[Bug 1450260] New: Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

            Bug ID: 1450260
           Summary: Complete dark transition between day and dusk
           Product: Fedora
           Version: 26
         Component: f26-backgrounds
          Severity: low
          Assignee: luya_tfz(a)thefinalzone.net
          Reporter: luya(a)fedoraproject.org
        QA Contact: extras-qa(a)fedoraproject.org
                CC: design-devel(a)lists.fedoraproject.org,
                    luya_tfz(a)thefinalzone.net



Description of problem:
The transition from day to dusk in the animated wallpaper is completely
darkened.

Version-Release number of selected component (if applicable):
26.2.1

How reproducible:
Always

Steps to Reproduce:
1.
2.
3.

Actual results:
Tranition is completely darkened

Expected results:
Tranisiton should be subtle smooth

Additional info:
Dusk part of animated wallpaper will need adjustment.

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260



--- Comment #1 from Luya Tshimbalanga <luya(a)fedoraproject.org&gt; ---
Example of transition:
https://framapic.org/REub4EjX93ep/WeW8vo8DRVEA.png

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Gwendal <URv7n8hpS9_redhatbugzilla(a)bousse.fr&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |URv7n8hpS9_redhatbugzilla@b
                   |                            |ousse.fr



--- Comment #2 from Gwendal <URv7n8hpS9_redhatbugzilla(a)bousse.fr&gt; ---
With the animated wallpaper, I also encountered the case where before 9:00 I
had the normal bright version of the wallpaper, and then it became 100% purely
black at 9:00 sharp (ie. as if there was no wallpaper anymore).

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260



--- Comment #3 from Luya Tshimbalanga <luya(a)fedoraproject.org&gt; ---
(In reply to Gwendal from comment #2)
>  With the animated wallpaper, I also encountered the case where before
> 9:00 I
>  had the normal bright version of the wallpaper, and then it became 100%
>  purely black at 9:00 sharp (ie. as if there was no wallpaper anymore). 
Strange. That is not a normal behaviour from the transition unless it is
somewhat broken. I will take a look.

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260



--- Comment #4 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
f26-backgrounds-26.2.2-1.fc26 has been submitted as an update to Fedora 26.
https://bodhi.fedoraproject.org/updates/FEDORA-2017-6f9e2042dc

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Fedora Update System <updates(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |MODIFIED



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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260



--- Comment #6 from Luya Tshimbalanga <luya(a)fedoraproject.org&gt; ---
(In reply to Gwendal from comment #2)
>  With the animated wallpaper, I also encountered the case where before
> 9:00 I
>  had the normal bright version of the wallpaper, and then it became 100%
>  purely black at 9:00 sharp (ie. as if there was no wallpaper anymore). 
I verify the code which looks all fine. It appears a bug from the xml parser
failing to retaining the initial image from transitioning

https://paste.fedoraproject.org/paste/TGPS18F92cEflRpF2elnTV5M1UNdIGYhyRL...

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Fedora Update System <updates(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|MODIFIED                    |ON_QA



--- Comment #5 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
f26-backgrounds-26.2.2-1.fc26 has been pushed to the Fedora 26 testing
repository. If problems still persist, please make note of it in this bug
report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here:
https://bodhi.fedoraproject.org/updates/FEDORA-2017-6f9e2042dc

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Luya Tshimbalanga <luya(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fmuellner(a)redhat.com,
                   |                            |otaylor(a)redhat.com,
                   |                            |walters(a)redhat.com
          Component|f26-backgrounds             |mutter
    External Bug ID|                            |GNOME Desktop 782928
           Assignee|luya_tfz(a)thefinalzone.net   |fmuellner(a)redhat.com



--- Comment #7 from Luya Tshimbalanga <luya(a)fedoraproject.org&gt; ---
(In reply to Gwendal from comment #2)
>  With the animated wallpaper, I also encountered the case where before
> 9:00 I
>  had the normal bright version of the wallpaper, and then it became 100%
>  purely black at 9:00 sharp (ie. as if there was no wallpaper anymore). 
After debugging the issue with Gnome team, it turned out a bug with Mutter
having an unexpected behaviour leading to a blank while in the transition.
Assigning the issue to the right component and attach the upstream report.

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Luya Tshimbalanga <luya(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ON_QA                       |ASSIGNED



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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Fedora Update System <updates(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|---                         |ERRATA
        Last Closed|                            |2017-06-09 15:02:51



--- Comment #8 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
f26-backgrounds-26.2.2-1.fc26 has been pushed to the Fedora 26 stable
repository. If problems still persist, please make note of it in this bug
report.

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

James Ye <lolz836(a)gmail.com&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lolz836(a)gmail.com



--- Comment #9 from James Ye <lolz836(a)gmail.com&gt; ---
As noted by someone else on bodhi[0], this bug still exists in
f26-backgrounds-26.2.2-1.

I have discovered that if all wallpapers are converted from PNG to JPEG format,
the transitions work as expected. Indeed, the default GNOME animated background
and previous Fedora animated backgrounds all used JPEG images, so this is
likely to be an issue with GNOME's handling of transitions with PNG images.


[0]: https://bodhi.fedoraproject.org/updates/FEDORA-2017-6f9e2042dc

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260



--- Comment #10 from Luya Tshimbalanga <luya(a)fedoraproject.org&gt; ---
(In reply to James Ye from comment #9)
>  As noted by someone else on bodhi[0], this bug still exists in
>  f26-backgrounds-26.2.2-1.
>  
>  I have discovered that if all wallpapers are converted from PNG to JPEG
>  format, the transitions work as expected. Indeed, the default GNOME animated
>  background and previous Fedora animated backgrounds all used JPEG images, so
>  this is likely to be an issue with GNOME's handling of transitions with PNG
>  images.
>  
>  
>  [0]: https://bodhi.fedoraproject.org/updates/FEDORA-2017-6f9e2042dc 
Thanks for finding out the issue. The package is now built to address the
problem.

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260



--- Comment #11 from Fedora Update System <updates(a)fedoraproject.org&gt; ---
f26-backgrounds-26.2.4-1.fc26 has been submitted as an update to Fedora 26.
https://bodhi.fedoraproject.org/updates/FEDORA-2017-9ab2094727

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[Bug 1450260] Complete dark transition between day and dusk

https://bugzilla.redhat.com/show_bug.cgi?id=1450260

Luya Tshimbalanga <luya(a)fedoraproject.org&gt; changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |1467108




Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1467108
[Bug 1467108] Blank transition from an animated wallpapers
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