I have a very peculiar problem since about two days ago, and I hope any of you might help me out with pinpointing the faulty component.
I have a dual-monitor setup connected to a radeon hd6950 by powercolor,
so far one has been connected via a normal DVI cable and the other via a VGA->DVI adapter.
two or three days ago, the primary monitor (standard dvi cable) only showed black during boot, the power light blinking blue. rebooting helped, but after a while, it even didn't show anything after multiple reboots.
then, switching the cables to the other's dvi slot worked, but now, nothing I do gives any picture to the primary monitor. I had meanwhile connected the second monitor via an hdmi->dvi cable and it still works.
I tried switching the graphics card to the 2nd PCI-E slot, but it didn't change anything. the primary monitor works on another PC, so it's not faulty as well.
so my question is: is the graphics card 100% faulty and I need to exchange it? or is there any other possibility for a faulty component?