Per Nordlund wrote: Hi, > *I think problem is solved!* My computer is a Lenovo W520 and it has an > inbuilt Huey colorimeter on COM1! The i1 Pro is on COM2. I put the argument > -c2 and now it asks me to start reading! I may deactivate the Huey but > maybe it's installed again when I restart the computer? OK - that makes more sense. You may be able to disable it by explicitly disabling the HID USB driver for the Huey. > This could explain > why there is problem also in Linux. I still don't understand why it worked > in Dispcal but not direct in in Argyll? Maybe because I have to choose > instrument in the GUI before making the reading? Yes, probably. > Actually I have never > understood where the Huey came from (I thought I didn't have a Huey!) but > of course it's the inbuilt colorimeter that I never use! Yes, people asked for support for it, so it was added. I'm not sure the in-built Huey has ever been made use of with Argyll though, since no-one was able to determine how to keep the display active when the lid is shut. Good to hear that you have sorted the problems out. Graeme Gill.