GNU bug report logs - #77830
Gnome 46: some applications are not scaled correctly (gimp, vorta, vlc, freecad)

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim <at> guixotic.coop>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#77830: closed (Gnome 46: some applications are not scaled
 correctly (gimp, vorta, vlc, freecad))
Date: Tue, 08 Jul 2025 16:36:04 +0000

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Your message dated Tue, 08 Jul 2025 22:12:32 +0900
with message-id <87jz4isu67.fsf <at> guixotic.coop>
and subject line Re: bug#77830: Gnome 46: some applications are not scaled correctly (gimp, vorta, vlc, freecad)
has caused the debbugs.gnu.org bug report #77830,
regarding Gnome 46: some applications are not scaled correctly (gimp, vorta, vlc, freecad)
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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77830: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=77830
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From: Christophe Pisteur <christophe.pisteur <at> fsfe.org>
To: bug-guix <at> gnu.org
Subject: Gnome 46: some applications are not scaled correctly (gimp, vorta,
 vlc, freecad)
Date: Tue, 15 Apr 2025 19:45:58 +0200

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On Gnome 46 / Wayland with the Guix system (and linux kernel 6.13) and
a 200% scaled display, some applications are not scaled correctly, e.g.
gimp, vorta, vlc, freecad. 
Default gnome desktop applications, as well as other non-gnome
applications (libreoffice, icecat, etc.) are correctly scaled. 

These applications (gimp, vorta, vlc, freecad) were correctly scaled on
Gnome 44.

The problem appeared after a guix pull from gnome 44 to gnome 46 but
the problem can be reproduced from a fresh installation of guix system
with the gnome 46 desktop. 

I'll be happy to give you more details if necessary.

Christophe

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From: Maxim Cournoyer <maxim <at> guixotic.coop>
To: Christophe Pisteur <christophe.pisteur <at> fsfe.org>
Cc: 77830-done <at> debbugs.gnu.org
Subject: Re: bug#77830: Gnome 46: some applications are not scaled correctly
 (gimp, vorta, vlc, freecad)
Date: Tue, 08 Jul 2025 22:12:32 +0900

Hi,

Christophe Pisteur <christophe.pisteur <at> fsfe.org> writes:

> On Gnome 46 / Wayland with the Guix system (and linux kernel 6.13) and
> a 200% scaled display, some applications are not scaled correctly, e.g.
> gimp, vorta, vlc, freecad. 
> Default gnome desktop applications, as well as other non-gnome
> applications (libreoffice, icecat, etc.) are correctly scaled. 
>
> These applications (gimp, vorta, vlc, freecad) were correctly scaled on
> Gnome 44.
>
> The problem appeared after a guix pull from gnome 44 to gnome 46 but
> the problem can be reproduced from a fresh installation of guix system
> with the gnome 46 desktop. 

That has to do with a change in GNOME or GTK, that now does compute
things differently for Wayland. GTK 4 applications are immune to it, and
I think there are ways to make GTK 3 behave as well, as the latest Gimp 3
scales correctly for example.

So it's not a Guix issue but a GTK/GNOME thing that will be resolved by
each application in time.

Closing.

-- 
Thanks,
Maxim

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