5 Tungsten

Re: Letter keys not working while holding Fn key (New Dell g3 15 gaming laptop)

Some keyboards can only register a certain number of simultaneous key presses at a time, and sometimes that limit is different based on which specific keys are being pressed. As a workaround, press Fn+Esc so that pressing the F1-12 keys without pressing Fn triggers the F1-12 key rather than whatever alternate function is printed on those keys. That way you won’t need to use the Fn key at all. And of course you can switch back after exiting Minecraft if you prefer those keys to act as multimedia keys while in Windows.