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

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: alan <at> idiocy.org, konrad.podczeck <at> univie.ac.at, 42406 <at> debbugs.gnu.org
Subject: bug#42406: Mouse-wheel scrolling can be flickering
Date: Fri, 18 Dec 2020 09:41:06 -0500

>> That would be nice, yes.  But that's largely independent from the bug
>> under discussion, where the performance seems to be adequate with the
>> current coarse grained flags as long as we have a single frame, so the
>> problem seems to be that we consider all frames instead of only
>> considering those displaying the affected windows.
>
> No, the problem is that we turn on update_mode_lines because we need
> to make sure the title of the _selected_ frame, a single frame, is
> updated due to possible effects of scrolling on that single title.
> And the effect is to consider the titles (and menu bars and tool bars)
> on all frames instead, which is definitely unnecessary.

I fail to see the difference between what you're saying and what I'm saying.


        Stefan

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