Re: Flicker on MS Windows

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Mon, 07 Mar 2022 16:21:59 +0200
>> From: Eli Zaretskii <eliz@gnu.org>
>> Cc: emacs-devel@gnu.org
>> 
>> > BTW, here's another way to reproduce some severe flicker on MS Windows:
>> > just type "M-: (run-hooks 'xref-after-jump-hook) RET", and the tool bar
>> > buttons, cursor and text start to flicker severely.  The tool bar
>> > buttons flicker in a peculiar way: the background is displayed, but the
>> > image itself flickers with interleaved bands of black.
>> 
>> I don't see any flickering here, after the above.  The window
>> recenters and I see a single line pulsed; that's all.  Moreover, Emacs
>> consumes exactly zero CPU cycles after evaluating that expression.
>
> FTR: on Windows 10 I'm testing this in Emacs 27.2.

I tested on Emacs 28, but I see the same on 27.2, so that's odd.