Official GIGABYTE Forum

Monitor connected to displayport doesn't show BIOS screen

Monitor connected to displayport doesn't show BIOS screen
« on: July 06, 2012, 01:56:08 am »
Hi,

I have a GA-Z77X-UD3H motherboard with the latest BIOS and the BIOS screen doesn't show up when I connect my monitor to the displayport of the motherboard (not a graphic card, the displayport on the motherboard itself i.e. the Intel HD4000).

The "Init display first" BIOS setting is set to "IGFX". The display doesn't wake up at boot time, only at the Windows 7 login screen, so I can't see/modify any BIOS settings. There is no adapter of any sorts on my cable, just a straight displayport cable with full size connectors on both ends.

If I connect a DVI cable instead of displayport, I don't have the problem. By the way the problem is not my monitor (a Dell U2410) because the displayport works fine on my other computer with a graphic card; the problem seems to be the HD4000 graphic on the GA-Z77X-UD3H motherboard.

So how can I make the display port work correctly? Is it a bug?

Thanks.

RobD

  • 108
  • 1
Re: Monitor connected to displayport doesn't show BIOS screen
« Reply #1 on: July 06, 2012, 10:53:12 am »
There seems to be lots of issues with dp around the web.
This thread might give some clues, especially the 2nd last post
http://forums.guru3d.com/showthread.php?t=360586

Dark Mantis

  • *
  • 18405
  • 413
  • 10typesofpeopleoneswhoknow binaryandoneswhodont
    • Dark Mantis
Re: Monitor connected to displayport doesn't show BIOS screen
« Reply #2 on: July 07, 2012, 06:19:00 pm »
Hi

The problem you arte having is that you have your monitor connected via a Display Port connection but are not using a powered(active) adapter. Either get an active adapter or connect the other port to one of your monitors.
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy