The problem seems to come from 'convert', part of the imagemagick package. Use the following command in the terminal with the attached file (2mb; good orientation tag) to produce a file with the bad orientation tag:
convert -quality 80 -resize 800x600 00001.jpg 00001-bad.jpg ** Attachment added: "00001.jpg" http://launchpadlibrarian.net/16419232/00001.jpg -- bad orientation tag causes gthumb to show strange value https://bugs.launchpad.net/bugs/178575 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gthumb in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs