Can't get new display to run @ 144hz

[Xzibit]

This thread kills me. OP asked about an issue with a monitor and an older card, first thing up someone tries to sell him not ONE but TWO old cards ( that when in SLI consume more power, and are only slightly faster than a 480 if at all) that would also require a different and more expensive monitor, someone else shows up and tells OP to trade the monitor back for a more expensive monitor and a slightly higher priced competitive card setup as "electricity costs money". OP states to have issues fixed and is happy for now and wants to purchase a 480 (in the US they can be found as cheap as $179) and then gets told how a 1060 is still better (by like 5%) or that OP should spend more to get a 1070, because bettar.... and still yet no one has asked what OP is playing at what settings.

http://www.newegg.com/global/uk/Product/Product.aspx?Item=N82E16814202225

http://www.newegg.com/global/uk/Product/Product.aspx?Item=N82E16814487263

Tit for tat on price and performance.

Just read it now and it goes to show how some people are more interested in helping themselves or their viewpoints rather then just helping.

I'm sure if it went on longer somone would have recommended a new Tesla with Nvidia drive PX2 for a solution to his monitor

 

[qubit]

I don't think it's that because my HD7950 was perfectly happy with my ASUS 144Hz monitor. But only with DisplayPort. With Dual Link DVI it was behaving funky and with normal DVI it just didn't work at 144Hz.

Yeah, that's right. The OP said that using a displayport cable fixed it and he's now got 144Hz refresh. That's some gremlin with its design if it can't manage it over DVI and AMD have fixed this in later cards.

 

[Xzibit]

Yeah, that's right. The OP said that using a displayport cable fixed it and he's now got 144Hz refresh. That's some gremlin with its design if it can't manage it over DVI and AMD have fixed this in later cards.

If you download the manual to his monitor you get this.

20 QHD 2560 x 1440 100HZ FOR HDMI2.0/DP
21 QHD 2560 x 1440 120HZ FOR HDMI2.0/DP
22 QHD 2560 x 1440 144HZ FOR HDMI2.0/DP

DVI was never an option. He would have been stuck at 60hz. Same with the G-Sync variant (DP only) of that monitor.

 

[qubit]

If you download the manual to his monitor you get this.

20 QHD 2560 x 1440 100HZ FOR HDMI2.0/DP
21 QHD 2560 x 1440 120HZ FOR HDMI2.0/DP
22 QHD 2560 x 1440 144HZ FOR HDMI2.0/DP

DVI was never an option. He would have been stuck at 60hz. Same with the G-Sync variant (DP only) of that monitor.

That doesn't say what DVI is capable of, so I don't see how it wasn't an option?

 

[Xzibit]

That doesn't say what DVI is capable of, so I don't see how it wasn't an option?

You mean the FOR isn't convincing you. Feel free to contact Acer about their manual.

 

[qubit]

You mean the FOR isn't convincing you. Feel free to contact Acer about their manual.

No. It doesn't matter what the HDMI port can do, it's what the DVI port can do and your clip doesn't say. What's so hard to understand?

You've got the manual, so why don't you look up the section on the DVI port, what refresh it supports and post it here?

 

[Xzibit]

No. It doesn't matter what the HDMI port can do, it's what the DVI port can do and your clip doesn't say. What's so hard to understand?

You've got the manual, so why don't you look up the section on the DVI port and what refresh it supports post it here?

Wait you haven't seen it and you continue to argue.

 

[qubit]

Wait you haven't seen it and you continue to argue.

Just provide the evidence instead of dodging the question...

It's quite obvious that the DVI port can support 144Hz even without checking the manual. Prove me wrong by quoting that bit of the manual. Simple, huh?

 

[Xzibit]

Just provide the evidence instead of dodging the question...

Look it up yourself. You obviously know how to use the internet.

It would have been nice if you looked it up before you started reply'n in this thread tho. Heck, you were the first person to respond and you still haven't looked it up. If you would have you could have pointed out the issue and thread solved in under 4 post.

 

[qubit]

Look it up yourself. You obviously know how to use the internet.

It would have been nice if you looked it up before you started reply'n in this thread tho. Heck, you were the first person to respond and you still haven't looked it up. If you would have you could have pointed out the issue and thread solved in under 4 post.

Fact is a 144Hz monitor will support 144Hz refresh through a dual link DVI port - I have two such models that are exactly like this. If this Acer monitor doesn't, then it's frankly weird and I doubt that very much.

You refuse to prove your point so you lose the argument. Either show me or quit bickering.

 

[Xzibit]

Fact is a 144Hz monitor will support 144Hz refresh through a dual link DVI port - I have two such models that are exactly like this. If this Acer monitor doesn't, then it's frankly weird and I doubt that very much.

You refuse to prove your point so you lose the argument. Either show me or quit bickering.

So your method of proof is two totally unrelated monitors. WOW just WOW and you still refuse to look at the manual. I'm saying I take Acers word for it because it doesnt matter what other monitors can do or what cables can supply. It matters what the monitor in question is capable of. You on the other hand seem to relish the bickering, continue...

 

[qubit]

So your method of proof is two totally unrelated monitors. WOW just WOW and you still refuse to look at the manual. I'm saying I take Acers word for it. You on the other hand seem to relish the bickering, continue...

Whatever.

 

[FordGT90Concept]

There's so many things going on here.

1) Your card has two DVI ports but only one of them is dual-link.

Dual-link DVI with HDCP
-Max resolution: 2560x1600
Singlel-link DVI with HDCP
-Max resolution: 1920x1200

2) DVI dual-link is not capable of 1440p at 144 Hz. It could maybe do at most 85 Hz.

WQXGA (2,560 × 1,600) @ 60 Hz with CVT-RB blanking (2 × 135 MHz)

3) You need a DisplayPort cable. Your 7970 supports DisplayPort 1.2 so just make sure to get a DisplayPort 1.2 compatible cable and you should be good to go.

 

[qubit]

@Xzibit

Look, the point that you've been missing (and I hoped the penny would drop) is that you tried to negate what I was saying by putting up some info that didn't actually say one way or the other. Sure, I could dig up the manual, but, it's up to you to look up that info and show it to me since you made the claim instead of telling to dig up the manual and check myself. Now, if you'd just attached the manual's PDF to this thread I'd have taken a look.

I see that @FordGT90Concept has put up a nice response, the kind I was hoping you would do and is all that it would have taken. Now, while it looks like 144Hz at 1440p isn't achievable according to his info, surely the monitor should still manage it at 1080p? The OP said that he couldn't get 144Hz even at 1080p either, which is why I wondered if it was a graphics card limitation. That's all there's to it. No need for drama.

 

[FordGT90Concept]

Then it was plugged into the single-link port on the card. Single link can't do much more than 85 Hz at 1080p (spec is 60 Hz at 1920x1200). You can usually tell which port is single-link and which is dual-link by looking at the DVI logo on the card's bracket.

If memory serves, the 7970 is basically a R9 280 and it will struggle with 1440p gaming. RX 480 will struggle a little less.

 

[Xzibit]

@Xzibit

Look, the point that you've been missing (and I hoped the penny would drop) is that you tried to negate what I was saying by putting up some info that didn't actually say one way or the other. Sure, I could dig up the manual, but, it's up to you to look up that info and show it to me since you made the claim instead of telling to dig up the manual and check myself. Now, if you'd just attached the manual's PDF to this thread I'd have taken a look.

I see that @FordGT90Concept has put up a nice response, the kind I was hoping you would do and is all that it would have taken. Now, while it looks like 144Hz at 1440p isn't achievable according to his info, surely the monitor should still manage it at 1080p? The OP said that he couldn't get 144Hz even at 1080p either, which is why I wondered if it was a graphics card limitation. That's all there's to it. No need for drama.

All that has already been answered. I'll bold it.

OP

Hi

I've just got an acer xf270hu monitor and I can't get it to run at 144hz. I'm using the DVI-D dual link cable that came with it, and I'm unable to select anything over 60hz even at 1080p.

I know I need a displayport cable to run @ 1440p 144hz (which I'll be getting soon)

I'm running a Powercolor 7970 V3 so what gives?

Then

Well the DisplayPort Cable arrived today and I'm happy to say that it instantly switched to 144hz

Ordered MSI 8GB RX480 Gaming for freesync, can't wait till it arrives, first major upgrade in 4 years!

People wanted DVI to work @144hz on this monitor. The Timing table in the manual corresponds with what he was experiencing. DVI is the least capable input while the 3 other can exceed 60hz as noted by the Timing Table in the manual.

 

[qubit]

Then it was plugged into the single-link port on the card. Single link can't do much more than 85 Hz at 1080p (spec is 60 Hz at 1920x1200). You can usually tell which port is single-link and which is dual-link by looking at the DVI logo on the card's bracket.

If memory serves, the 7970 is basically a R9 280 and it will struggle with 1440p gaming. RX 480 will struggle a little less.

Yeah, that's certainly a possibility - very likely I reckon.

@oli_ramsay Are you up for trying the other DVI port? I'm curious to see if you can get 144Hz at 1080p out of it and what refresh you get at 1440p.

@Xzibit You missed the point about the other DVI port being capable of it. Woulda been nice if you could just attach that manual...

 

[Xzibit]

Yeah, that's certainly a possibility - very likely I reckon.

@oli_ramsay Are you up for trying the other DVI port? I'm curious to see if you can get 144Hz at 1080p out of it and what refresh you get at 1440p.

@Xzibit You missed the point about the other DVI port being capable of it. Woulda been nice if you could just attach that manual...

There is only one.

1 DVI
1 HDMI MHL
1 HDMI 2.0
1 DP

It doesn't matter what the GPU sends or what the cable can transfer if the T-Con on the monitor is locked to 60hz for 1440p on DVI.

 

[qubit]

There is only one.

1 DVI
1 HDMI MHL
1 HDMI 2.0
1 DP

Ok, then either that card can't manage 144Hz 1080p over DVI or the monitor is some kind of freak. Attach that manual and I'll take a look at it. I find it quite telling that you've ignored what I said about providing evidence to back up your claim and also continue to refuse to attach the monitor manual here.

 

[FordGT90Concept]

Usually when there's only one DVI port with two HDMI, it's a single-link DVI because one HDMI is tied directly to it and all the bandwidth is reserved for the second HDMI, in this case, the one at 2.0 spec.

 

[qubit]

Usually when there's only one DVI port with two HDMI, it's a single-link DVI because one HDMI is tied directly to it and all the bandwidth is reserved for the second HDMI, in this case, the one at 2.0 spec.

Cheers Ford. Mystery solved. I knew it had to be the card one way or the other so didn't have to look at the monitor manual. @Xzibit it's ok, you no longer have to attach that manual, lol.
Thanks for the technical explanation. Appreciate it.

 

[Xzibit]

Cheers Ford. Mystery solved. I knew it had to be the card one way or the other so didn't have to look at the monitor manual. @Xzibit it's ok, you no longer have to attach that manual, lol.
Thanks for the technical explanation. Appreciate it.

Your funny. Those were the monitors connections. You would have known that if you looked at the manual. I'm glad your at peace now.

 

[qubit]

Your funny. Those were the monitors connections. You would have known that if you looked at the manual. I'm glad your at peace now.

What are you talking about? I said it was the card the whole time, from my very first post on this thread, so I was spot on while you were banging on about the monitor. The evidence is all over this thread, you can't deny it. It's obvious why you refused to show the relevent bit in the Acer manual: because you knew it didn't support your argument. I knew that too. Remember, you make a claim, you prove it, you don't try to shove it onto the other guy to prove you right. Simple.

I ripped your argument to shreds my friend and yet you're still in denial! Amazing.

Here's my first post. See how I was spot on with it being card limitation? Do you see it now, finally?

You've got a 7970 which is quite old. I wonder if that's the limitation?

Just remember this thread for next time before you try to criticize me: get your facts right.

 

[Xzibit]

What are you talking about? I said it was the card the whole time, from my very first post on this thread, so I was spot on while you were banging on about the monitor. The evidence is all over this thread, you can't deny it. It's obvious why you refused to show the relevent bit in the Acer manual: because you knew it didn't support your argument. I knew that too. Remember, you make a claim, you prove it, you don't try to shove it onto the other guy to prove you right. Simple.

I ripped your argument to shreds my friend and yet you're still in denial! Amazing.

Here's my first post. See how I was spot on with it being card limitation? Do you see it now, finally?

Just remember this thread for next time before you try to criticize me: get your facts right.

You mean like this

[0473_Digital.AddReg] DVI
HKR,"MODES\2560,1440",Mode1,,"24.0-99.0,50.0-75.0,+,+" TT notes 75hz is for 1024 max
HKR,,MaxResolution,,"2560,1440" TT notes 60hz
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

[0473_HDMI.AddReg] HDMI 2.0
HKR,"MODES\2560,1440",Mode1,,"24.0-222.0,23.0-144.0,+,+"
HKR,,MaxResolution,,"2560,1440"
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

[0473_HDMI2.AddReg] HDMI MHL
HKR,"MODES\2560,1440",Mode1,,"24.0-138.0,23.0-120.0,+,+"
HKR,,MaxResolution,,"2560,1440"
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

[0473_DP.AddReg] DisplayPort
HKR,"MODES\2560,1440",Mode1,,"222.0-222.0,40.0-144.0,+,+"
HKR,,MaxResolution,,"2560,1440"
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

The 7970 can exceed the monitors DVI capability. Wouldn't matter if you stuck a GTX 1080 its not going over what DVI can provide let alone what your limited by the monitor itself.

By all means keep blaming the card if it makes you feel better.

 

[qubit]

You mean like this

[0473_Digital.AddReg] DVI
HKR,"MODES\2560,1440",Mode1,,"24.0-99.0,50.0-75.0,+,+" TT notes 75hz is for 1024 max
HKR,,MaxResolution,,"2560,1440" TT notes 60hz
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

[0473_HDMI.AddReg] HDMI 2.0
HKR,"MODES\2560,1440",Mode1,,"24.0-222.0,23.0-144.0,+,+"
HKR,,MaxResolution,,"2560,1440"
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

[0473_HDMI2.AddReg] HDMI MHL
HKR,"MODES\2560,1440",Mode1,,"24.0-138.0,23.0-120.0,+,+"
HKR,,MaxResolution,,"2560,1440"
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

[0473_DP.AddReg] DisplayPort
HKR,"MODES\2560,1440",Mode1,,"222.0-222.0,40.0-144.0,+,+"
HKR,,MaxResolution,,"2560,1440"
HKR,,DPMS,,1
HKR,,ICMProfile,0,"Acer XF270HU.icm"

The 7970 can exceed the monitors DVI capability. Wouldn't matter if you stuck a GTX 1080 its not going over what DVI can provide let alone what your limited by the monitor itself.

By all means keep blaming the card if it makes you feel better.

This is getting tiresome and you're going round in circles after losing the argument, but here goes one more time.

First of all, that's not from the monitor manual, is it? Where did you get it from? Not saying it's wrong, just wondering where it's from.

Also, it doesn't prove that the monitor can't do 144Hz 1080p on the DVI port, just that it tops out at 75Hz for 1440p on the DVI port.

Also, Ford pointed out that the refresh rate on the DVI port is limited on the 7970 so can't reach 144Hz at 1080p which you seem to have conveniently missed, even though I flagged you in my post where I quoted him. So no, it can't exceed the monitor's capability using that port:

Then it was plugged into the single-link port on the card. Single link can't do much more than 85 Hz at 1080p (spec is 60 Hz at 1920x1200). You can usually tell which port is single-link and which is dual-link by looking at the DVI logo on the card's bracket.

Again, I suspected a limitation on the graphics card from the very first post and I was right. I later said that this was improved on in later AMD cards. This seems to be what's sparked the whole thing off with you, but I don't understand why you have such a problem with me being right about this point.

The evidence is all there, so admit you were wrong and move on for fuck's sake.