This tanked Vulkan performance in ' The Talos Principle . ' From 96 to 25 fps . Opengl benefited from the change . From 17 to 58 fps . I opt to change it back . Specs GTX 750 Ti , 375 . 20 driver version , LXDE desktop , Xorgserver 1 . 19 compiled last week , libdrm upgraded as well , kernel 4 . 9 rc 6 , I am using user ' nerd 65536 ' configwith triplebuffering enabled . <| sep |> That ' s all the controller ' s have , pressure derived altitude from the plane . Only times this isn ' t true is when you have primary radar within 50 ish miles of major airports and air force bases or the pressure alt is turned off and then you get geometric altitude from the aircraft ' s gps system . <| sep |> Yes , watched him for 2 seasons . The lad is made of glass . In both his WBA seasons he only managed to start about 710 matches per season . Not because of poor form but just as he got into a groove he got injured like clockwork . Think I saw him complete 90 minutes a total of 5 8 times in his 2 seasons combined at the club .