No screen on dc power

[RizlaKing]

Hi guys looking for any quick answers here before i get on the phone to company about this want to make sure it isn't a simple setting i am missing. Daughter has a Acer Aspire 8930G-864G64Bn delivered yesterday and when i plug the dc lead in and try to boot the laptop it gets to the chose your account screen on vista i click her account and the screeen goes completely dead. If i boot from the battery everything is fine but if i get to desktop and then plug the dc lead in the screen will go off again within a few minutes. I have bugger all to do with laptops normally so i havn't got a clue about all the power stuff and suchlike so i am wondering if there is a setting that is causing this or if it is a bigger problem that i need to get the company to come and sort hence asking you nice people here . Have booted into safe mode fine with the power lead connected but when i try to use normal accounts bang no screen still no closer to figuring this out.

 

[RizlaKing]

No it is just the screen that goes off the laptop is still working away just can't see anything.

 

[RizlaKing]

Yeah for the acer laptops you press fn + f5 but that didn't do anything at all and all the settings are correct. I am waiting for them to call me back it is less then a week old so given it doesn't appear to be something simple to do on my end best bet is to send it back to them for repair. Thanks for the help i tried them as it was worth a go but i guess you just can't sort everything all the time .