I recently removed my 7970 from my work PC.
I have enabled the HD4000 in the motherobards BIOS.
Gave it memory allocation (tried all settings from 64Mb - 1GB), set the bios to auto and force igpu modes.
I used ATI and DiverSweeper apps to remove all legacy drivers/software and checked registry keys have been removed too. All OK there.
I then rebooted, installed intels HD4000 driver Win64_15319.exe ( I also tried the ZIP version just in case )
I have attached 1 monitor, a 27" Dell u2711 (2560x1440) to the Display Port connector on the motherboard. (GIGABYTE Z77X-UD3H).
The problem in Windows 7-64 Pro:
It works fine, as in I can see windows, see my BIOS and use my PC in a basic mode.
I have no intel control panel for the HD4000.
I have no aero.
I have very laggy window movement.
I can't longer see my monitor in settings, it now defaults to "default monitor". It was working fine before. Fully callibrated and custom ICC set up.
I have no recognised video card installed as far as "desktop display settings" are concerned, but it shows in device manager.
If I turn off my monitor, thats it, gone **pomf** I have no monitor, it does not resume, same if windows suspends the display or sleeps. (I have had to disable these, but they were set to 4 hours anyway because this screen is colour calibrated and needs to stay on for consistency).
I get no error messages or issued with installing the driver software, reboot, and back to square one.
So, essentially, I can see the screen working but I have no drivers installed and no hardware support on this system.
I have tried several versions of intel drives, nothing seems to work. I can't get the drivers to install and work.
I only purchased this "intel" based board/cpu for this very reason, to not have the gaming card in my work machine.
Now I can't work, trying anything basic on this without the drivers is painful. My "work" is graphics(2d) based so I need at least some sort of video card support to render photographic works in photoshop/lightroom and other programs.
See screenshots below:
(1) HD400 does not even register as here.
(2) Monitor now shows as default, it was always working perfectly fine before.
(3) HD4000 shows in device manager OK
If you have any suggestions?
Is there anything this installation relies on that may be causing the issue? (as far as I can tell all my .net and other stuff is all up to date).
I'm at the point where I want to put my foot through the screen.