display idle due to motherboard

hmr123

Honorable
Apr 6, 2013
1
0
10,510
i have a laptop from last three year but no problem occur yet.now my problem is when i turn my computer on then it starts normally & working as usual but sometimes it display stops working,i mean to say its display goes to idle and shows arbitrary color as straight bars...and remain in this stage until & unless power supply turned off by pressing the power button......i want to know to fix this problem? plz help.....