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Somehow, I caused my GNU emacs v23.1.1 list-buffers to be sorted alphabetically through some key sequence or mouse click I typed by error. How can I restore the normal order of buffers listed in order of last access?

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You can toggle sort up or down by clicking any column heading.

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True! Do you know of any key combination to achieve the same? – choroba Jul 25 '12 at 11:13
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I couldn't find any key bindings for sorting, in buff-menu.el, for which: "the single entry point is 'list-buffers'" .. The sort functions are Buffer-menu-sort (column), Buffer-menu-sort-by-column (&optional e), Buffer-menu-make-sort-button (name column) , but they all seem to be focused on mouse actions. – Peter.O Jul 25 '12 at 11:24
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Are you talking about the standard list-buffers? It does not support sorting, as far as I know. On the other hand, ibuffer can sort the buffers, you can use , (comma) to cycle over various sort options.

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Yes, list-buffers and somehow I caused it to be sorted alphabetically. – WilliamKF Jul 25 '12 at 2:56
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Next time you do so, press C-h l to see the last keys pressed. – choroba Jul 25 '12 at 9:07
I can confirm Peter O's answer: clicking on the column headings sorts by that column. This came in with Emacs 22. – Peter Westlake Jul 25 '12 at 10:37
ibuffer is nice, It seems to offer all that list-buffer does, and more. +1 – Peter.O Jul 25 '12 at 11:38

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