Floating Emacs frame doesn't want to be centered.

[mkaito]

i3faq post for reference: https://faq.i3wm.org/question/6314/floating-emacs-frames-arent-centered/

i3 centers new floating windows by default. Except for Emacs frames. Those are stuck to the top left. I've triple checked the emacs docs and my dotemacs, and as far as I can tell, this should not be happening.

To be more specific, the default-frame-alist variable contains default parameters for new frames. It does not contain the keys top or left in my config. According to the emacs docs, this should cause the window manager to do whatever it does by default.

To test this yourself, put this in your .i3/config:

for_window [class="^Emacs$" instance="^floating$"] floating enable

And try:

emacs --geometry 50x50+200+200 --name floating

Or maybe:

emacs --daemon
emacsclient -c -F '((name . "floating") (width . 50) (height . 50))' some.file

Edit: Here's a log file of me reproducing the observed behaviour. It's probably much longer than necessary, but a search for "personal-org" will get you to where the interesting bits happen.

http://logs.i3wm.org/logs/5742636757417984.bz2

[i3bot]

I don’t see a version number. Could you please copy & paste the output of i3 --version into this issue?

[mkaito]

# i3 --version
i3 version 4.10.2 (2015-04-16, branch "4.10.2") © 2009-2014 Michael Stapelberg and contributors

[mkaito]

I have not changed my config. I have not updated i3. But it works just fine now. I have absolutely no idea what might be at fault... Interesting. I'll close this issue, since I'm no longer able to reproduce.

[QiangF]

@mkaito I think you should change instance=floating to title=floating