I also had a little difficulty getting sound working properly (in KDE). Also, wireless networking was okay initially but broke after an update. The wireless card, for some reason, would no longer connect to the access point, and I spent a lot of time trying to isolate the problem. I went so far as to attempt to replace the proprietary wl driver with a windows driver using ndiswrapper, but without success. Finally, I realised that the problem was solved by changing the access point encryption from wpa to wpa2. Evidently the driver supports the latter better than the former. My next effort was with KVM. After modprobing tun, kvm and kvm-intel virt-manager worked well and I was able to use it to install and run a virtual machine. Unfortunately, wireless networking the linux bridging do not seem to work well together. A google search reveals a good workaround involving tap and proxy arp, which I haven’t tried and probably won’t bother at this stage. I do not envisage that any virtual machines run on my Macbook will need to be exposed to the outside network, default nat networking should be fine.

Overall, I am enjoying the experience. The screen is great. Compositing works well. The battery life does not seem to be too bad. The keyboard layout takes some getting used to, but I’m getting better at it. My next moves will probably be to encrypt the swap partition also, and to move /boot to the LVM.