Blur Busters Forums

Same screen here. Also this issue, but seldom during very low fps situations outside of gsync range. I once read a post by Chief here that explained the issue occurs due to brightness differences or such, I cannot reproduce. I would not invest any time trying to fix.

Tested some Vulkan games, e.g. Doom 2016, with VSYNC On (in-game off), NULL Ultra. There it does not seem to work and the game FPS hits the monitor refresh rate just like before, resulting in ~1 FPS of queuing latency.

Another observation: since the NVIDIA Ultra Low Latency (NULL) feature was added, the FPS limiter in NVIDIA's driver, set through NVIDIA Profile Inspector, is also low latency, that is, sub-frametime latencies measured by PresentMon, similar to RTSS. You only set the FPS limit and let the "Frame Rat...

In some testing I did it seems that putting NULL to "Ultra" and Vsync to "On" automatically caps games to below the refresh rate of the monitor (97.3 FPS @ 100Hz gsync screen). With some monitoring using PresentMon, it also seems to have the same latency characteristics as previously capping to 97 F...

Longshot: for me a cause of microstutter (in games) is having the Balanced or Power Saving power profiles enabled. Did you rule that out by forcing Prefer High Performance?

Did you connect your friends monitor to your PC, or did you run on his/her PC? If the latter, do you have the same GPUs? Same settings in whatever application you were running? In particular frame rate limiting and render ahead settings? Causes of lag measured by PresentMon are GPU render time, rend...

crossjeremiah wrote:I combined rtss and nvidia low latency ultra mode on vulkan. And in presentmon it showed 0.05ms . That's the lowest I've ever seen and it stays constant.

The new ultra low latency mode is only for DirectX 9 and 11, according to Nvidia’s description.

I believe (from scanning the source code) that PresentMon does not only measure time elapsed within a Present() call, but also until GPU work completion and frame display. It does this by consuming Windows ETW traces, instead of intercepting Present() calls like RTSS does. It could be that this is s...

60hz (xl2430t) = 21ms with scanline sync + vsync (0.01) method 60hz (aw2518h) = 16.82ms with scanline sync + vsync (0.01) method i just ran the program when i ran dolphin and it told me the latency Someone explain how with the same settings and the same hz get different results? Assuming GPU model ...

In the window you run PresentMon from it will output stats for all active swap chains. For example:
The number in red is what crossjeremiah is probably reporting. In the CSV, this is the MsUntilDisplayed column.