The person shared videos. So there are two videos of the same monitor (Dell S2417DG) made by the same camera (Sony Xperia XZ Premium @ 960fps):Also, one person I know has a 165hz/1440p monitor with G-Sync (Dell S2417DG). I linked this thread to him and he decided to test his monitor with 960fps camera on his phone and he measured that when he enabled 60hz mode the panel scanout time was 10-11ms (in 60hz G-Sync ON and 60hz G-Sync OFF cases). So its quite confusing. Is there a particular reason manufacturer would configure scan rate scaler for 60hz not at minimum 1/165s and not at maximum 1/60s but somewhere in the middle?
1. 165hz with G-SYNC ON and with 60 fps cap (actually 62.5fps because the cap was set using 16ms frametime but that doesn't matter in this case). As expected every time scanout starts it goes on for about 6-7 videoframes (6-7ms of real time).
https://drive.google.com/file/d/1ntUoOh ... sp=sharing
2. Now he enabled 60hz with G-SYNC OFF and V-SYNC ON. Every time scanout starts it goes on for about 10-11 videoframes (10-11ms of real time).
https://drive.google.com/file/d/1SALe2L ... sp=sharing
So it is definitely lower than 16.6ms but higher than 6ms and as it seems camera has nothing to do with it. So the question remains:
Is there a particular reason manufacturer would configure scan rate scaler for 60hz not at minimum 1/165s and not at maximum 1/60s but somewhere in the middle?