Question Dual-GPU setup for lossless scaling issue.

[Anon3245]

Hello, so I have an RTX 4060 as my main GPU and an RX 570 as my secondary GPU. I have the HDMI connected to the AMD GPU so I can run LSFG through it, and I render the game through the Nvidia GPU. It works as expected but some games refuse to run on the Nvidia GPU even after specifying GPU selection in Windows settings, and in Nvidia control panel.

The only "workaround" I found is connecting the HDMI back to the Nvidia GPU and disabling the AMD GPU through device manager but that defeats the whole purpose of LSFG. And constantly plugging and unplugging the HDMI back and forth based on what game I decide to play is incredibly inconvienient.

Any way to hard force these games to a specific GPU? Since they keep ignoring Windows and Nvidia control panel settings for some reason.

 

[NanoSuit3]

Depending on what Windows your using you should be able to assign games to which GPU your using through the Graphics Setting in Windows Settings itself. This is very essential to laptops also as some use Nvidia Optimus to favor Energy Efficiency over Performance. Only difference your using EMA or Explicit Multi-Adapter which is basically what your doing. 2 different cards running in tandem. Also I've tried it too but with 2 different cards of the same name but never ran into any problems. I will however advise that you should orient them in such ways of how efficient they are too so you don't waste any performance as well...................................food for thought...........................Oh I also forgot to mention too is if that method I suggested doesn't work then try plugging BOTH GPUs into the same display and just switch between them or something.................................if you want more context on what I'm also talking about too I got the EMA idea from here:

View: https://www.youtube.com/watch?v=uqcfg5-S15M&t=22s
& here:

View: https://www.youtube.com/watch?v=UQ1rKNdFlYQ

 

[Anon3245]

Depending on what Windows your using you should be able to assign games to which GPU your using through the Graphics Setting in Windows Settings itself. This is very essential to laptops also as some use Nvidia Optimus to favor Energy Efficiency over Performance. Only difference your using EMA or Explicit Multi-Adapter which is basically what your doing. 2 different cards running in tandem. Also I've tried it too but with 2 different cards of the same name but never ran into any problems. I will however advise that you should orient them in such ways of how efficient they are too so you don't waste any performance as well...................................food for thought...........................Oh I also forgot to mention too is if that method I suggested doesn't work then try plugging BOTH GPUs into the same display and just switch between them or something.................................if you want more context on what I'm also talking about too I got the EMA idea from here:

View: https://www.youtube.com/watch?v=uqcfg5-S15M&t=22s
& here:

View: https://www.youtube.com/watch?v=UQ1rKNdFlYQ

I'm not trying to run EMA. What I'm doing is rendering the game on my main GPU (RTX 4060) and then Frame generating with the secondary GPU (RX 570) through the Lossless Scaling program. The idea behind this is since frame generation on one GPU splits performance on said GPU so the base native framerate decreases since the GPU is trying to save resources for frame generation in the hopes of generating back those frames and exceeding the initial native framerate. This is very inefficient in theory and causes a lot of input latency hence why frame generation sucks on low to mid-range hardware.

This is where Lossless Scaling comes in. You natively run a game on one GPU and frame generate with the other which preserves the base native frames, generates more AI frames since I'm dedicating a whole GPU to the frame generation process and decreases input latency.

My problem is some games refuse to run on the RTX 4060 and default to the RX 570 even after assigning the RTX 4060 to said game through windows settings.

My monitor has one HDMI port so I don't think I can connect both GPUs unless I find a spare DVI or VGA cable.

View: https://youtu.be/gH359ZNxvNk?si=9ChS_Oxm-acAR0Rk

View: https://youtu.be/JyfKYU_mTLA?si=U8RDUtTAx45efTWL

View: https://youtu.be/PFebYAW6YsM?si=Th7oiGuXWmmJnWy9




^ Videos for reference to what I am doing.

 

[Anon3245]

Hello so I am running my RTX 4060 as my main GPU and RX 570 as my secondary. For LSFG to work I have to connect the HDMI to the secondary GPU (RX 570) and force games to run on the main GPU (RTX 4060) through Windows settings by specifying preferred GPU (System > Display > Graphics). Most games work fine, but some games ignore the specified GPU in WIndows settings and default to whichever GPU the HDMI cable is connected to.

Is there any way to force these games to render on a specified GPU? I tried to do it through each GPU's settings panel too but to no avail.

View: https://youtu.be/gH359ZNxvNk?si=ua_WU3EOeTDzwPWc


Reference video to the LSFG setup ^

 

[COLGeek]

Back in January, there were several references to this topic. Have you looked at any of those?

News - Offloading Lossless Scaling Frame-Gen to secondary GPU eliminates overhead

Should you have the appropriate hardware configuration, a YouTuber finds a logical method for getting a Lossless Scaling Frame Gen without performance loss in any game. Offloading Lossless Scaling Frame-Gen to secondary GPU eliminates overhead : Read more

forums.tomshardware.com

News - Lossless Scaling 3 update touts greatly improved latency and performance — Universal Frame Gen tool boasts 24% reduced latency

Lossless Scaling, a universal Frame Gen solution, gets a major update. Lossless Scaling 3 update touts greatly improved latency and performance — Universal Frame Gen tool boasts 24% reduced latency : Read more

forums.tomshardware.com

One thread calls out a Discord channel as a source to work through these matters.

 

[Anon3245]

Back in January, there were several references to this topic. Have you looked at any of those?

News - Offloading Lossless Scaling Frame-Gen to secondary GPU eliminates overhead

Should you have the appropriate hardware configuration, a YouTuber finds a logical method for getting a Lossless Scaling Frame Gen without performance loss in any game. Offloading Lossless Scaling Frame-Gen to secondary GPU eliminates overhead : Read more

forums.tomshardware.com

News - Lossless Scaling 3 update touts greatly improved latency and performance — Universal Frame Gen tool boasts 24% reduced latency

Lossless Scaling, a universal Frame Gen solution, gets a major update. Lossless Scaling 3 update touts greatly improved latency and performance — Universal Frame Gen tool boasts 24% reduced latency : Read more

forums.tomshardware.com

One thread calls out a Discord channel as a source to work through these matters.

No, I'll check it out. Thank you