Bug 1467108

Summary:	Blank transition from an animated png wallpapers
Product:	[Fedora] Fedora	Reporter:	Luya Tshimbalanga <luya>
Component:	f26-backgrounds	Assignee:	Luya Tshimbalanga <luya_tfz>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	26	CC:	awilliam, design-devel, luya, luya_tfz, mattdm
Target Milestone:	---	Keywords:	Reopened
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:	RejectedFreezeException
Fixed In Version:	f26-backgrounds-26.2.5-1.fc26 f26-backgrounds-26.2.6-1.fc26	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-07-11 20:55:39 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1450260
Bug Blocks:

Description Luya Tshimbalanga 2017-07-02 23:02:55 UTC

Description of problem:
A bug from mutter led to a blank transition to animated wallpaper in PNG format.
Workaround is to use JPEG images instlead

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

How reproducible:
Always

Steps to Reproduce:
1.Set animated PNG wallpaper
2.
3.

Actual results:
A blank in a transition from a PNG image to another

Expected results:
Smoother transition

Additional info:
As found by a reporter:

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

Comment 1 Luya Tshimbalanga 2017-07-02 23:07:26 UTC

Add depending bug for clarification.

Comment 2 Fedora Update System 2017-07-02 23:09:46 UTC

f26-backgrounds-26.2.4-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-9ab2094727

Comment 3 Fedora Blocker Bugs Application 2017-07-02 23:10:33 UTC

Proposed as a Freeze Exception for 26-final by Fedora user luya using the blocker tracking app because:

 A bug from mutter caused a blank transition from an animated PNG default wallpapers as used on Fedora 26. This fix uses JPG images instead

Comment 4 Kevin Kofler 2017-07-03 08:54:53 UTC

Are you sure that this change is not breaking other desktops also using the wallpaper? E.g., I see that you had to change the file list for -xfce, does that not need a configuration change to match?

Comment 5 Matthew Miller 2017-07-03 14:55:36 UTC

-1 FE because of risk to other desktops.

Also, I'd like the default wallpaper to at least be included somewhere in PNG format; it seems to only be in the JPEG converted versions now.

Comment 6 Fedora Update System 2017-07-03 18:24:26 UTC

f26-backgrounds-26.2.4-1.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-2017-9ab2094727

Comment 7 Adam Williamson 2017-07-03 18:45:42 UTC

Discussed at 2017-07-03 freeze exception review meeting: https://meetbot-raw.fedoraproject.org/fedora-blocker-review/2017-07-03/f26-blocker-review.2017-07-03-16.06.html . Rejected as a freeze exception issue: the concerns about effects on other desktops seem valid, and the usefulness of fixing this in the final compose seems quite limited. We would be happier for this to go through the full normal update cycle and go out as a regular update, perhaps preferring to fix the bug in mutter rather than changing the backgrounds we ship...

Comment 8 Fedora Update System 2017-07-05 05:53:08 UTC

f26-backgrounds-26.2.5-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-8081fffde3

Comment 9 Fedora Update System 2017-07-05 18:49:13 UTC

f26-backgrounds-26.2.5-1.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-2017-8081fffde3

Comment 10 Fedora Update System 2017-07-06 20:58:25 UTC

f26-backgrounds-26.2.6-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-ac1481dbfe

Comment 11 Fedora Update System 2017-07-07 23:08:33 UTC

f26-backgrounds-26.2.5-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.

Comment 12 Fedora Update System 2017-07-09 02:52:59 UTC

f26-backgrounds-26.2.6-1.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-ac1481dbfe

Comment 13 Fedora Update System 2017-07-11 20:55:39 UTC

f26-backgrounds-26.2.6-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.