OK, I found the culprit. I first re-upgraded ghostscript.
Then I downgrading imagemagick and imagemagick-common to 3.1, but it was not enough to make it work again. Then I tried downgrading libmagickwand5, libmagickcore5, libmagick++5 to 3.1, and it works! Then I re-upgraded, one package at a time, and found out that libmagickcore5 is the problem. Downgrading only libmagickcore5_6.7.7.10-6ubuntu3.3_amd64.deb to libmagickcore5_6.7.7.10-6ubuntu3.1_amd64.deb makes it work again. So the problem is in libmagickcore5. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1647523 Title: convert command cannot create labels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1647523/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs