It wasn't supported in tmux 1.4, try tmux 1.5? If that doesn't work, send me the output of "clear|cat -v" on your box.
On Sat, Sep 24, 2011 at 06:25:40PM -0700, Robin Lee Powell wrote: > Note, by the way, that on other machines "clear" *used* to do the > right thing for me; we had a long thread about it a while back; > http://www.mail-archive.com/tmux-users@lists.sourceforge.net/msg01608.html > > This is a completely new system, and I don't know what changed. > It's Fedora 15, running tmux 1.4. > > Suggestions welcome for how to test/debug this, as usual. > > -Robin > > On Sat, Sep 24, 2011 at 06:15:29PM -0700, Robin Lee Powell wrote: > > On my current Fedora machine, no, it doesn't. > > > > If I run "clear", with alternate-screen off, it simply destroys > > what's on the screen; it doesn't go into tmux's backscroll/history > > or anything, it's just *gone*. > > > > I want this fixed so very, very badly. ;_; > > > > It annoys me so much that I may have to switch back to GNU screen, > > where I never had this problem, despite it being a worse program in > > basically every other respect. > > > > -Robin > > > > On Mon, Aug 22, 2011 at 10:28:09PM +0100, Nicholas Marriott wrote: > > > Don't we do this already? Clear screen scrolls lines into the history? > > > Or do you want something else? It isn't very obvious. > > > > > > > > > > > > On Mon, Aug 22, 2011 at 10:22:16PM +0200, Fabian Groffen wrote: > > > > Hi list, > > > > > > > > In my quest to get rid of the alternative buffer feature of todays > > > > terminals, I've configured tmux with: > > > > > > > > set -g terminal-overrides 'xterm*:smcup@:rmcup@' > > > > set -g alternate-screen off > > > > > > > > This basically does everything I want, except that compared to a > > > > non-tmux session (with terminfo settings to remove smcup and rmcup > > > > capabilities) a "clear" overwrites the existing contents of the > > > > terminal. E.g. when I run Vim in tmux, I lose the information on my > > > > screen, whereas outside it isn't. The \E[2J sequence triggers a full > > > > clear screen, and the attached patch changes the behaviour for that > > > > sequence in the tty_cmd_clearscreen function not to overwrite, but > > > > rather add empty lines to make the terminal clean. This is only done > > > > when alternate-screen is set to off, when this behaviour makes sense. > > > > > > > > Please consider the attached patch. > > > > > > > > > > > > -- > > > > Fabian Groffen > > > > Gentoo on a different level > > > > > > > # HG changeset patch > > > > # User Fabian Groffen <grob...@gentoo.org> > > > > # Date 1314042382 -7200 > > > > # Node ID 1b455a85ed6ca5e6aeea23a7152bffcc902966b3 > > > > # Parent 051fdc014dc5bc730e4b0eb380af8b09938dd9b8 > > > > tty_cmd_clearscreen: don't overwrite the buffer if alternate-screen=off > > > > > > > > If the alternative-screen isn't used, overwriting the buffer contents > > > > loses the information that the user probably wanted to retain (hence no > > > > alternate-screen). Instead, write enough newlines to clear the screen > > > > and reset the cursor, such that we retain all information that was on > > > > the screen before the clear. > > > > > > > > For example: having ls output and starting Vim won't overwrite the ls > > > > output, but show the output including the vim invocation. > > > > > > > > diff -r 051fdc014dc5 -r 1b455a85ed6c tty.c > > > > --- a/tty.c Mon Aug 22 20:14:55 2011 +0200 > > > > +++ b/tty.c Mon Aug 22 21:46:22 2011 +0200 > > > > @@ -899,24 +899,32 @@ > > > > > > > > tty_reset(tty); > > > > > > > > - tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1); > > > > - tty_cursor_pane(tty, ctx, 0, 0); > > > > + if (options_get_number(&wp->window->options, > > > > "alternate-screen")) { > > > > + tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1); > > > > + tty_cursor_pane(tty, ctx, 0, 0); > > > > > > > > - if (wp->xoff == 0 && screen_size_x(s) >= tty->sx && > > > > - tty_term_has(tty->term, TTYC_EL)) { > > > > - for (i = 0; i < screen_size_y(s); i++) { > > > > - tty_putcode(tty, TTYC_EL); > > > > - if (i != screen_size_y(s) - 1) { > > > > - tty_emulate_repeat(tty, TTYC_CUD, > > > > TTYC_CUD1, 1); > > > > - tty->cy++; > > > > + if (wp->xoff == 0 && screen_size_x(s) >= tty->sx && > > > > + tty_term_has(tty->term, TTYC_EL)) { > > > > + for (i = 0; i < screen_size_y(s); i++) { > > > > + tty_putcode(tty, TTYC_EL); > > > > + if (i != screen_size_y(s) - 1) { > > > > + tty_emulate_repeat(tty, > > > > TTYC_CUD, TTYC_CUD1, 1); > > > > + tty->cy++; > > > > + } > > > > + } > > > > + } else { > > > > + for (j = 0; j < screen_size_y(s); j++) { > > > > + tty_cursor_pane(tty, ctx, 0, j); > > > > + for (i = 0; i < screen_size_x(s); i++) > > > > + tty_putc(tty, ' '); > > > > } > > > > } > > > > } else { > > > > - for (j = 0; j < screen_size_y(s); j++) { > > > > - tty_cursor_pane(tty, ctx, 0, j); > > > > - for (i = 0; i < screen_size_x(s); i++) > > > > - tty_putc(tty, ' '); > > > > - } > > > > + /* make sure we don't overwrite buffer contents, move > > > > down */ > > > > + for (j = 0; j < screen_size_y(s); j++) > > > > + tty_putc(tty, '\n'); > > > > + tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1); > > > > + tty_cursor_pane(tty, ctx, 0, 0); > > > > } > > > > } > > > > > > > > > > > ------------------------------------------------------------------------------ > > > > uberSVN's rich system and user administration capabilities and model > > > > configuration take the hassle out of deploying and managing Subversion > > > > and > > > > the tools developers use with it. Learn more about uberSVN and get a > > > > free > > > > download at: http://p.sf.net/sfu/wandisco-dev2dev > > > > > > > _______________________________________________ > > > > tmux-users mailing list > > > > tmux-users@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/tmux-users > > > > > > > > > ------------------------------------------------------------------------------ > > > uberSVN's rich system and user administration capabilities and model > > > configuration take the hassle out of deploying and managing Subversion > > > and > > > the tools developers use with it. Learn more about uberSVN and get a free > > > download at: http://p.sf.net/sfu/wandisco-dev2dev > > > _______________________________________________ > > > tmux-users mailing list > > > tmux-users@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/tmux-users ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 _______________________________________________ tmux-users mailing list tmux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tmux-users
