Koston wrote: ↑Thu Jul 20, 2023 9:06 am
This is a bit of a curveball, so take it with a pinch of salt.
My "great display" turned out to be the cheapest LG 65" 4K I could find a few years ago, iirc 650 EUR. I had no intention of using it for gaming, but it turned out to have almost no perceivable latency and syncs to everything I've thrown at it, with the unfortunate exception of 1920x1440 resolution. I use either 2560x1440 or 1920x1200 normally, with integer scaling and vsync_adjust=2. The viewing distance, size of 4K pixels and generously applied CRT style filtering make any potential scaling artifacts undetectable, I don't bother with my CRTs any more except for serious speedrunning (then also use original hardware).
I know there's a lot to improve in technical specs of my ghetto TV. But it's big, flat, cheap, lightweight, maintenance-free (I've had to service every damn CRT I've had and none still are/were anywhere near "perfect") and thanks to the newer video filters, I am very happy to finally be (mostly) rid of CRTs
Update: I just received a MiSTer Laggy by Wickerwaka (viewtopic.php?t=7270) and measuring latency on top part of the screen consistently turns out roughly between 6-8ms, regardless of resolution.
Then the bad news - setting any other refresh rate than 60Hz or 50Hz causes the framebuffer to kick in, and latency climbs to 1,5-2,5 frames. My TV doesn't support VRR (variable refresh rate) or any other than 50/60Hz apparently, so it either needs to be fed one of the two, or it converts the signal internally. This is consistent with Wickerwaka's findings:
Wickerwaka wrote:
Biggest thing I've discovered with this device so far is that you really should use vrr_mode if you are using an LG OLED. Their low latency boost mode is fantastic, 2.4ms latency, but only if the refresh rate is 50hz or 60hz. Lots of arcade cores have refresh rates like 58hz or 62hz and when receiving a refresh rate like that the LG OLED goes into a buffering mode and adds 1-3 frames of latency. When in VRR mode it does not add this additional latency.
This leads to the conclusion that a VRR-capable TV is very desirable for any signal that's not flat 60/50Hz. Which leads to more bad news - checking prices today, the cheapest same size LG model I can find that supports VRR is twice as expensive as what I paid for my peasant TV roughly four years ago. Prices at the lower end haven't changed much either, equivalent of my TV is now 550 eur (down from 650 eur) - and it's been stripped of component input, if that matters.