[CentOS] Dell Lattitude E5430 -- split screen

Thu Nov 22 16:57:03 UTC 2012
Johan Vermeulen <jvermeulen at cawdekempen.be>

Dear All,

I installed CentOs on a brand new Dell Lattitude E5430.

I did a minimal install, then did a "yum groupinstall Desktop" and I 
installed  xorg-x11-drv-intel.i686.

Also, I installed a i686 CentOs on a 64bit system, thinking because it 
has 4Gb or ram, It makes no difference.

The screen is split top to bottom on the left hand side.

This was quickly solved by adding "nomodeset" to the kernel line in 
however now I can't add an external monitor or beamer.

Next I ran " Xorg -configure" and switched between vesa and intel 
driver, but the only thing that clears the spit screen so far is nomodeset.

Here is some hardware info:
              description: VGA compatible controller
              product: 2nd Generation Core Processor Family Integrated 
Graphics Controller
              vendor: Intel Corporation
              physical id: 2
              bus info: pci at 0000:00:02.0
              version: 09
              width: 64 bits
              clock: 33MHz
              capabilities: msi pm vga_controller bus_master cap_list rom
              configuration: driver=i915 latency=0
              resources: irq:28 memory:f6c00000-f6ffffff 
memory:e0000000-efffffff(prefetchable) iopor

I googled this and found some posts ( not with Centos ) from people 
reporting this solved by updating BIOS and adapting all sorts of settings.

Can anyone help me with this?

Many thanks already.

Greetings, J.

Johan Vermeulen
Caw De Kempen
johan.vermeulen at cawdekempen.be

Opensource Software is the future.