Computer keyboard shortcut. Switching between HDMI and laptop screen.

Hi folks.

I'm looking for a way to switch between HDMI and my laptop screen. Preferably a quick keyboard shortcut.
I have my laptop connected to my tv screen always, however, sometimes when i'm gaming on the tv i'll have to disconnect my HDMI to access my laptop screen, or will have to switch sources on my tv which i don't want to have to do. The laptop is a couple of years old and i worry that one day i will mess up the hdmi input pulling it in and out daily. I could probably explain it better but i'm not sure how to :)

I've done some of my own searching but people say to use the tv as a second screen or mirror the laptop screen. I find the light on my laptops screen distracting, why don't i close the laptop when i'm watching tv you say? The hinges are knackered plus when i open the laptop up again it starts mirroring my laptop screen again, it's inconvenient to say the least.

Thank you.
Adam

Most Notebooks/Laptops have a keyboard setting for control such as the Fn key plus another F key or other key/s for dimming/increasing the display, shouldn't affect the HDMI [or VGA on some] output. An example, my Vostro 1510 uses the Fn key plus the Up and Down arrows to make the changes while may ASUS uses the Fn key plus F5 or F6 for change.

I can't believe it. I've given my keyboard shortcuts a shot before, thought i pressed every button. I tried them again at your suggestion and guess what i've found the button that does exactly that. Though, in my defence it's the pg up and pg down keys. I assumed it was literal in that sense. Thank you very much! Not sure how i never noticed that before.

You're quite welcome, glad to help. And as you've found, there's differences between brands and even between models within a brand.