I have a GX703HS and when I use an external display my framrate noticeably dips in games like cyberpunk vs when running directly from the laptop and I believe its because everytime I connect to one nvidia force switches to the optimus and I am unable to select GPU only. I read that the front most usb c display port was the only input that supported direct from GPU but even this seems to not work https://www.ultrabookreview.com/47929-asus-rog-zephyrus-s17-review/ .
I have also followed ASUS guide and the game i'm testing cyberpunk is set to use the GPU and does so correctly when not hooked up to an external display.
Any Ideas what I could me missing or if this review is innacurate? Anyone successfully connect externally with the display coming directly from GPU?
Good find. I think that might be a physical limitation of how the ports are wired.
I know this may seem obvious but make sure the external display is using the same mode (resolution, color depth, refresh) as the internal panel and make sure they are mirrored (not extended). Having the display extended or at a higher resolution could negatively impact performance. Other than that I don't think there's a lot you can do, unfortunately.
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