If I install all 5 of these in Cooker P6:
$ rpm -q kf6-kimageformats-avif shared-mime-info lib64avif libavif-tools qt-heic-image-plugin
kf6-kimageformats-avif-6.5.0-1.znver1
shared-mime-info-2.4-2.znver1
lib64avif-1.1.1-1.znver1
libavif-tools-1.1.1-1.znver1
qt-heic-image-plugin-0.4.0-2.znver1
Gwenview still will not display .avif picture. I never bothered reporting this because I do not see .avif used much but my conscience got to me so reporting now. What is weird to me is that in Dolphin sometimes the thumbnail for the .avif picture is displayed and sometimes it is not displayed. Am I missing a needed package for this? Is this because of a license issue?
This is the journal log:
journal-avif-issue.txt (366.5 KB)
I believe this issue also exists in Cooker and ROME P6 and P5. Would be great if other users can confirm. But the info here is from Cooker P6 on my laptop. Laptop has Cooker and ROME P6 partitions fully dsynced today. And I see same problem in ROME P6 also.