I open a new thread with the theme not working when integrated graphics driver installed, after having this problem and found at least three threads with exactly the same problem without any solution that Intel provides:

http://communities.intel.com/message/141258 # 141258

http://communities.intel.com/message/147428 # 147428

http://communities.intel.com/message/84621 # 84621

I build small Pc's, I have material strength and extensive testing I could do about it. I explain the situation:

Recently I tried a Dell P190 monitor, with motherboard Intel DH61AG with DVI-DVI cable. The problem is described in the forums:

1. Display BIOS: OK

2. Windows logo OK

3. Black screen: Digital Input: no signal.

That is, the digital video signal is lost while loading the driver. If you boot the PC in safe mode, the digital signal reaches no problem going to monitor. If  loading drivers one by one, the digital signal reaches to load the display driver.

Analysis of variables:

- Maybe the monitor?

- The Dell P190 plays no problem in digital signal from another PC with ATI graphics

- The Dell P190 reproduced digital signal without any problem while install the Operating System until the driver is installed 

Conclusion: Is not the monitor

It can be the cable?

With DVI-DVI cable with another PC, no problem

The same plate and driver, a TV with HDMI cable, no problem

With DVI-VGA cable (analog), no problem

Conclusion: Is  not the cable

Maybe the motherboard?

The same motherboard connected to TV HDMI, no problem

The motherboard itself is connected to another monitor (Belinea 20.1 ") with DVI, no problem

Conclusion: It is not the motherboard

I tested with and W7x32 W7x64: Always the same problem

I updated the BIOS: Always the same problema

Conclusion: There is a certain incompatibility between the software (driver) and a feature that does not know for certain monitors. We know Dell P190, Viewsonic LCD monitor, Samsung DVI monitor, Zalman heritage 22 "Viewsonic VA-912, Viewsonic VX2035wm, HP 2509m and another that is sure to leave me.

perhaps too many monitors to Intel fails to respond...