Unable to calibrate

[Jonathan Briggs <hira_ichimonji yahoo co uk>]

Hi

I'm using Fedora 22 and a Pantone Huey. I'm trying to use 
gnome-color-manager's calibration tool, but it crashes after going 
through the initial set-up questions, but before any patches appear on 
screen. The following appears in /var/log/messages:

Aug  3 19:15:33 nebula gnome-control-center.desktop: 
(gnome-control-center:12090): color-cc-panel-CRITICAL **: 
cc_color_calibrate_setup: assertion 'calibrate->priv->device_kind != 
CD_SENSOR_CAP_UNKNOWN' failed
Aug  3 19:15:33 nebula kernel: gnome-control-c[12090]: segfault at 8 ip 
0000000000460987 sp 00007ffcfc62bbb0 error 4 in 
gnome-control-center[400000+380000]
Aug  3 19:15:33 nebula kernel: audit: type=1701 
audit(1438625733.817:7715): auid=500 uid=500 gid=7 ses=1 pid=12090 
comm="gnome-control-c" exe="/usr/bin/gnome-control-center" sig=11

The Huey works fine with dispcalgui, so I don't think it's the hardware.

Thanks for any help.

Jon