@sudburr I don’t know exactly what’s causing the problem in the future kernels. Tie that into the fact that not a whole log changed from moving to 3.19.* from 3.18.*. If you would like to see if there’s more, you could try building your own kernels. Of course, I ask if you can, if you figure it out, please let me and/or the community know what had to happen.
Here’s a link that should at least help you with getting started: https://wiki.fogproject.org/wiki/index.php/Build_TomElliott_Kernel.
make ARCH=i386 menuconfig
phases, check out the options and try to remember what you’ve changed or whatever.
I do know it’s a bit of work but I haven’t had any in finding a working option for you.