Screen goes blank while computer powering on and screen working [Closed]

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Registration date
Thursday August 17, 2017
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Last seen
August 17, 2017
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this been happening a while after i got my laptop the computer would be working fine then out of nowhere it blanks out but screen computer working it doesn't take any commands not even turn of i have to keep holding power button to shutdown even if it's in hibernate it happens it happens randomly it might stop for a week or happen 5 times on same day i tried using hdmi didn't work on another screen i tried removing graphic cards and installing them again i tried booting the laptop twice and it didn't get fixed i gave it back to warrenty system they said they fixed it it stopped for 10 days then happened again i would appreciate any ideas bec if i give it back to warrenty it takes so long before i get it back