Re: f45-backgrounds available

Luya Tshimbalanga <[email protected]> Fri, 31 Jul 2026 21:29:33 -0700
Newsgroups	gmane.linux.redhat.fedora.devel
Organization	Fedora Project
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Date: Fri, 31 Jul 2026 21:29:33 -0700
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Subject: Re: f45-backgrounds available
To: [email protected]
References: <[email protected]>
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Content-Language: en-CA, fr, fr-CA, fr-BE
From: Luya Tshimbalanga <[email protected]>
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    <p><br>
    </p>
    <div class=3D"moz-cite-prefix">On 2026-07-23 11:32, Adam Williamson
      wrote:<br>
    </div>
    <blockquote type=3D"cite"
cite=3D"mid:296886e8ffac2e25ffda69bb797cb3c967534b46.camel@fedoraproject.=
org">
      <pre wrap=3D"" class=3D"moz-quote-pre">On Thu, 2026-07-23 at 08:37 =
-0700, Luya Tshimbalanga wrote:
</pre>
      <blockquote type=3D"cite">
        <pre wrap=3D"" class=3D"moz-quote-pre">On 2026-07-22 23:17, Kan-R=
u Chen wrote:
</pre>
        <blockquote type=3D"cite">
          <pre wrap=3D"" class=3D"moz-quote-pre">On Thu, Jul 23, 2026, at=
 3:11 PM, Adam Williamson wrote:
</pre>
          <blockquote type=3D"cite">
            <pre wrap=3D"" class=3D"moz-quote-pre">On Wed, 2026-07-22 at =
16:45 -0700, Luya Tshimbalanga via desktop wrote:
</pre>
            <blockquote type=3D"cite">
              <pre wrap=3D"" class=3D"moz-quote-pre">The *f45-backgrounds=
* package [1] is now available in Rawhide, ready for
the Fedora 45 release.
</pre>
            </blockquote>
            <pre wrap=3D"" class=3D"moz-quote-pre">This appears to be bro=
ken. KDE wallpaper is now solid grey, and journal
shows:

Jul 22 21:41:19 fedora plasma-setup[2022]: QImageIOHandler: Rejecting
image as it exceeds the current allocation limit of 256 megabytes
Jul 22 21:41:19 fedora plasma-setup[2022]: Memory cannot be allocated
</pre>
          </blockquote>
          <pre wrap=3D"" class=3D"moz-quote-pre">The image file is huge (=
12800x12800)

I filedhttps://forge.fedoraproject.org/design/backgrounds/issues/77

--
Kan-Ru Chen
</pre>
        </blockquote>
        <pre wrap=3D"" class=3D"moz-quote-pre">
The fix is now available on=20
<a class=3D"moz-txt-link-freetext" href=3D"https://bodhi.fedoraproject.or=
g/updates/FEDORA-2026-4500993c9c">https://bodhi.fedoraproject.org/updates=
/FEDORA-2026-4500993c9c</a>

The image file got resized to 8192x8192 and should load faster.
</pre>
      </blockquote>
      <pre wrap=3D"" class=3D"moz-quote-pre">
KDE still cannot load this. We still get blank grey backgrounds. In the
journal, I see:

Jul 23 13:44:07 fedora plasma-login-wallpaper[2636]: The PlasmaWindowMana=
gement protocol hasn't activated in time. The client possibly got denied =
by kwin? Check kwin output.
Jul 23 13:44:07 fedora plasma-login-wallpaper[2636]: Unexpected event 1 i=
nstead of JXL_DEC_FULL_IMAGE
Jul 23 13:44:07 fedora plasma-login-wallpaper[2636]: Unexpected event 1 i=
nstead of JXL_DEC_FULL_IMAGE

Those "Unexpected event 1 instead of JXL_DEC_FULL_IMAGE" messages seem
to show up multiple times, every time anything (plasma-login-manager or
the desktop) attempts to load the wallpaper. There are 8 instances of
that message total.</pre>
    </blockquote>
    <p>It turned out KDE Plasma will fail to properly render a lossy
      JPEG XL wallpaper with an embedded color profile.</p>
    <p>For the test, I shrank the wallpaper to a reasonable 5120 =C3=97 5=
120
      size and convert the PNG to lossless JPEG XL format via "cjxl -e 1
      -d 0" command.<br>
      According to the test run on GNOME Boxed F44 KDE edition, the
      wallpaper renders as expected.=C2=A0<br>
      The loading time should be smaller for low powered devices despite
      a 10+ Mib size.<br>
      <br>
      Here is the COPR link to access:
<a class=3D"moz-txt-link-freetext" href=3D"https://copr.fedorainfracloud.=
org/coprs/g/design-suite/fxx-backgrounds/build/10797078/">https://copr.fe=
dorainfracloud.org/coprs/g/design-suite/fxx-backgrounds/build/10797078/</=
a></p>
    <blockquote type=3D"cite"
cite=3D"mid:296886e8ffac2e25ffda69bb797cb3c967534b46.camel@fedoraproject.=
org">
      <pre wrap=3D"" class=3D"moz-quote-pre">
</pre>
    </blockquote>
    <pre class=3D"moz-signature" cols=3D"72">--=20
Luya Tshimbalanga
Fedora Design Team
Fedora Design Suite maintainer</pre>
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