window too small for splitting

[incandescentman]

Since upgrading to Emacs 25, I'm no longer able to split windows horizontally, even when I set split-width-threshold to a low value (e.g. 5). When I run split-window-horizontally or split-window-right, I get this:

Debugger entered--Lisp error: (error "Window #<window 7 on warm.org> too small for splitting (2)")
  signal(error ("Window #<window 7 on warm.org> too small for splitting (2)"))
  error("Window %s too small for splitting (2)" #<window 7 on warm.org>)
  split-window(nil nil t)
  split-window-horizontally(nil)
  funcall-interactively(split-window-horizontally nil)
  call-interactively(split-window-horizontally nil nil)
  command-execute(split-window-horizontally)

When I disable olivetti-mode for the current buffer, I am then able to do split-window-horizontally. Any suggestions?

[rnkn]

Sounds nasty. Sorry I'm away from the computer for a few days, so I'll need to take a look on Monday.

[rnkn]

This is a bug in Emacs. Someone seems to have made a very poor design decision in changing the way window-min-size works. I've reported here http://debbugs.gnu.org/24193

[incandescentman]

@rnkn Thank you!

[rnkn]

I'm going to keep pushing for the Emacs maintainers to fix window-min-size but in the interim you can use Martin Rudalics' workaround and put this in your init:

(defun split-window-right-ignore (&optional size)
  (if (car size) size (list (/ (window-total-width) 2))))

(advice-add 'split-window-right :filter-args
            'split-window-right-ignore)

which will feed split-window-right (C-x 3) either the prefix argument or half of the window width.

[rnkn]

Don't bother with the above, I've pushed a new stable release 1.5.1 with this fix and an option olivetti-patch-emacs-bugs which defaults to true.

[incandescentman]

Thanks!!
ᐧ

On Sun, Aug 14, 2016 at 6:23 AM, Paul Rankin notifications@github.com
wrote:

Don't bother with the above, I've pushed a new stable release 1.5.1 with
this fix and an option olivetti-patch-emacs-bugs which defaults to true.

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[rnkn]

Latest version 1.5.3 will behave well with 25.1 without patching existing functions.

[incandescentman]

Amazing thank you!

[rnkn]

Correction, version 1.5.5 (as I messed up the tagging). If you're on regular MELPA it won't make a difference.

[dchrzanowski]

This issue still seems to be around on Emacs 25.1-4. However not on normal splits, but only when I use the Sunrise Commander. Everything is ok on full-screen. Any solutions for this?

[rnkn]

Sorry what it Sunrise Commander?

[dchrzanowski]

Apologies I didn't realise that my post is irrelevant here.

[rnkn]

😎 Everything working okay?

[dchrzanowski]

Yes everything is absolutely fine. I had an issue with a different package, and a Google search led me here. My mistake.