I've been a happy user of dispcalgui for years. I just rebooted my machine (Debian testing, uptime > 140 days) and went to recalibrate, only to find that displaycal had disappeared.
Looking at this thread upstream ( https://hub.displaycal.net/issue/17813/ ) it appears that the ETA for a port to Python3 is somewhere between 1/1/2020 and "when it's done". As far as I am aware, displaycal is the premier display calibration gui for linux. It works and works well. How can we help upstream bring it into alignment with Debian requirements? Is a beta python3 port available for community contributions/testing/debugging? Will donations help free up upstream-maintainer's time to finish the port? In the interim -- are there any workarounds for both generating new monitor profiles and installing them? Is calibration straightforward for a Spyder 5 via ArgyllCMS and the command line? A quick survey suggests I have a bunch of unexpected learning to do. Thanks! Charlie