I'm having trouble connecting DVI.
VGA works fine, but I have 144hz monitor so I need DVI desperately... ...
I've also tried connecting VGA and DVI at the same time and remove VGA, but It didn't work.
Monitor showed nothing but the black screen.
I've installed Catalyst Omega and connected DVI, but It didn't work. It was just same.
What should I do now??
it works fine during the bootup, but it just goes black when entering os. and it works without amd drivers. i used ddu.
AMD Radeon R9 200 Series
Windows 7 (Service Pack 1) (64 bit)
Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
Did yuor tried an old AMD driver to test it out ?, because as you stated that it works during boot time, it seems to me it might be a driver or OS related issue. BTW, What is your manufacture ?