I installed Ubuntu 16.04.1 yesterday and have installed all necessary updates using
sudo apt-get dist-upgrade. However, upon reboot I'm in low graphics mode but none of the menu options do anything. I've also tried loading into failsafeX which is also not functional as GUI or as tty (it doesn't let me log in and is really low resolution). Previously on 14.04, I installed fglrx from the AMD site. But apparently this is depreciated.
My card is an MSI Radeon R9 390, which I believe fits into a category of 'HAWAII' or something.
Any help is appreciated. I can only work in tty and on a seperate partition of Windoze.
I still have the drivers I used previously in a folder. I checked and they're all .deb files. I've no idea if these are any use to me.
System details has my graphics down as 'Gallium 0.4 on AMD HAWAII (DRM 2.43.0, LLVM 3.8.0)'