Blur Busters Forums

@Chief thanks a lot for confirming the tearing/buffering issue on the DLP - makes me feel at least a little bit better of knowing how the stuff works inside. :D Great work also on the VSYNC API. Being able to have finer grained access to and information about refresh timings would be awesome. I neve...

@RealNC: In my Windows 10 version (20H2) DWM and Triple Buffering are on by default despite the NVIDIA settings. The "Disable fullscreen optimizations" and "High DPI scaling override" compatibility also make no difference. Do you have any source on Windows changing DWM behaviour (and when it was int...

Update: I recorded my VSYNC Tester at ~400fps on my DLP with VSYNC OFF using a Mac (does not seem possible to disable Triple Buffering caused by Windows DWM because I can't get exclusive fullscreen). The image is now identical to what the LCD monitor produces: Screenshot 2021-06-16 at 23.53.01.jpg W...

I added frame numbers to my testing program. Result: What I identified as tearlines earlier one is just the pixel response of the LCD. Screenshot 2021-06-16 at 13.34.46.jpg On both LCD/DLP there are no tearlines visible that are caused by the higher framerate. The reason I don't see what I mistook a...

So I wrote my own program to test the tearlines. It updates at 480Hz and shows a red vertical line going left/right and blue horizontal line going up/down. This is what I get on the DLP projector (please ignore the the rgb cross in the center top): 20210614_170423.jpeg What confuses me is how is the...

Sorry if I am being dense. Just taking a step back here to make sure of some basics. So TestUFO is broken for the VSYNC OFF scenario, but let's assume we have fixed it or used a different software. The DLP would still wait 1/60Hz to fill up its internal, additional framebuffer, copies it to a second...

Wow, thanks so much for your reply. Picturing the DLP as an >1.4KHz Display that has to buffer a whole frame and thus adding 1/60Hz really helps in understanding. This also means that every DLP will have at least an input lag of 1/(Refresh Rate)? If my projector is 60Hz and has a 6 segments on the c...

Also if VSYNC was still on, I shouldn't be seeing 2500Hz on the DisplayHz website, right?

Global settings and application specific settings for Chrome are identical (i.e. VSYNC OFF, Tripple Buffering, Max Framerate Off). I suspect it is the DLP projector and not the software.

I want to reduce the input lag of my BenQ DLP Projector with a 6-segment color-wheel (RYWCBG). I measured a lag of ~35ms using the Leo Bodnar device (which I suspect runs at 60Hz VSYNC ON). I now hoped that I could reduce input lag by turning VSYNC OFF and increasing the framerate. The application i...