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Why 4K DSR works at 144Hz in some games but doesn't in others?!

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I was playing Alien Breed: Impact with DSR set to 4K and it was working fine at 144Hz on a 144Hz display. However, Alien Breed 2: Assault, refuses to work at 144Hz and instead runs at 60Hz with DSR which causes horrible image tearing and makes my eyes hurt. Why is this happening? Both games run Unreal Engine 3 and are essentially the exact same thing, just different missions.

Why can't DSR run at whatever frequency actual monitor is running regardless of the game? It's so annyoing to have high end 144Hz monitor and I can't use 4K DSR in game because it's a 144Hz monitor. Running anything at lower Hz drives me crazy, even desktop feels weird and I can't stand it, let alone games where it always introduces image tearing for some reason.

ForceWare 358.50
ASUS Strix GTX 980
ASUS VG248QE 144Hz 1ms

Anyone has any idea how to figure out why this is happening? I want all games to run at 144Hz, because that's the kind of screen I actually have. It shouldn't matter to what resolution DSR upscales the image in the framebuffer.
 
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I was playing Alien Breed: Impact with DSR set to 4K and it was working fine at 144Hz on a 144Hz display. However, Alien Breed 2: Assault, refuses to work at 144Hz and instead runs at 60Hz with DSR which causes horrible image tearing and makes my eyes hurt. Why is this happening? Both games run Unreal Engine 3 and are essentially the exact same thing, just different missions.

Why can't DSR run at whatever frequency actual monitor is running regardless of the game? It's so annyoing to have high end 144Hz monitor and I can't use 4K DSR in game because it's a 144Hz monitor. Running anything at lower Hz drives me crazy, even desktop feels weird and I can't stand it, let alone games where it always introduces image tearing for some reason.

ForceWare 358.50
ASUS Strix GTX 980
ASUS VG248QE 144Hz 1ms

Anyone has any idea how to figure out why this is happening? I want all games to run at 144Hz, because that's the kind of screen I actually have. It shouldn't matter to what resolution DSR upscales the image in the framebuffer.
Some games are forcibly limited to 60hz or even in some cases 30hz in the config. I don't know if that specific game has it but there are many I have run into like that on my machine that require editing to allow for beyond 60hz.
 
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But if I run them at 1080p they ALL run at 144Hz without exception. Few drivers back and Windows 8.1 and ANYTHING I've run at 4K using DSR was forced down to stupid 60Hz. That's why I'm wondering what the hell is going on.
 

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turn vsync of in that game, or maybe force it off though the NV panel. As GR already said some games are like that, maybe you can find a config option in the game files as UE normally has those and are changeable.
 
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i used to love them on the amiga :D

sounds like driver issues dude.

maybe in another couple of month they will have fixed it for both?
 
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I hope so. DSR is quite useful if you want to anti-alias edges without affecting HUD. Assuming games know how to scale them. Which is funny. Games like Alien Breed and Worms Revolution scale HUD correctly, but a lot of newer games don't. But playing at 60Hz on a 144Hz screen makes it really heavy for my eyes. Seems like 144Hz screens, at least my in particular don't handle lower Hz too well. Or I just got so spoiled by 144Hz that I intsnatly notice difference with 60Hz. 60Hz just feels awkward and then I check monitor settings to see what Hz rate it's running at (that's how I've noticed some game run at 60Hz instead of 144Hz).

Until NVIDIA fixes that, I'm forced to use FXAA in games that only run at 60Hz when using 4K DSR.
 
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Go back to 355.98, (use custom install/ clean install) ... You may find that 355.98 is faster.


If you turn all of the graphics settings in GTAV to EVERYTHING LOW you can get the DSR 4k on 1080p to run at 120hz . of course, only on a single card. I wish DSR would run on SLI, but i have come to terms with that fact, and purchased a 4K monitor. (bought a1440p acer 270hk, but DSR does not look better. And my 1080p monitor had too much banding, so the 280hk 4k monitor was purchased)

But real settings, require real grunt. for example on GTAV at everything ultra/VH with grass VH , fxaa, advanced settings on, 70% sliders i can get 60Hz for alot of the game with dips to 50. using 355.98... using 358.50 i only get 75% or 45fps...

if you use "console" settings... (See eurogamer/digital foundary review of GTAV) for the settings, you get 120hz in most parts.
 
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Ok, I get it that GTA5 may limit Hz because the game eats so much framebuffer you may have problems using 4K DSR. But between Alien Breed 1 and Alien Breed 2, nearly zero difference in graphics, yet 144Hz work sin one but not in other.
 

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Could you please clarify: does the game still run at only 60Hz without DSR or do you get 144Hz out of it?

For UE games, there's usually an ini file somewhere that you can edit. It's possible that this is capping the framerate under certain conditions so editing this file may remove it. Try googling for it.

Note that tearing will always be present if you leave vsync off with a fixed refresh monitor. All that changes is how much you see it, depending on the interplay between the monitor's refresh rate and the instantaneous framerate from the graphics card. Having a 60/144 combination would look terrible, as you've noticed. Just turn vsync on and you won't see any more tearing.

I've got two 144Hz monitors I can confirm that it's awesome. :cool:
 
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No. The tearing happens SOLELY for using 60Hz on an otherwise 144Hz. If I use 1920x1080 (native), but at 60Hz instead of 144Hz, the tearing will be absolutely horrible.
 

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You haven't answered my question "Could you please clarify: does the game still run at only 60Hz without DSR or do you get 144Hz out of it?" I need to know if I'm going to be able to help you.

You're wrong about the tearing happening only with a 60/144Hz mix. As I said, how much you see it depends on various factors. Just Google it if you don't believe me. Removing tearing is one of the reasons for having adaptive sync, for example.
 
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Oh, that. Yeah, if I run the game without DSR at native screen resolution (1080p) I indeed get 144Hz in the same game. As soon as I enable DSR, even at smaller upscale factors, locked to 60Hz. But not in all games. That's why I don't get it. At 1080p I have 144Hz in ALL games without exception. Even most really old ones support 144Hz. But same games with DSR enabled, 60Hz. But only in certain games. That's why I'm confused...
 

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I suspect that it's not a driver or DSR issue, but a game issue where it doesn't work properly at 4K. If I had a 4K monitor I'd be happy to test this for you.

@newtekie1 I know you've got a 4K monitor, so do you also have Alien Breed 2: Assault to try at 4K for rejzor?
 
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I have a 4k monitor, and alien breed 2:assult is only 11 dollars on steam, and steam has have a return policy of under 2 hours of use...

where in the game should i should i test it?...



...and i have a 1440p, 1080p and 4k monitor (check system specs)


I know DSR (4x native setting) works on a 1080p monitor with GTAV and i get the same frame rate on GTAV in 4K.

And also works on a 1440p (2.25 native setting) ... Does not look as well at 4K on a 1440p. ( disappointing because 4k DSR looks so great on a 1080p monitor)
 
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I suspect that it's not a driver or DSR issue, but a game issue where it doesn't work properly at 4K. If I had a 4K monitor I'd be happy to test this for you.

@newtekie1 I know you've got a 4K monitor, so do you also have Alien Breed 2: Assault to try at 4K for rejzor?

but it is doing the res, just only at 60hz.

oldschool workaround that might work is renaming the exe of the one not working to the one that is.
 
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are there any other games that exhibit this problem?...
 

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Yeah, but he'd need a 144Hz 4K monitor. And I don't think any even exists currently...
Oh yeah, forgot about that. :ohwell:

Try fiddling with the ini file perhaps and see what you can find. It might be a good idea to compare the ini file of both games to see if it's just a simple configuration issue that's doing it.
 

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Yeah, but he'd need a 144Hz 4K monitor. And I don't think any even exists currently...
I've just realized it would still be useful, because with vsync off, it doesn't matter what rate the monitor is refreshing at. I agree having a 144Hz refresh at 4K to keep everything the same would be that little bit better though.
 
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I bought alien breed 2: assault...

Playing/looking only at the freemode: prologue start screen (on windows 10 pro)

On a 4k monitor... Looks good
On a 1440p monitor DSR 2.25 ratio ... (0% smoothness) (Refresh rate 144Hz) looks good
On a 1080p monitor DSR 4 ratio ... (0% smoothness) (Refresh rate 120Hz) looks good
On a 1080p monitor 120hz refresh (3d settings restored (no DSR)


only problem is that the game locks the rate to 62Hz vsync on or off. (monitor resolution does not matter. NVIDIA 3d settings override vsync off does not fix it)

So switched to windows 7... Same thing framerate fixed at 62.

So looked up " how to change FPS cap" and found that you can change this cap... (found in wiki.unrealengine.com/How_to_Change_FPS_Cap....

change
MaxSmoothFrameRate to 120 ... From 62.

In BaseEngine.ini (For steam it is .../SteamApps/Common/Alien Breed 2 Assault /Engine/Config/BaseEngine.ini

Yes when that is set to 120fps, DSR 4k on 1080p works at 120Hz. And looks amazing.
Make sure that DSR - Smoothness is set at 0%... Looks better IMO.

same thing at 1080p... Looks good.

On windows 10 same thing... Looks good. You need to change the MaxSmoothFrameRate To 120Hz to solve your problems IMO. because i do not see any problems.

And i also tried it on my 144hz 1440p at 2.25x DSR. same thing... Looks good. 144Hz DSR goodness


using alien Breed 2 assault build 118.6, at nvidia 355.98

TL;DR, adjusting MaxSmoothFrameRate to 120 or 144 (your monitor refresh rate)
changing Vsync in game requires you restart the game for it to have an effect.
(and vsync off, gives you the frame rate of MaxSmoothFrameRate)
And windows 10 is the same as windows 7 for this game.
 
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Ok, I've tried that and i didn't work. It was still locked at 60Hz. However, I've done some digging through same INI file and found this:

[WinDrv.WindowsClient]
AudioDeviceClass=ALAudio.ALAudioDevice
MinAllowableResolutionX=0
MinAllowableResolutionY=0
MaxAllowableResolutionX=0
MaxAllowableResolutionY=0
MinAllowableRefreshRate=0
MaxAllowableRefreshRate=0


I've changed both values to 144. Ran the game and voila, 4K DSR at 144Hz. Smooth as butter, zero image tearing and super easy on the eyes. You were right guys, it was indeed the game engine that was fucked up. I wonder why they fiddled with it in the second game but didn't in the first which is older and one would assume latest games would be more up to date with the 4K and high hertz trends and so on. It looks like I'll have to fiddle with games again just like I already have to for the damn FOV and bunch of other stuff...

Thx for the help, I guess I'll have to write this down on my blog as well...
 

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Oh this is such bullshit. And now, for some moronic reason, stuck at 60Hz again. I've noticed that it automatically switched to 1920x1080 the other time, didn't pay attention to the size of the cursor which is smaller at 4K. But either way, those settings still have 144 values and the game fucking runs at 60Hz again. This is so damn lame.
 
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Are your settings in the file BaseEngine.ini as follows? :

( i just cut-and-paste the whole section of [Engine.GameEngine] )

Code:
[Engine.GameEngine]
bSmoothFrameRate=TRUE
MinSmoothedFrameRate=22
MaxSmoothedFrameRate=144   ;originally 62.
MaxDeltaTime=0


in my game the [WinDrv.WindowsClient] section is as follows:
(i did not modify it.)

Code:
[Engine.Client]
DisplayGamma=2.2
MinDesiredFrameRate=35.000000
InitialButtonRepeatDelay=0.2
ButtonRepeatDelay=0.1


[WinDrv.WindowsClient]
AudioDeviceClass=ALAudio.ALAudioDevice
MinAllowableResolutionX=0
MinAllowableResolutionY=0
MaxAllowableResolutionX=0
MaxAllowableResolutionY=0
MinAllowableRefreshRate=0
MaxAllowableRefreshRate=0
ParanoidDeviceLostChecking=1
AllowJoystickInput=1
 
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