Laptop goes sleep when i leave it a while

[salvowsky123]

I want to download some games and it takes a long time to download it so i decided to leave it overnight, but my screen suddenly sleep after -+20 minutes but the keyboard backlight, mouse rgb led still on, and the fans and all the system is still on but the screen is kinda dark or grey. and i try to wake it up again but nothing happen. so i have to force shut down by pressing the power button and turn it on again

my laptop
Lenovo y520-15IKBN
i5-7300hq
8gb ddr4
gtx 1050
1tb 5400rpm
windows 10

i have changed the settings in the control panel. it says 10 minutes to turn off display while plugged in, sleep, etc. but i change it all to never but still the screen is sleep again
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pls can u help me i'm too tired to wait the download
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and sorry for my bad english

 

[KittyFish62]

go to the sleep setting and click the drop down menu and scroll all the way down and select never.

 

[salvowsky123]

@KittyFish62 i have changed it before

 

[traxxmy]

Seem to be more like a monitor issue than the PC. Anywa you have such a great CPU and GPU and RAm but you still use 5400RPM harddisk. Come one. Atleast go for 7200RPM HDD.

 

[KittyFish62]

I don't see how this could be a monitor issue, and you're getting way off topic here. We're not talking about how he should upgrade his computer. Anyways, I'm not sure what's happening. Maybe you didn't save your settings? I don't know.

 

[traxxmy]

Ooopss. Its a laptop, not a desktop with separate monitor