Re: overly-eager mouse scrolling on mac

[Jan D.]

Hello.

Sam Steingold skrev 2014-01-22 21:07:
> In GNU Emacs 24.3.50.1 (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?
> feature?
>
> 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.