I have set the computer not to sleep when it's on a charger since it was taken out of the box cuz I usually stream vidoes from it.If I let it stream to TV with VLC after ~30-40 miutes (sometimes less than 20 min) it stops...The streaming stops and the display won't turn on back.The power button still has light, if I push any key, the whole keyboard goes lit, but no response besides this, no picture, no sound nothing...The only way I can get it back to work with hard reset (power off for 20 sec) then turn it back. Nothing else worked for me yet.