Ubuntu
xorg-server package

  1. Bug #1668429
  2. Comment #6

Comment 6 for bug 1668429

Revision history for this message
Stephen M. Webb (bregma) wrote : Re: X apps fail to launch with failure to open display (no Xmir running or no access to it)

The log shows Firefox is being run natively under Unity 8 (no Xmir). Firefox is known to not be built natively for Mir, so it's not a surprise that it it not start.

Assuming that an Xmir instance should be launched just in case for any and all applications run under Unity 8 was purposefully disabled to prevent unwanted empty black windows from covering the screen.