I have recieved a computer with Intel motherboard chipset DH67CL and on board GPU DT GT2. I have connected a DVI monitor (Acer AL1721 or iiyama prolite e481s). I have installed Windows 7 64 bit (Enterprise) and everything was fine but the resolution (800x600). I have changed the resolution on windows to 1280x1024 but the resolution on the display didn't change and it automatically switched back to 800x600. Then I have tried a lower one 1024x768. This worked better then 800x600 so it is still in this resolution. I also have realised that windows recongizes my DVI connected monitor as "Generic PnP Monitor ın Standard VGA Graphics Adapter"
My most important problem is, that after Windows Update "Intel Corporation - Display - Intel(R) HD Graphics Family" (Published 12/7/2011) I can't see the Login screen in windows. After the update it requires a reboot. After the reboot I can see the Windows Logo with "Starting Windows..." text. But then instead of jumping into the login screen "No signal" appears on my monitor (with both monitors mentioned above). So I reboot windows in secure mode and restore system before the update and everything works fine.
I have tried different resolutions, newest drivers of Intel but no chance... And I really can't figure it out how to show Windows that it is NOT a VGA adapter BUT a DVI?
Edit 1: Actually I have downloaded the drivers from Intel's website... I got the computer from university and I can't reach anyone, who built it. I have found the chipset and GPU model numbers with AIDA64. But still have this problem... I also have switched in BIOS under "Primary Video Adapter" from "Auto" to "Int Graphics (IGD)" (There were also "Ext PCIe Graphics (PEG)", "Ext PCI Graphics" and "Manual"). And under "IGD Primary Video Port" from "Auto" to "DVI-I (Blue) Digital". Still no signal in login screen.
Edit 2: Display adapter shown in "Device Manager" is "Standard VGA Graphics Adapter" and the associated driver is: Driver Provider: Microsoft Driver Date: 6/21/2006 Driver Version: 6.1.7600.16385 Digital Signer: Microsoft Windows
And "the device is working properly."
Edit 3: Other driver versions... Intel(R) 82579V Gigabit Network Connection: 220.127.116.11 Intel(R) Display Audio: 18.104.22.16874 Realtek High Definition Audio: 22.214.171.12482 Most of all others are also Microsoft 6.1.7600.16385