DSR breaks SLI scaling!

[Loque]

Actually they dont, they do the same, they render a higher resolution in the buffer then downscale the image to the native screen resolution or whatever the resolution the monitor is set at or it would not be called down scaling, You can not force a non 4k monitor to actually run in 4k.

nvidia's DSR downscales to the monitors native resolution yes, but conventional methods do not. I cannot render a game in 4K using the conventional downscaling method because my 1080p monitor is not capable of displaying a 4K image. This is why nvidia's DSR is superior, because it isn't actually forcing your monitor to run a resolution any higher than its native, unlike the conventional method.

 

[Loque]

That's not correct at all, Nvidia have confirmed that DSR works fine with SLI when using a normal monitor, when DSR doesn't work is if you're using SLI on a G-Sync monitor.

See here: http://i.imgur.com/9KokdYm.png

Well that does explain why I cant use DSR with my SLI setup (I do have a gsync monitor) but even when I completely disable gsync, I still cant enable DSR.

 

[old gamer]

ive had a dabble with dsr and seems to work in sli, not checked the gpu usage though, must reinstall hl2 to see what it looks like

 

[Final8y]

nvidia's DSR downscales to the monitors native resolution yes, but conventional methods do not. I cannot render a game in 4K using the conventional downscaling method because my 1080p monitor is not capable of displaying a 4K image.

All downscalers downscale to the monitors native resolution, that's what they do. your monitor not working at 4k downscaled to 1080p with another downscaler is nothing to do with other downscalers dont downscale, its a compatibility issue.
Hence in the name DownScaler, you can not downscale a 4k image to 4k, there is no point.

 

[Loque]

All downscalers downscale to the monitors native resolution, that's what they do. your monitor not working at downscaled 4k with another downscaler is nothing to do with it does not downscale, its a compatibility issue.

This is where you're misunderstanding though. It isn't downscaling to my monitors native resolution. It's forcing my monitor to display in 4K, which it cant do. DSR works the way you describe. manual "DSR" techniques where you have to setup custom resolutions so that your games can use them, do not work this way.

 

[Final8y]

This is where you're misunderstanding though. It isn't downscaling to my monitors native resolution. It's forcing my monitor to display in 4K, which it cant do. DSR works the way you describe. manual "DSR" techniques where you have to setup custom resolutions so that your games can use them, do not work this way.

Its seems you dont know what you are doing when it comes to other downscalers and that's where im going to leave it.

 

[Loque]

Its seems you dont know what you are doing when it comes to other downscalers and that's where im going to leave it.

OK.

 

[andybird123]

This is where you're misunderstanding though. It isn't downscaling to my monitors native resolution. It's forcing my monitor to display in 4K, which it cant do. DSR works the way you describe. manual "DSR" techniques where you have to setup custom resolutions so that your games can use them, do not work this way.

In nvidia control panel you can choose whether to allow the monitor to rescale or the GPU - when doing downscaling you are using the GPU to do the down scaling - hence the name DOWN scaling

if you actually tried to set the monitor to do the down scaling it would very much depend on whether the monitor scaler will accept a higher resolution or not, usually not

using CRU I can set create a 4K custom resolution (at 60hz), set my GPU to do the scaling and my 2560x1440 (144hz) monitor will display it, the GPU scales the image down to 2560x1440

finaly is correct in this

If I set monitor to scale in nvcp then my monitor just says out of range

 

[Loque]

In nvidia control panel you can choose whether to allow the monitor to rescale or the GPU - when doing downscaling you are using the GPU to do the down scaling - hence the name DOWN scaling

if you actually tried to set the monitor to do the down scaling it would very much depend on whether the monitor scaler will accept a higher resolution or not, usually not

using CRU I can set create a 4K custom resolution (at 60hz), set my GPU to do the scaling and my 2560x1440 (144hz) monitor will display it, the GPU scales the image down to 2560x1440

finaly is correct in this

If I set monitor to scale in nvcp then my monitor just says out of range

I wish that worked for me on my gsync monitor, but regardless if I set GPU or monitor scaling. I get test failed on any resolution higher than 1080p.

 

[Silent_Scone]

SLI scaling is fairly broken without DSR. Your best bet is to tweet their customer service account on Twitter. The GeForce forum attracts too much incompetence and you'll just get drowned out by daily shoppers.

 

[neoglow]

Is DSR not quite the same to normal downsampling methods as it uses a Gaussian blur which has an effect on the image quality and the performance?