How to fix the white blank screen on laptop

My laptop after turning on, shows black screen then after that, it will stop in white blank screen. As in no arrow or any display. It also had a sound like welcome tone? I tried to click the capslock and i think its working because the light turns on. I dont know what to to. I didnt used it for a month and after turning it on, thats all what i observed. I think it got stock? Pls help me on how will i fix this. I need to get all the files and the photos. Also i dont have a cable to connect on other pc or tv to know if the video card is the problem.