GNU bug report logs - #61667
29.0.60; Failure to redisplay

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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: Po Lu <luangruo <at> yahoo.com>
Cc: 61667 <at> debbugs.gnu.org, Gregory Heytings <gregory <at> heytings.org>, Eli Zaretskii <eliz <at> gnu.org>
Subject: bug#61667: 29.0.60; Failure to redisplay
Date: Sun, 12 Mar 2023 23:53:45 +0200

On 12/03/2023 14:19, Po Lu via Bug reports for GNU Emacs, the Swiss army 
knife of text editors wrote:
> Dmitry Gutov<dgutov <at> yandex.ru>  writes:
> 
>> Thanks. When trying to run a separate Xorg, at first it failed with no
>> access to some tty, and then (with sudo) brought down my existing
>> Xorg. 😂
>>
>> But when I rebooted, Xfce suddenly started working without extra help.
>>
>> I've tried several dozens of times and couldn't reproduce the problem
>> in it. All I can add about that is two things:
>>
>> 1. It has some broken handling of scaling. When set to 1, most things
>> (but not all, e.g. not the titlebar buttons, I think) have the same
>> size as I have in GNOME at 2x scaling. And when I set scaling to 2,
>> everything becomes tiny.
>>
>> 2. Emacs starts up faster than under WindowMaker or E, but still a
>> little slower than under GNOME. The startup looks a little different,
>> too: if you have some of my older videos saved, you can see it
>> blinking with the scrollbar. Under Xfce, OTOH, I can't see that
>> blinking, and overall the startup looks something like additionally
>> buffered: less jittery, but a tiny bit slower as a result.
> Different window managers behave differently upon first managing a
> window, so I'm not too surprised by these differences.
> 
> I'm out of ideas here, but everything so far points at this being a
> GNOME bug.  Which I can't reproduce, likely due to the difference in
> display and graphics hardware between my system and yours.
> 
>> Whatever the reasons is, it could affect later frame flipping as well.
> I doubt this, since by the time the initial window configuration
> finishes, Emacs should be in the same state under any window manager.
> 
> I'm sorry I couldn't help.

All right, thanks for trying.

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