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I'm using GNOME and xmonad. When I first open Emacs, it doesn't use the full width and height of its window. If I then change the size of the window, emacs corrects itself to fill the window, and works perfectly thereafter. How can I fix this?

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From man emacs:

starting emacs with emacs -fs opens emacs in full screen mode

to automate this, add the following to your .bashrc file (found in /home/user/.bashrc):

alias emacs='emacs -fs'
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I don't think it's fixable; this is a longstanding Emacs bug/annoyance.

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Has anyone reported it? – Tom Wijsman Mar 6 '12 at 22:09
Do you have a link to the bug? – Tom Wijsman Aug 9 '12 at 12:37

Works for me if placed in the last line of my .emacs:

(if (window-system) (set-frame-size (selected-frame) 1280 1000))

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