Is there any existing support in the Linux driver for custom frame limiting? I believe the Windows driver has supported it for a long time now, and setting frame limits just below Freesync/G-Sync limits would be very useful.
Unfortunately, no. For GL you can use libstrangle to achieve this, IDK if anything like that exists for Vulkan.
Yeah, I looked at libstrangle (I think it might have Vulkan support now?), but, it would be so much easier to just be able to go to the NV control panel (or set a var) and globally set one up like in their Windows driver. Hopefully NVidia will add support at some point to Linux, I guess. Anyone know if there is a feature request tracker or something?