So I can regular vsync 64-77 with ~72 ms average, vsync/2 (disabling drop late) 102 ms or no vsync + tearing (63 ms in my test). Thanks
I don’t think Max Device Latency 0 does anything meaningful. There’s a minimum value of 1, the only reason the UI lets you select 0 is because -1 is reserved for application-default.
I should probably fix that
If you right-click the Waitable SwapChain button, there are a few super secret values you can tune that control latency bias 
Setting both to 1.0 will aggressively reduce the render queue depth, 0.5 is a good compromise between stutter reduction and latency. These values aren’t saved, and will probably be a slider of some sort if they stick around.
I haven’t documented that stuff yet, it’ll be explained in more detail when I do LDAT-based testing later this month.
Update on HDR screenshots:
For D3D12 games that support scRGB natively (AC Valhalla and Cyberpunk 2077 basically), here is a test version that supports HDR capture and HDR → LDR tonemapping for Steam.
dxgi.7z (7.6 MB)
The more common form of HDR (HDR10) is not yet supported, but I think I can finish it by weekend.
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What frame limiter settings would be best for a 30 fps lock in Cyberpunk? Also this is for a use case where the screen’s refresh rate is set to 30 hz as well.
Click Engage Framerate Limiter and you’re done. If you use the latest test build.
Bump…
I uploaded a newer build to the title post, it should now work correctly with RTSS or the Steam Overlay in Local and Global Injection.
That’s pretty much all known compatibility issues solved, but the list of missing features is still unchanged. Compat’s more important though, so 
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Is the HDR to SDR screenshot mapping working correctly? The resulting screenshots from Cyberpunk look really wrong.
Looks crushed and oversaturated. I use scrgb
I got near flawless results by taking screenshots with GFE overlay, then making 2-3 adjustments in Photoshop which I turned into a macro. The results look almost the same as what I saw with HDR, just without all the brightness.
No, it is not working correctly at the moment. The tonemap is broken for HDR10 games. If you use scRGB, it may work… It’s still a Work in Progress for D3D12.
That said, WTF? You claim GFE took a correct screenshot?
That’s what happens when I attempt a screenshot using GFE.
You should just use SK’s HDR screenshot (.jxr), then tonemap that using your preferred tool (WCG + HDR Image viewer is popular). When SK’s tonemapping works correctly, it produces roughly the same results, though with emphasis on preserving luminance detail rather than color.
No I’m not saying GFE has correct results, but I can take those messed up pics, adjust couple values in PS and I get a good output. This was made from a GFE pic
SK Tonemapped HDR->LDR
WCG + HDR Tonemapped HDR->LDR
Anything else
The SK tonemapped screenshot is a little dimmer, perhaps, but image detail is preserved.
I probably missed something but HDR screenshots are supported in dx12 correct? With Cyberpunk 2077 I get a solid black jxr. But works fine with windows game bar. But I would prefer to avoid using that if I could.
I have a resolution of 5120x1440. not sure if that would be an issue.
See the below response in another thread:
It’s been fixed
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Ah, sorry for missing that.
Thanks for that. Works 
Now that DX12 has pretty functional HDR support through Special K, is there any change for an eventual Vulkan HDR release?
Still broken for me in Cyberpunk.
For me it works when you first take screenshot in main menu but I found out using my controller to take screenshot actually proves to be working. But yeah sometimes it does black images and sometimes it comes out right.
Always blank for me.
Vulkan would have to support HDR first 
Developers stuck with Vulkan always resort to either not support HDR in their game, or using D3D11 to Frankenstein HDR into that API.
I don’t want to bother with that.
Use this for HDR screenshots:
dxgi.7z (7.6 MB)
Supports them whether you have SK’s UI enabled or not. Normally you need to have SK’s OSD turned on before it can capture HDR post-processed image.