Asus K56C vertical stripes when rebooting

[Ziil]

I am having issue with my asus k56c laptop for a while. If I reboot laptop then vertical stripes appear and laptop wont boot up. Then I have to boot up several time for successful boot up (usualli I hold laptop from bottom right corner to have little bit pressure, seems it helps, but not sure ). Same stripes appeare also when laptop have been in sleep for a while, but in this case stripes dissapeare at this moment when screen switch to sign in screen, this moment screen brightness also changes for a second.

I also made video for better understanding: https/www.youtube.com/watch?v=YVdi_civ45U

Seems that this is some graphic card hardware problem, but it is strange, because it is existing only when booting up. If laptop successfully booted up already then no problems at all even when playing games.

I already have tried different graphic card drivrers but no luck so far.

laptop spec.: Intel Core i5-3337U 750 GB 24GB SSD 8 GB intel hd4000 + GeForce GT 740M

Hopefully someone here have similar experience and found solution.

 

[fagetti]

you have intel hd4000 graphics try using that only if problem appears on boot. Try change it in bios or amd settings. You need to set it so its on all the time not only in games etc