here:) ** Summary changed: - Reading/setting xprop on Xmir causes it to crash + Reading/setting xprop on Xmir window causes it to close -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1481330 Title: Reading/setting xprop on Xmir window causes it to close To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1481330/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs