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Asus ATI HD7970 2560x1440

Last response: in Graphics & Displays
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October 16, 2012 5:23:20 AM

Hi guys,

I recently purchased a Asus ATI HD7970, replacing my GTX 580, which was having problems.

I am using a Dell U2711 monitor and with my GTX580, I was able to run it at 2560x1440.

My problem is that after installing the HD7970, there is now no option for 2560x1440, the highest resolution available is 1920x1080.

I am using the same cable as I was with my GTX 580, so I am struggling to work out what the problem is.

Does anyone have any advise?

Thanks,

-Nick
a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 5:28:39 AM

davienr said:
Hi guys,

I recently purchased a Asus ATI HD7970, replacing my GTX 580, which was having problems.

I am using a Dell U2711 monitor and with my GTX580, I was able to run it at 2560x1440.

My problem is that after installing the HD7970, there is now no option for 2560x1440, the highest resolution available is 1920x1080.

I am using the same cable as I was with my GTX 580, so I am struggling to work out what the problem is.

Does anyone have any advise?

Thanks,

-Nick


You have to use a Dual Link DVI cable or a Display Port cable. You cannot use HDMI or VGA
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October 16, 2012 5:30:48 AM

But the same cable was giving me 2560x1440 using my previous graphic card...Or is this only a requirement for this card?
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a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 5:34:29 AM

davienr said:
But the same cable was giving me 2560x1440 using my previous graphic card...Or is this only a requirement for this card?


'Some' HDMI cables and initiators (card hardware) can handle resolutions higher than 1920x1200 but some cannot. HDMI 1.3 and 1.4 should work at that resolution but 1.2 will not so it's not a sure thing. Given this fact, some cards or displays may limit the resolution on certain connection formats for quality assurance purposes. I know for a fact that my u3011 will not go above 1920x1200 on HDMI and I suspect that the same is true for either your u2711 or your 7970.

I have mine hooked up by Dual-Link DVI. DisplayPort will work as well, but DVI has less software issues.
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October 16, 2012 5:39:49 AM

I'm pretty sure your issue is simply not using EYEFINITY

Open up CCC, and select amd eyefinity multi display. Then select create group.
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a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 5:41:15 AM

painfulleap1 said:
I'm pretty sure your issue is simply not using EYEFINITY

Open up CCC, and select amd eyefinity multi display. Then select create group.


Eyefinity is only for running multiple displays which the OP hasn't indicated that he has.
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October 16, 2012 5:43:06 AM

ah, your right my bad I read too quickly.

My suggestion is check for possible driver updates for both the graphics card and the monitor. I'd also suggest trying a different cable. Even though the cable worked before it may not work with the new card.
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October 16, 2012 5:53:09 AM

Pinhedd said:
'Some' HDMI cables and initiators (card hardware) can handle resolutions higher than 1920x1200 but some cannot. HDMI 1.3 and 1.4 should work at that resolution but 1.2 will not so it's not a sure thing. Given this fact, some cards or displays may limit the resolution on certain connection formats for quality assurance purposes. I know for a fact that my u3011 will not go above 1920x1200 on HDMI and I suspect that the same is true for either your u2711 or your 7970.

I have mine hooked up by Dual-Link DVI. DisplayPort will work as well, but DVI has less software issues.


Righto, I bought a displayport cable today, so hopefully that solves the problem.
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a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 5:55:44 AM

davienr said:
Righto, I bought a displayport cable today, so hopefully that solves the problem.


It should. As a side node, many laptops have Dual-Link DVI ports that are only wired for single-link. Use Display Port on mobile devices whenever you can.

Also, newer AMD cards use miniDisplayPort so you will need to get a miniDisplayPort to DisplayPort cable, not a DisplayPort to DisplayPort cable.
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October 16, 2012 5:58:54 AM

Pinhedd said:
It should. As a side node, many laptops have Dual-Link DVI ports that are only wired for single-link. Use Display Port on mobile devices whenever you can.

Also, newer AMD cards use miniDisplayPort so you will need to get a miniDisplayPort to DisplayPort cable, not a DisplayPort to DisplayPort cable.

Yea, I dno, I'm fairly certain it uses normal DisplayPort, atleast from what I saw and from looking at the specs:

http://www.austin.net.au/pc-components/video-graphics-c...
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October 16, 2012 6:02:01 AM

Pinhedd said:
Oh cool, that has 4 full sized DisplayPort ports, no worries then.


Haha, phew, had me worried for a second there.
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a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 6:05:03 AM

davienr said:
Haha, phew, had me worried for a second there.


I'm surprised that it lacks an HDMI port, those are very useful for Home Theaters. I have a 50 foot HDMI cable leading from my PC to my receiver.
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October 16, 2012 6:08:16 AM

Pinhedd said:
I'm surprised that it lacks an HDMI port, those are very useful for Home Theaters. I have a 50 foot HDMI cable leading from my PC to my receiver.


Yea, I have my 50" LED hooked up to my PC via DVI.
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a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 6:11:13 AM

davienr said:
Yea, I have my 50" LED hooked up to my PC via DVI.


Do you use TOSLINK for audio then? HDMI is awesome because it can carry multichannel LPCM whereas TOSLINK can't.
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October 16, 2012 6:13:37 AM

Pinhedd said:
Do you use TOSLINK for audio then? HDMI is awesome because it can carry multichannel LPCM whereas TOSLINK can't.

Nah, I have a pretty weird setup when it comes to my audio.

I have my comp hooked up to a valve amp via 3.5mm cable, then the amp connected to my tower speakers.

For some reason TOSLINK was causing a lot of audio feedback.
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a c 120 U Graphics card
a b Ĉ ASUS
October 16, 2012 6:15:26 AM

davienr said:
Nah, I have a pretty weird setup when it comes to my audio.

I have my comp hooked up to a valve amp via 3.5mm cable, then the amp connected to my tower speakers.


ah cool. I have headphones for my PC seat and 7.1 surround for my home theater which is a few feet away
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October 16, 2012 6:17:25 AM

Pinhedd said:
ah cool. I have headphones for my PC seat and 7.1 surround for my home theater which is a few feet away


Yea, I have a setup for both speakers and headphones connected to my pc, so when I am on skype or something I switch to headphones, I use a Astro Mixamp Pro connected to my PC via TOSLink.
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