We have had these problems with coot and xquartz versions greater than 2.7.8. This affects coot running locally on OSX and via ssh -XY from the mac to our linux workstations. You should still be able to download the xquartz-2.7.8 package (https://www.xquartz.org/releases/XQuartz-2.7.8.html). Rebooting after the installation of a later xquartz has not made any difference on our macs.

On 22 Nov 2016, at 12:32, Phil Evans <[log in to unmask]> wrote:

Something we [re]discovered at a recent workshop is that after installing Quartz you need to reboot (I believe to start the X11 launch daemon). Could this be the problem?

Phil

On 22 Nov 2016, at 11:28, Laura Croenen <[log in to unmask]> wrote:

Hello all,

I recently downloaded the CCP4 package on Mac (OS X Yosemite 10.10.2). With this I am using the latest update of XQuartz. Some aspects of the package (ccp4i2, QtMG) are working fine, but others, inc. Coot, are not working at all. When I try to open Coot, it appears to start opening (the icon appears at the bottom of my screen) and then disappears, with the message:

"student-10-245-174-102:MacOS lauracroenen$ ./coot
2016-11-21 17:07:40.946 coot[39004:3369025] script to run /Applications/ccp4-7.0/coot.app/../bin/coot

(coot-bin:39010): Gtk-WARNING **: cannot open display:

(coot-crash-catcher.scm:39011): Gtk-WARNING **: cannot open display:"

Has anyone else had this problem? Am I missing something?

Thank you in advance.

Laura Croenen