S27B350 monitor flicker and blacks

[fakebun]

Hi guys

I'm using MSI Radeon 7700 (7790 I think, it was on sale couple months ago) and I'm using that one card with DVI onto a 24' samsung monitor and with HDMI into samsung S27B350 monitor

In windows it's recognized as generic PnP monitor for S27B350

My problem is that the power of S27B350 is on, but nothing shows. I turn off and on the monitor and it'll show the extended desktop for a little while and then turn black again.

Can someone help me please.

Thank you very much

 

[Ketchup]

If you run each display one at a time (in the same ports you are using now), do you see anything?

What does the rest of your system look like? (hint - specs)

If you have both monitors plugged in when you boot up the machine, does one of them show the post and Windows loading screen?

Also, does your motherboard/CPU have integrated graphics, and are they enabled?

 

[fakebun]

If I set S27B350 as main display it'll do the same

It's been a long time so I don't really remember my comp's specs. I'm using 1st gen i7-920 and Radeon 7770

MOBO doesn't not have integrated graphics.

During loading sometimes both shows post, sometimes it alternates

 

[Ketchup]

You may need to boot with the DVI plugged in only to get into Windows. Install drivers if you have not yet. Then plug in your HMDI and adjust accordingly.