I've just assembled my new desktop computer and after installing Intel's latest HD 4000 drivers (going from basic Microsoft drivers), my monitor is not detected by Intel graphics (connected via a DVI cable), and my monitor does not sense any DVI signal input.
Everything is fine during the BIOS / Windows boot-up sequence (I can see the Starting Windows screen), but then the display goes blank (corresponding to the time Windows Log-on screen should be presented).
NOTE: As a temporary troubleshooting measure I've connected my old VGA monitor which seems to work fine.
Finally, I've extracted the following info from dxdiag in case it's necessary:
Time of this report: 1/5/2013, 02:25:53
Machine name: DJ-PC
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_rtm.101119-1850)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: To be filled by O.E.M.
BIOS: BIOS Date: 08/22/12 16:24:39 Ver: 04.06.05
Processor: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (8 CPUs), ~3.9GHz
Memory: 16384MB RAM
Available OS Memory: 16274MB RAM
Page File: 2028MB used, 30516MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.
DirectX Debug Levels
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)
Card name: Intel(R) HD Graphics 4000
Manufacturer: Intel Corporation
Chip type: Intel(R) HD Graphics Family
DAC type: Internal
Device Key: Enum\PCI\VEN_8086&DEV_0162&SUBSYS_D0001458&REV_09
Display Memory: 1696 MB
Dedicated Memory: 64 MB
Shared Memory: 1632 MB
What model is your Gigabyte* motherboard? Can you try using the VGA/Graphics driver provided by Gigabyte*? Also, are you connecting directly from your display to your system, or going through an AV/R device?
Lastly, on your monitor there should be a button (looks like a box inside another box usually), which is used for switching between display modes (VGA, DVI, HDMI, etc). Have you tried pressing that a few times while the system is up to see if it's just trying to display in the wrong mode?
Let me know if any of this works for you,