Bug 513309

Summary: Can't add PNG images as custom wallpapers
Product: [Plasma] plasmashell Reporter: Ed Kolis <edkolis>
Component: Image & Slideshow wallpaper pluginsAssignee: Plasma Bugs List <plasma-bugs-null>
Status: NEEDSINFO WAITINGFORINFO    
Severity: normal CC: nate, notmart, qydwhotmail
Priority: NOR    
Version First Reported In: 6.5.3   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Ed Kolis 2025-12-13 17:51:49 UTC 
SUMMARY
if I try to add a PNG image as a custom wallpaper, it is not added to the list of available wallpapers. I can add an JPG image just fine.

STEPS TO REPRODUCE
1. Right click the desktop.
2. Choose Desktop & Wallpaper from the context menu.
3. Set the wallpaper type to Image.
4. Click the Add button to add a new image.
5. Choose a PNG image in the file picker.
6. Click Open.

OBSERVED RESULT
Nothing happens.

EXPECTED RESULT
The PNG image is added to the list of available wallpapers as it is when a JPG image is selected. It would be nice if this image were also set as the active wallpaper, but that's not essential.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Bazzite 43
KDE Plasma Version: 6.5.3
KDE Frameworks Version: 6.20.0 
Qt Version:  6.10.1

ADDITIONAL INFORMATION
N/A
Comment 1 Nate Graham 2025-12-16 22:35:59 UTC 
Can't reproduce on current git master.

Does this still happen in a new clean user account on the same computer?
Comment 2 Ed Kolis 2025-12-17 14:20:38 UTC 
Well that's weird, now it seems to be working. I had some pictures in two folders (~/Pictures and ~/Pictures/Wallpapers), and the ones in the first folder had thumbnails in the file picker dialog while the ones in the second didn't. I could pick the PNGs in the first folder and add them as wallpapers, but not the ones in the second. Once I picked a PNG from the first folder, which I hadn't tried before, the thumbnails appeared for the pictures in the second folder, and I could choose them as wallpapers too.
Comment 3 Nate Graham 2025-12-19 17:13:52 UTC 
How strange. Is ~/Pictures/Wallpapers by any chance a symlinked location or a network share or something?
Comment 4 Ed Kolis 2025-12-19 17:19:04 UTC 
~/Pictures/Wallpapers itself isn't a symlink, but ~/Pictures is a symlink to /var/mnt/data/Pictures.
Comment 5 Nate Graham 2025-12-22 22:16:11 UTC 
I strongly suspect that's related somehow.

Is /var/mnt/data/Pictures a local disk, or a remote network share of some kind?
Comment 6 Ed Kolis 2025-12-23 15:42:29 UTC 
/var/mnt/data is a partition on an external hard drive attached via USB. It's formatted as NTFS so I can also access it from Windows whenever I need to boot into Windows. This is how it's mounted in /etc/fstab:

UUID=0E5E17E60E5E17E6 /var/mnt/data auto nosuid,nodev,nofail,x-gvfs-show,umask=0000,uid=1000,gid=1000,case=force 0 0