I noticed that for 19.04 there is a build from 2020-02-24 ppa.launchpad.net/mutlaqja/ppa/ubuntu/po...ntu19.04.1_arm64.deb This has SDK libqhyccd.so.20.2.19 in it, which actually works and is more recent that the version 6 I used as per the previous thread, so I just put this lib there manually temporarily. Still the question is on: where did you get a 21.1.19 from?Read More...