GNU bug report logs - #42406
Mouse-wheel scrolling can be flickering

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Package: emacs; Reported by: Konrad Podczeck <konrad.podczeck@HIDDEN>; dated Fri, 17 Jul 2020 15:37:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

Message received at 42406 <at> debbugs.gnu.org:


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Subject: Re: bug#42406: Mouse-wheel scrolling can be flickering
From: Konrad Podczeck <konrad.podczeck@HIDDEN>
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 <20200719133323.GA5793@HIDDEN>
To: Alan Third <alan@HIDDEN>
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For me, there is no difference with Emacs 28. To see this best, make the =
following customizations:

(setq mouse-wheel-progressive-speed nil)
(setq mouse-wheel-scroll-amount '(1 ((shift) . 1)))

(and make sure that in the Mouse Options part of the Accessibilty panel =
of the general System Preferences of MacOS, scrolling with inertia is =
enabled.)


> Am 19.07.2020 um 15:33 schrieb Alan Third <alan@HIDDEN>:
>=20
> On Fri, Jul 17, 2020 at 05:36:10PM +0200, Konrad Podczeck wrote:
>> Mouse-wheel scroll and then suddenly release the mouse-wheel, so
>> that thereafter the text scrolled still moves for a short time.
>> During that time, the text flickers.
>>=20
>> (In case this is platform-dependent, I use the NS-port of Emacs
>> 27.0.91/pretest)
>=20
> Emacs 28 will use a different method of drawing to the screen that
> should, hopefully, not flicker. Can you please try out a build from
> master and see if it's any better?
> --=20
> Alan Third





Information forwarded to bug-gnu-emacs@HIDDEN:
bug#42406; Package emacs. Full text available.

Message received at 42406 <at> debbugs.gnu.org:


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From: Alan Third <alan@HIDDEN>
To: Konrad Podczeck <konrad.podczeck@HIDDEN>
Subject: Re: bug#42406: Mouse-wheel scrolling can be flickering
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On Fri, Jul 17, 2020 at 05:36:10PM +0200, Konrad Podczeck wrote:
> Mouse-wheel scroll and then suddenly release the mouse-wheel, so
> that thereafter the text scrolled still moves for a short time.
> During that time, the text flickers.
> 
> (In case this is platform-dependent, I use the NS-port of Emacs
> 27.0.91/pretest)

Emacs 28 will use a different method of drawing to the screen that
should, hopefully, not flicker. Can you please try out a build from
master and see if it's any better?
-- 
Alan Third




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#42406; Package emacs. Full text available.

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Subject: Mouse-wheel scrolling can be flickering
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Mouse-wheel scroll and then suddenly release the mouse-wheel, so that =
thereafter the text scrolled still moves for a short time. During that =
time, the text flickers.

(In case this is platform-dependent, I use the NS-port of Emacs =
27.0.91/pretest)





Acknowledgement sent to Konrad Podczeck <konrad.podczeck@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#42406; Package emacs. Full text available.
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Last modified: Sun, 19 Jul 2020 20:45:02 UTC

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