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Re: overly-eager mouse scrolling on mac

From: Jan D.
Subject: Re: overly-eager mouse scrolling on mac
Date: Thu, 23 Jan 2014 14:00:09 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:17.0) Gecko/20130328 Thunderbird/17.0.5


Sam Steingold skrev 2014-01-22 21:07:
In GNU Emacs (x86_64-apple-darwin13.0.0, NS apple-appkit-1265.00)
  of 2014-01-21 on sds-MacBook-Pro.local
Windowing system distributor `Apple', version 10.3.1265
Configured using: `configure --with-ns'

Whenever I touch the mouse, emacs scrolls like crazy, starts blinking
(visible-bell is on), and *Message* contains these:

byte-code: End of buffer [5 times]
byte-code: End of buffer [5 times]
byte-code: Beginning of buffer [7 times]

lossage is:

<double-wheel-down> <wheel-right> <wheel-down> <wheel-down>
<double-wheel-down> <triple-wheel-down> <triple-wheel-down>
<triple-wheel-down> <triple-wheel-down> <wheel-up>
<double-wheel-up> <wheel-down> <double-wheel-down>
<wheel-up> <double-wheel-up> <triple-wheel-up> <triple-wheel-up>
<wheel-up> <select-window> <wheel-up> <double-wheel-up>
<triple-wheel-up> <triple-wheel-up> <triple-wheel-up>
<triple-wheel-up> <triple-wheel-up> <wheel-down> <double-wheel-down>
<triple-wheel-down> <triple-wheel-down> <triple-wheel-down>
<triple-wheel-down> <triple-wheel-down> C-h l

is this a known bug?

I suspect that there is a timing parameter in the mouse handling code
which is too small...

PS. All the other applications (firefox &c) behave normally.

The blinking thing has been discussed in bug 16196.  There is a mwheel
workaround in there.

As for "crazy", that is not a clear technical term so I don't know what
that means.  If you mean that is scrolls very fast, I guess you have to
either fix mwheel or adjust mouse acceleration in OSX settings.

Here (with Magic mouse and trackpad) the speed is reasonable.  Faster
than GNU/Linux/Gtk+ on the same hardware, but still OK.

        Jan D.

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