I have been trying to get Steam OS setup properly. I have it installed fully updated, but it will not fill the whole 1080p screen. There is a 1-2 inch border around the screen. All I want to do is stream from my main rig to the tv. Its an old dell box with a low end AMD R5, but it works fine with Windows 10 Preview. I have installed the latest AMD drivers, and can adjust the scaling to fill the screen in catalyst as root in desktop mode, but when I go back to steam Big picture mode it reverts. When I reboot it reverts in desktop mode also. I have tried all the workarounds, edits, cli entries and such found at the steam forums. I'm not a linux master by any means, but I can usually follow instructions. As an aside the streaming performance is abysmal compared to streaming to my windows laptop or the previous windows install. Is this still just a fun AMD issue with Steam OS? I know they were nvidia-centric when the software launched.
Any suggestions would be appreciated. Should I just install an Ubuntu based distro and add steam to it?