In order to facilitate integration of thin mini-ITX boards into All-in-One chassis, the LVDS is enabled by default in BIOS in the following circumstances:
|Intel® Desktop Board||BIOS version||Board revision|
|DH61AG||0040 and later||G23736-504 and later|
|DH61AGL||0011 and later (all versions)||G71256-202 and later (all revisions)|
|DQ77KB||0036 and later (all versions)||G40294-402 and later (all revisions)|
|DN2800MT||0158 and later||G23738-802 and later|
As a result, Windows* detects the LVDS display as a second “Built in Display” in Graphics Properties as shown in Figure 1. This detection happens even if an LVDS panel has not been connected.
Figure 1. Multiple displays screen
To resolve this issue, disable LVDS in BIOS:
- During boot, enter the BIOS setup by pressing F2.
- Go to Configuration > Video.
- Set IGD Flat Panel to Disable.
- Press F10 to save and exit BIOS setup.