I just installed Fedora 22 on a fairly new (< 1 year) Toshiba laptop and everything Just Worked here. The only issue I've had to date was that a subsequent kernel upgrade seems to interfere with at least some Java apps. Eclipse runs great on the 4.0.4 kernel, but is almost totally unusable on the 4.1.4 and newer kernel. shrug

Not a huge deal since I can always keep booting 4.0.4, but I do hope they figure out what is going on, and fix it.