Search found 42 matches

by xeos
25 Oct 2020, 15:23
Forum: Input Lag / Display Lag / Network Lag
Topic: Human Benchmark implemented in C++ DirectX9
Replies: 38
Views: 7077

Re: Human Benchmark implemented in C++ DirectX9

why not go Direct X 11 and implement all of my suggestions, also a proper reaction time test would have MIN random delay be atleast top 0.1% focus time, so that people cant cheat. https://docs.microsoft.com/en-us/windows/win32/api/dxgi1_3/nf-dxgi1_3-idxgiswapchain2-setmaximumframelatency I am also ...
by xeos
15 Oct 2020, 00:19
Forum: Input Lag / Display Lag / Network Lag
Topic: [App (Win32/64)] Display Input Lag Tester (no hardware req!)
Replies: 11
Views: 10370

Re: [App (Win32/64)] Display Input Lag Tester (no hardware req!)

this is an awesome idea, but I suspect it's going to work better with some keyboards than others. For $5 you can buy a raspberry pi zero and use some free software I wrote to do the same thing, but with much better reliability. While a high speed camera is great, my software also offers ~1ms accurac...
by xeos
16 Sep 2020, 17:55
Forum: Input Lag / Display Lag / Network Lag
Topic: Cause of variable input lag?
Replies: 10
Views: 2347

Re: Cause of variable input lag?

I attach my sensor with tape. It's not going anywhere.
by xeos
16 Sep 2020, 16:56
Forum: Input Lag / Display Lag / Network Lag
Topic: Cause of variable input lag?
Replies: 10
Views: 2347

Re: Cause of variable input lag?

These are photodiode tests. two different devices (my piLagTesterPRO and the OSSC) have measured this behavior across 5 different TVs.
by xeos
16 Sep 2020, 14:56
Forum: Input Lag / Display Lag / Network Lag
Topic: Cause of variable input lag?
Replies: 10
Views: 2347

Re: Cause of variable input lag?

Since nobody has offered a compelling alternate explanation of the drifting input lag I've measured I went ahead and wrote up my explanation in detail: https://alantechreview.blogspot.com/202 ... -dont.html
by xeos
12 Sep 2020, 11:58
Forum: Input Lag / Display Lag / Network Lag
Topic: Cause of variable input lag?
Replies: 10
Views: 2347

Re: Cause of variable input lag?

different input lag based on the input is definitely something I've observed. it's because the different inputs (vga vs hdmi) have very different signal processing requirements.
by xeos
12 Sep 2020, 10:21
Forum: Input Lag / Display Lag / Network Lag
Topic: Cause of variable input lag?
Replies: 10
Views: 2347

Re: Cause of variable input lag?

Have you seen anything like that?

That would be some pretty fancy processing. Definitely beyond what these older TVs could do, but maybe with newer tvs.
by xeos
11 Sep 2020, 15:46
Forum: Input Lag / Display Lag / Network Lag
Topic: Cause of variable input lag?
Replies: 10
Views: 2347

Cause of variable input lag?

I've been testing a bunch of TVs that I picked up cheap on the used market and have found that the input lag on several of them isn't consistent between tests, but differs by up to 16ms. Have other people seen this? I've never seen it mentioned in a mainstream tv review (rtings or the like). Maybe i...
by xeos
07 Sep 2020, 15:16
Forum: Input Lag / Display Lag / Network Lag
Topic: New input/display lag measurement kit using raspberry pi and some cheap hardware
Replies: 1
Views: 753

Re: New input/display lag measurement kit using raspberry pi and some cheap hardware

FYI for those of you wondering why you might want to measure your input lag, I've found that displays input lag can vary depending on a of factors. Expected one's like game mode, but also it can depend on other visual settings like noise reduction, or even resolution (I just tested a TV where at nat...
by xeos
02 Sep 2020, 11:44
Forum: Input Lag / Display Lag / Network Lag
Topic: Human Benchmark implemented in C++ DirectX9
Replies: 38
Views: 7077

Re: Human Benchmark implemented in C++ DirectX9

5. look into using CreateDeviceEx which allows independant/immediate flip would that allow gsync/freesync based flipping? Otherwise I think keeping locked to vsync is better. you just need to keep track of when the image is actually displayed and measure response time relative to that. Of course to...