Valve is probably hoping to promote SteamOS and Steam Link streaming device, but it effectively means that normal PC users are forced into a game console-style interface for adjusting their Steam Controller settings. So, to begin the process, you’ll have to use your mouse to click on the Big Picture Mode button at the top right corner of the desktop Steam interface. Unfortunately, the Steam Controller can only be adjusted in Steam’s TV-friendly Big Picture Mode. Get Comfy with Big Picture Mode and Pair Your Controller Just as the double-touchpad design takes some getting used to, its software needs some serious tweaking by the end user.
Valve’s self-branded Steam Controller might just be the most exciting thing to emerge in video game inputs in a decade…but that doesn’t mean it’s intuitive to set up.