I tested some more JPG images from two different Android smartphones and I experiencing the same problem. These smartphones were upgraded some weeks ago and I think the problem is related to its Android version. Old JPG images are ok, but newer not.
Searching at the internet I found some users with similar trouble: https://forums.androidcentral.com/moto-g-2015/694693-moto-g-2015 -corrupted-photos-thumbnail-ok-but-can-opened-computer.html https://developer.samsung.com/forum/thread/s7-saving-invalid-jpeg- format-for- panoramas/201/303807?boardName=SDK&startId=zzzzz~&searchSubId=0000000045 https://github.com/libjpeg-turbo/libjpeg-turbo/issues/163 ** Bug watch added: github.com/libjpeg-turbo/libjpeg-turbo/issues #163 https://github.com/libjpeg-turbo/libjpeg-turbo/issues/163 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1747558 Title: JPG photo not viewable via default image viewer, but opens fine via Firefox To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gpicview/+bug/1747558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs