Problem with HDMI output from video card

joehallifax · Aug 26, 2015

Hi, as the title says, I have recently bought my first gaming PC, with a AMD R9 270X GPU and I am having trouble getting a display signal from it to my TV, which I am using as a monitor.

When the card is disconnected, the PC boots as normal, I can access the BIOS menu and windows starts, with the display coming from the Mobo via a VGA cable.

The same happens with an HDMI cable from the Mobo, although I can't increase the resolution above 800x600.

When the card is connected to the Mobo, and to the TV via an HDMI cable, I can see the boot screen, but it isn't centered on the TV screen, and the background which is usually black, is somewhat fuzzy. I can't access the BIOS menu, and when windows should start, the screen is blank, although there is a signal.

I have already tried reinstalling the drivers for the video card, to no avail.

Any thoughts?

Dazinek · Aug 26, 2015

What is your PSU? Your PSU might not be able to power it. Thus why it cannot run properly.

Otherwise it may be a bad gpu.

Suztera · Aug 26, 2015

If you using the R9 270X, you should plug the monitor, in this case the TV, into the graphic card's display outputs not the motherboard to fully use the card. You may have to mess with the scaling option in AMD CCC.

joehallifax · Aug 26, 2015

Thats the problem, when the tv is plugged into the graphics cards output, I see the boot screen, although not centered and a bit fuzzy, and then the screen goes blank.

Suztera · Aug 26, 2015

joehallifax :

What is the pc hardware?

joehallifax · Aug 26, 2015

Cpu: Fx 6300
Gpu: r9 270x
Mobo: gigabyte 78LMT-USB3
8GB Ram
1TB HDD

I've only just installed windows 8.1, if that is of any relevance

Suztera · Aug 26, 2015

joehallifax :

Power supply?
What is the motherboard's revision? Do you know what BIOS version the motherboard is on?

joehallifax · Aug 26, 2015

Power supply is xfx pro series 550W 80+ bronze 120mm fan PSU, revision number is 6.0 and Bios version is F1d (I think)

I was leaning more towards a problem with the resolution of the TV and the output of the video card? Mainly because the VGA output from the mobo to the TV works fine.

Suztera · Aug 26, 2015

joehallifax :

If you are using a dedicated graphic card, you should not use the motherboard's display outputs else you will not be using your gpu.
You plug in all the pcie power slots on the R9 270X?
You could try an update to your motherboard BIOS and see if that will fix it. But in theory, it shouldn't be the fault.
http://www.gigabyte.com/products/product-page.aspx?pid=5195#bios
Can you try the R9 270X in another pc?

joehallifax · Aug 26, 2015

I know I shouldn't use the mobo's outputs, but I had to, as the HDMI output from the GPU isn't working as it should.

The GPU in itself seems to be powering up fine, the fans spin, all conectors and plugs are in etc.

I won't be able to try the card in another PC until next week, although, perhaps I'm being a bit naive, but I don't believe it is a fault coming from the GPU as it is brand new.

Suztera · Aug 26, 2015

joehallifax :

You could be getting a defective card or a defective HDMI port on the card.
If you want to use the onboard graphics for now, install the drivers for it and you should get be able to go higher than 800X600.

Search

Problem with HDMI output from video card

joehallifax

Reputable

Dazinek

Honorable

Suztera

Polypheme

joehallifax

Reputable

Suztera

Polypheme

joehallifax

Reputable

Suztera

Polypheme

joehallifax

Reputable

Suztera

Polypheme

joehallifax

Reputable

Suztera

Polypheme

TRENDING THREADS

Latest posts

Moderators online

Share this page