How to get Mac OS X Terminal.app and screen/vim scrolling to play nice?

Question

OSX 10.6.3 Terminal.app

Am a pretty dedicated screen user. Terminal.app line buffer and/or scroll does not seem to work for me. That is while in screen anything that goes past the top of the frame is gone, can't scroll back to. This seems to work ok in other terminal apps gnome, cygwin. Perhaps this is a shell env, config, or command?

.screenrc:

startup_message off  
autodetach on  
shell -$SHELL  
vbell off  
defutf8 on  
caption always  
caption string "%{= wk}%w"  

I have tried using defscrollback here with different values, but doesn't have an effect.

some .bashrc settings:

set -o physical  
export TERM=xterm-color  
shopt -s checkwinsize  

Answer 1

In screenrc:

# Make xterm scrolling work properly with screen.
termcapinfo xterm-color|xterm|xterms|xs|rxvt ti@:te@

Works for Terminal.app too.

Answer 2

In Lion, the default terminal type is different, so you should use this line in your .screenrc instead:

termcapinfo xterm-256color|xterm-color|xterm|xterms|xs|rxvt ti@:te@

Answer 3

I think it should works as well, even more universal:

termcapinfo xterm* ti@:te@

Answer 4

I don't know if it's possible to get Terminal's scroll buffer to collect and work with gnu screen's scrollback.

I recommend that you read more about the scrollback within screen itself. You'll need to learn a few new key combinations -- since you're already using screen, I doubt that will scare you off.

With a little help from Google, I found a blog post called Working with the Scrollback Buffer.

I didn't really expect that the scrollback would ever integrate with Terminal.app's buffer. If you switch from one virtual screen to another, what happens to Terminal's buffer? If you disconnect from one machine and reconnect three hours later, your Terminal buffer is long out of sync.

screen is my little window into another server. I like that screen's scrollback buffer persists with the session so that I have access to it from where ever I connect. I like that each screen within my session has its own scrollback buffer.

I think you found this working in gnome and cygwin because screen uses xterm's 'alternate screen' functionality. There's more discussion of this in the first question on this screen faq page.

Answer 5

If you go to the Terminal menu and select Preferences... then click on the window tab at the bottom there are options for Scrollback, is the radio button for Unlimited selected ?

Answer 6

Short answer:

Type crtl-a + [ and use your scroll/arrow keys or pgup/pgdwn. To exit the "scroll-mode" (not the actual name), press Esc

Long answer: This this article about screen's scrollback buffer.

Answer 7

I use iTerm 2. There is an option under profiles>terminal which states: "Save lines to scrollback when an app status bar is present". That and putting:

defutf8 on
termcapinfo xterm-color|xterm|xterms|xs|rxvt ti@:te@

in screenrc did the trick for me. Scrolling!