I now know that this is a graphics driver bug (there is a tiny possibility that i could be caused by damaged/faulty video hardware, but I doubt it). It will need a fix by the upstream developers, most likely in the linux kernel or possibly in the xserver-xorg-video-ati package. Unfortunately I have noticed that very little development is done anymore on the drivers for the Mobility Radeon 7000 and similar cards, probably because they are so old.
** Package changed: firefox (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/578395 Title: jpg corruption of large images To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/578395/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
