Had a panic moment when it appeared my i1pro meter had stopped working. It seems I had not used it since upgrading to 18.04.LTS when I started having problems with this issue. As I plugged the unit in gnome-control- center opens at the device colour profile page. When I open a terminal and try to use chartread I get:
Read Target Test Chart, Version 2.0.0 Author: Graeme W. Gill, licensed under the AGPL Version 3 usage: chartread [-options] outfile -v Verbose mode -c listno Set communication port from the following list (default 1) ** No ports found ** etc or with chartread -D I get: Read Target Test Chart, Version 2.0.0 Author: Graeme W. Gill, licensed under the AGPL Version 3 usage: chartread [-options] outfile -v Verbose mode -c listno Set communication port from the following list (default 1) Argyll 'V2.0.0' Build 'Linux 64 bit' System 'Linux #81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019 4.15.0-72-generic x86_64' usb_check_and_add: failed to open '/dev/bus/usb/004/025' ** No ports found ** As a last resort I uninstalled gnome-control-center with synaptic and the device is available again to chartread -D : Read Target Test Chart, Version 2.0.0 Author: Graeme W. Gill, licensed under the AGPL Version 3 usage: chartread [-options] outfile -v Verbose mode -c listno Set communication port from the following list (default 1) 1 = '/dev/bus/usb/004/008 (GretagMacbeth i1 Pro)' I re-installed and it's back to no-go. It's as though gnome-control-center is grabbing the device and not allowing access even when the window is closed. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1855615 Title: Device colour profiles - on / off button not working Ubuntu 18.04.3LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1855615/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs