3 ms·
What you're describing is fully a product of the display controller architecture, not the digital signal. You can "chase the beam" with HDMI/DVI just as well (o
by cmrdporcupine 3y ago
What you're describing is fully a product of the display controller architecture, not the digital signal. You can "chase the beam" with HDMI/DVI just as well (or better) as you can with analog. There's no need to buffer the whole screen and be even one frame latent.
I've done it in Verilog on FPGA, for example.
But we do so on our machines because that's how the GPU/display controller pipeline works easiest from a software POV. That latency would be present on a CRT as well. What would be missing is the internal latency present in some monitors.
- mabster 3y agoI was doing the "chase the beam" approach, but never got it off the ground (home project, mostly curiosity). But always on the back of my mind was: even if you're doing everything in low latency HDMI signals, there's no guarantee that the display isn't still buffering it, even if you have "game mode" on on your TV.
- cmrdporcupine 3y agoyes, absolutely, the monitor vendor can do whatever they want still, it's usually only 2 or 3 frames in game mode on a good display
- jonhohle 3y ago> on a good display This is a thing in the last 5-10 years, but was absolutely not a concern to the majority of display manufacturers before gamers complained. 100ms is significant in twitch games where network latencies are 20ms or lower.