My laptop screen has suddenly gone darker than normal, it isn't so dark that I cannot use it, but it is more difficult to see. My laptop is an Acer Aspire 5315 and is a wireless connection. I use Opera and Firefox but it is the same on both. Would be grateful for any suggestions.
Look for some keys with little pictures of suns on them (often the arrows, but not always) and then hold down the Fn key and use the keys with the suns on to adjust the brightness.
so set the resolution settings back by increasing the brightness, decrease the contrast .
you can do all this things from the right click on the desktop> select the graphics properties.
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Just hold the FN key and press the right arrow key on the bottom right of the keyboard, as already said.
If adjusting the brightness (as above) doesn't help, it could be that the backlight has gone. If the machine isn't under warranty it's usually not too difficult to replace (dependent on your skills/confidence), but if you don't think you're up to dismantling the screen and possibly a bit of soldering you may need to take it to a repair shop.