I'm experiencing the same with LaTeX files having long lines! If I change the highlighting, for instance, to .ini or a lot of other languages, the long delays go away when inserting text at the beginning of the line.
I created an example for testing (cf. attachment). Try to insert some characters at the beginning of the line. Thanks a lot in advance! ** Attachment added: "Test file for LaTeX" https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/818642/+attachment/2471258/+files/test.tex -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gedit in Ubuntu. https://bugs.launchpad.net/bugs/818642 Title: response to typing is very slow with code highlight with some files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/818642/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs