Created attachment 167173 [details] PNG Wide Gamut Photo (P3) STEPS TO REPRODUCE 1. Get the attatched photo 2. Open Dolphin 3. No Thumbnail at all. OBSERVED RESULT No thumbnail for png wide gamut photos (P3). Thumbnail should also display webkit logo. If there's red (if you fix), but there's still no logo then you failed to support wide gamut. In thumbnail there should be a webkit logo on red background. No logo=no support. Here not even red background. EXPECTED RESULT Fix the support for google/android and apple phones and their photos (wide gamut png). Webikit logo on Red should be visible. If there is no logo, then there's no support. NO LOGO=NO SUPPORT. SOFTWARE/OS VERSIONS: KDE Plasma Version: 6.0.1 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Graphics Platform: X11 Graphics Processor: Intel Only ADDITIONAL INFORMATION: $ pacman Qs 'xxxx': kdesdk-thumbnailers 24.02 kdegraphics-thumbnailers 24.02 ffmpegthumbs 24.02 qt6-imageformats 6.6.2 kimageformats 6.0.0 libpng 1.6.43 libavif 1.0.4 libheif 1.17.6 libwebp 1.3.2 libjxl 0.10.2 webp-pixbuf-loader 0.2.7 P.S. Gwenview displays thumbnails correctly. There is red background and webkit logo on it. Gwenview cannot display this photo. It displays only red background, but no logo, hence fail.
Hi - I'm having a go at triaging this one. I've copied your sample file into my Neon desktop and have mixed results. initially all I got was a red square thumbnail (see attached screenshot-fault.png) , but after opening it in Krita (a step I believe is unrelated, but noting it here for completeness) the thumbnail seemed to be rendered correctly (see attached screenshot-working.png). I have since copied this to another folder and I cannot get the same thumbnail to appear. This issue needs more work to reliably duplicate it. I'll keep trying but if the OP or anyone else can duplicate this reliably that would help. Nick
Created attachment 167267 [details] Thumbnail - faulty
Created attachment 167268 [details] Thumbnail - seems correct
Created attachment 167270 [details] No thumbnail after initial copy. I believe I have duplicated the original issue here, which is when copying the file into a folder Dolphin shows no thumbnail. If I then close and re-open Dolphin I can get the red square (without the logo) thumbnail, so something is not right with the way the thumbnail is generated. Setting this as 'CONFIRMED' since this reliably reproducible. I'm on the latest Neon.
*** This bug has been marked as a duplicate of bug 484183 ***