Screen in Ubuntu Karmic
In Karmic Koala, Ubuntu 9.10, the packages are still there but they’ve changed names! So if you want to use screen with Ubuntu Karmic or later, install packages byobu and byobu-extras, and uninstall screen-profiles and screen-profiles-extras (they were broken on my system after upgrade anyway) and you should find everything works as expected. To run screen with the new features, you should run “byobu” instead – although screen commands seem to work to detach and reattach the screens that result, weirdly.
I’m mostly posting about it because I have been very frustrated and there’s no way I could have guessed, or probably ever will remember, what these packages are called. Apparently a byobu is a japanese room screen … you learn something new every day!