There is definitely a problem with Nautilus and only with Nautilus. No need to make jasper shoulder the GNOME responsibility.
On Ubuntu Trusty 14.04 I have installed both Marlin and Nautilus / Nemo. Marlin has no problem previewing JPEG 2000 thumbnails in .j2k or .jp2 format. However Nautilus [3.10] / Nemo (both) are constantly crashing. e.g. nautilus crashed with SIGSEGV in jpc_qmfb_join_colgrp() On the command line running jasper is working fine too (Cevennes2.jpg is coming right from the official website http://www.openjpeg.org/index.php?menu=samples) $ jasper --input Cevennes2.jp2 --output Cevennes2-bis.bmp --output- format bmp When will Nautilus behave appropriately for JPEG 2000 thumnbails ? This is dating for years ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/427100 Title: JPEG2000 thumbnail causes browser to crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jasper/+bug/427100/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs