Thanks for the suggestion, after deleting the thumbnail cache with: rm -rf ~/.cache/thumbnails
Nautilus is now correctly showing the embedded cover art for my existing .m4a files. To better understand the behaviour, I made an additional test: 1) I downloaded an .m4a file without embedded artwork 2) I added a cover image to the file 3) I refreshed the folder in Nautilus (F5), but the thumbnail didn't update 4) Only after renaming the file did Nautilus generate and display the correct thumbnail This makes me think the issue might be related to Nautilus not regenerating thumbnails for files whose content has changed unless the filename also changes, so it could indeed be a caching behaviour rather than a decoding issue. In the past, I'm quite sure .m4a covers were not showing at all. My whole music library is on a USB drive, and back then no .m4a file showed a thumbnail, while .mp3 files worked normally. So it's possible that an older issue has since been fixed, but the stale cached thumbnails persisted on my system until now. Thanks again for the help, I'll keep the rm -rf ~/.cache/thumbnails workaround in mind for the future -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2111560 Title: Nautilus does not show embedded album art thumbnails for .m4a files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/2111560/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
