so recently ive been unable to use the F11 and F12 keys that usually adjust the brightness of my dell inspiron and so I went into device manager and I noticed that 'Intel(R) HD Graphics Family has a little yellow triangle with an exclamation mark on it and so obviously I went in to update driver software but nope it says its up to date and restarting doesn't do anything and its annoying me and idk if it has anything to do with the brightness issue but please help anything will be much appreciated thank you x