On 5 April 2011 02:48, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote: > DTP94 only does CRT. Using the Argyll drivers this is discoverable > using the capabilities flags, although (of course) you can't > do this until you open and connect to the instrument. That's great, thanks. In gnome-color-manager I'm adding udev policy rules for each device type so that the UI elements get set insensitive if the connected hardware can't profile a device type. Richard.