but in my php.ini there are only timeouts set in
seconds and noting
above 90 seconds. Also in the apache-confs there is nothing to find
about this.
I've gone overnight with editing and haven't been logged out, so it's
definitely possible. In my php.ini there's an option called
"session.cookie_lifetime" which apparently means "until the browser is
restarted." Maybe that's it? (Assuming cookies are working for your
sessions and it's not falling back to another method that times out
sooner.)
Either way if you've been away for a while just open another link (like
the main page) in a new window/tab - log in there if required, and then
go back and save your changes in the original window/tab.
Cheers,
Adam.