Rolf, I've tested version 0.84.3ubuntu1 in Xubuntu 18.04 and Ubuntu 18.10 and am seeing screenshots where they are available including fslint which you referred to in the bug description. I can't see anything in the changelog to imply that the issue was fixed though.
Can this be closed now or are you still not seeing screenshots? Paul White [Ubuntu Bug Squad] ** Changed in: synaptic (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/908774 Title: synaptic does not fetch screenshots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/908774/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs