Switched dvi connection from discrete radeon to i3-2120 gpu "no signal

[odsp]

Switched dvi connection from discrete radeon to i3-2120 gpu "no signal

I tried connecting the dvi cable from the discrete radeon 6670 to the onboard igpu
i also changed gpu setting to onboard in bios. the computer turns on but the led monitor says no signal and goes to sleep. i switched the dvi cable back to the discrete card and the bios setting back to pci x16 and it works fine. why cant i get the hd2000 to work? Has anyone else had this problem? i dont want to use hd2000
as main gpu just wanted to see how videos play on youtube using hd2000.

 

[genericrandom]

Try changing your monitor cable from DVI to VGA. Sounds silly but it worked for me.

 

[alphanumeric]

You may have to remove the Radeon 6670 to get the onboard to work. Detection of the dedicated card may disable it, regaurdless of the BIOS setting.