Thanks for reporting upstream, indeed the situation is suboptimal if adding the mimetype makes the image viewer open those files in low resolution...
** Changed in: gdk-pixbuf (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879488 Title: raw NEF thumbnails not processed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdk-pixbuf/+bug/1879488/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs