Bug 486268

Summary:	System Wallpapers installed via Fedora Repos don't show up in the Wallpaper Picker
Product:	[Plasma] plasmashell	Reporter:	Eric Reiner <reiner5>
Component:	Image & Slideshow wallpaper plugins	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	minor	CC:	dariocambie, notmart, qydwhotmail
Priority:	NOR
Version First Reported In:	6.0.4
Target Milestone:	1.0
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	metadata.json for f21 background

Description Eric Reiner 2024-04-28 21:02:21 UTC

SUMMARY
Fedora Repo wallpapers no longer show up in the wallpaper picker since upgrading to Plasma 6 (Fedora 40).
If I add a wallpaper from the directory individually by pointing to it's 1920x1080.jpg file, Plasma 6 realizes the "full suite" of a single image is present and grants it to the wallpaper picker but it refuses to look for all other images downloaded in the same parent folder.

I believe wallpapers from dnf are downloaded to usr/share/backgrounds but have aliases created where Plasma is looking: /usr/share/wallpapers. However, Plasma refuses to check these aliases unless I force it to for each individual image.

Plasma 5 (the previous version part of Fedora 39) automatically showed all wallpapers downloaded whether alias or not in the wallpaper picker.

STEPS TO REPRODUCE
1. Download any wallpaper set from Fedora Repos (f21-backgrounds-base, for example).
2. Go to the Wallpaper picker in Plasma.
3. The new wallpapers don't show up in the grid to be selected.

OBSERVED RESULT
The new wallpapers don't display.

EXPECTED RESULT
The new wallpapers should display.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 40
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION
N/A

Comment 1 Dario Cambié 2024-04-28 21:51:35 UTC

Created attachment 168983 [details]
metadata.json for f21 background

Comment 2 Dario Cambié 2024-04-28 21:52:39 UTC

    It seems you are looking for `f21-backgrounds-kde` instead of `f21-backgrounds-base`. But that's not enough, you also need to add the attached `metadata.json` file in `/usr/share/wallpapers/F21/`.

    Long explanation:

    Indeed  `f21-backgrounds-base` installs files in `/usr/share/backgrounds/f21` (as per `$rpm -ql f21-backgrounds-base` output) and Plasma looks in `/usr/share/wallpapers/` where e.g. it correctly finds Fedora Forty's theme. So you were almost there, by checking which package installed the files in the wallpapers folder (e.g. by `rpm -qf /usr/share/wallpapers/F40/`) you'd get `f40-backgrounds-kde-40.2.0-1.fc40.noarch`. This suggests that, among the [https://packages.fedoraproject.org/pkgs/f21-backgrounds/](f21-backgrounds packages) you'll need the kde one.

    However, you'll find that installing the package alone is not enough. Notably, if you've upgraded multiple Fedora version on the same PC, only the backgrounds from F39 and F40 are shown. Digging a bit in the relevant backgrounds folders shows that only backgrounds from F39 onwards have the new metadata.json format, previous version used the metadata.desktop that seems to be ignored now.

Comment 3 Eric Reiner 2024-04-28 22:22:37 UTC

Ok I will just choose image files from previous distros instead that I wish to keep the backgrounds for.

Thank you!