Ubuntu 13.10 Mouse Scroll Wheel does in work in GTK3 apps

Solution 1:

Here is a bug notice for this:

https://bugs.launchpad.net/compiz/+bug/1200829

There is a ppa with patched GTK code that fixes the issue

https://launchpad.net/~mc3man/+archive/test-scroll

I can confirm the ppa code fixes the scroll wheel issue