Despite having the same Kernel, my graphic cards in my laptop was not supported. It looked like software rendering to me. Wobbly and a bit slow, and the machine turned the vents up to the max.
So I'm back again. I didn't know exactly why I did this in first place. Everything ran fine. Now I need a couple of days before everything is set up the way I want it.
Peppermint OS 4 is great. It's fast, simple and very easy on the resources. That apparently comes with a price. I can't confirm it 100%, but it looks some hardware support is lacking. It's all drivers I guess, and you could add that for sure, but I know it wqill be a heck of a work.So for small laptops and older desktops, it might work perfectly.
I'm a kind of "All hardware needs to be supported" type of guy. That's why I switched back so quickly. I need to play Rochard with full support :)