ubuntu 12.04 instalation crash

[6iixjjpU]

I'm trying to dual boot ubuntu with my windows 8 on a dell Inspiron 15 3521. When I go into the boot menu and select to start with the instalation disk, i get white diagnal lines and it gets stuck there. I also have an iMac where I installed ubuntu on with the same disk. It also get simular lines but after a minute or less it did continue to the instalation without any problems.

[EDIT]
My laptop specs are:
6GB RAM
i5 3337U
Intel(R) HD Grapfics 4000 (I think this is the primary gpu)
AMD Radeon HD 8730M
http://i.imgur.com/JrFB8vS.jpg

[fantab]

Post details about your laptop specs, like RAM, CPU Graphics etc.
In Windows 8 have you disabled 'FastStartup' (http://www.eightforums.com/tutorials/6320-fast-startup-turn-off-windows-8-a.html)?

[6iixjjpU]

I did and it didn't help, I also updated my post

[fantab]

You have Hybrid Graphics (https://help.ubuntu.com/community/HybridGraphics). Sometimes it is necessary to have the AC plugged in to power primary GPU.

For now use 'Nomodeset (http://ubuntuforums.org/showthread.php?t=1613132)' option and see if it helps.

If it doesn't help then wait for some expert advice...