Why is my screen so dark when waking up?

[Windows Central Question]

Ever since updating to Windows 10 when I wake my computer up after being asleep the screen is so dark you can barely see it. I've tried brightening it but that doesn't work. The only way for me to get it bright enough to read the screen is to turn it off and back on again. I can't let my computer fall asleep at all. I either have to keep touching it or turn it off completely. It worked perfectly before the update!

How can I fix this?

 

[z4raggs]

I just updated to Windows 10 yesterday...and now I have the same problem. When waking from sleep mode, the screen is very dark--almost black, but light enough to discern images, just not light enough to find where the cursor is. Very frustrating! Must reboot in order to return to a normal screen. How can I fix this? Please help! Thanks so much!!!