[ILUG] screen power detach kills ssh, why?

[g whitley mott]

anyone use screen much?  i've noticed for years that whenever i grab my
screen session to another terminal, the terminal it was grabbed from
gets logged out.  how?  how does screen (the child) tell bash (the
parent) to exit?  and why?

i suppose you could say that's a handy intentional feature?  but hey, if
i wanted that to happen, i would have invoked "exec screen", wouldn't i?

this actually bit me today, because i had various X apps running thru
the ssh session in addition to screen, and i was not amused when the X
apps were all dead.

yes ok, there is a workaround: invoke another _interactive_ bash within
the login bash, then invoke screen.  (bash -c screen not good enough!)