Emacs opens ibuffer or compilation in same window rather than other window -

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i have been using emacs many years. past year or so, there has been annoying problem, ibuffer or compilation buffer runs in same window in. have 2 buffers open, 1 above other. want ibuffer open in 1 not in. seems pick randomly. bug or feature? can stop it? have searched answer several times, have not found one. running gnu emacs 24.5.1 in terminal. thanks.

the following answer relates usage of ibuffer:

the original poster may wish use keyboard shortcut bound letter o, ibuffer-visit-buffer-other-window. doc-string states function designed to: visit buffer on line in window. function ibuffer-visit-buffer-other-window uses pop-to-buffer , switch-to-buffer-other-window, should avoid window dedicated: http://www.gnu.org/software/emacs/manual/html_node/elisp/dedicated-windows.html

the return key bound ibuffer-visit-buffer (which uses switch-to-buffer), , doc-string states function designed to: visit buffer on line. if optional argument single non-nil, ensure there 1 window. optional argument can used interactively typing c-u ret.


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