Hello Peter Sys, thanks for joining the Graphics community.
I would like to get some additional information from your system configuration.
Which is the current BIOS version on your board?
Are you using a video card?
Are you planning to have dual display or do you want to use a different video port instead of LDVS?
I got it.
With the hlp of HPUSBFormat and the itoolkit.exe taken from the Intel Integrator Toolkit I'v made a bootable -stick with this autoexec.bat
itoolkit -remove -reboot
Testet this boot file with a DH61DL and it seems to be ok.
But it did not work this way with the DH61AG.
Switch over to the blind configuration within config-mode.
Power off the board, remove the power-cord
Switch the jumper on the board to 2-3 position to enter the config-mode.
power on, wait a moment after the Pom-Pom-sound is over
The board will enter the confiuration-menu automatically
hit the arrow right-key two times
hit the arrow down-key three times
hit the Enter-key
hit the F9-key
hit the Y-key (think of the default american keyboard layout!) means hit the z-key with the german keyboard
hit the F10-key
hit the Y-key again
wait a moment,
power off, switch back the config jumper to 1-2 (normal mode)
power on the board
the Intel logo should appear shortly
and hit asap F2-key to enter the menu
go to the video->LVDS-config menu and disable the settings for any of those connected display.
Hit F10 key and leave the setup with saving the recently made settings.
Additionally I made the blue DVI-port the default videoport.