The user config should work fine, once set to jpg - for the depth of the problem just follow the debian bug: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=893809 - that will lead you to the relevant upstream things.
To make it short: 1.97 will not be fixed unless someone stand up and spend time on dead code. The upcoming screengrab release will fix the most of the long standing issues, but not all - it is still work in progress. But i'm dead sure that 18.10 will see a major overhauled screengrab. ** Bug watch added: Debian Bug tracker #893809 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=893809 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1733461 Title: QLubuntu - Default File Format blanks and always comes up .png To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/screengrab/+bug/1733461/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs