How to select a display adapter from a laptop which has dual graphic card's

Hi recently I have bought Toshiba satellite laptop it's model number is C55-b894 and installed opensuse 13.1 on it.

It has dual graphics card's due to which I think X Windows System is not functioning properly.

I have found in the laptop manual the following information related to graphics.
AMD Radeon™ R5 M230. memory amount : 1GB dedicated VRAM. memory type : DDR3 Video RAM

So I have installed amd catalyst software

I am providing the output of the two commands related to display configuration below

linux-lnx2:~ # glxinfo | grep render
direct rendering: Yes
OpenGL renderer string: AMD Radeon R5 M230 Series
GL_NV_conditional_render, GL_NV_copy_depth_to_color, GL_NV_copy_image,
GL_NV_conditional_render, GL_NV_copy_depth_to_color, GL_NV_copy_image

linux-lnx2:~ # /sbin/lspci | egrep "VGA|3D"
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
linux-lnx2:~ #

I want to use amd display adapter as default and ignore Intel's so I have went to BIOS configuration but I can't found any menu related to graphics card's configuration.

Can you suggest how to disable display Intel graphics card either in BIOS or OS level.