[argyllcms] ColorMunki Photo: new_disprd() failed with 'Instrument Access Failed'

  • From: Pascal de Bruijn <pmjdebruijn@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 9 Jul 2014 18:32:35 +0200


I recently noticed that the ColorMunki Photo no longer seems to work
reliably on Ubuntu 14.04 when doing local argyll 1.6.3 source builds. With
the prebuilt Argyll binaries it seems to work just fine.

The odd thing is that the ColorMunki Photo sometimes does work after it's
initially connected, but once it starts failing it generally seems to
continue to fail. And it doesn't take many attempts to get it to fail, most
typically it works for dispcal, and then fails for dispread...

This is the debug log I get when it's failing:


I'm wondering whether this has anything to do with which version of libusb
argyll has been built against (which is 1.0.17 on ubuntu 14.04).

BTW, I've used a Huey, ColorMunki Smile and i1 Display Pro repeatedly just
fine with my own source build of argyll, this issue seems limited to the
ColorMunki Photo as far as I can tell at this point.

Pascal de Bruijn

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