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Comment by singhrac | Hacker News Reader

I recently recently upgraded my main monitor from 1440p x 144hz to 4K x 144hz (with lots of caveats) and I agree with your assessment. If I had not made significant compromises, it would have cost at least $500 to get a decent monitor, which most people are not willing to spend.

Even with this monitor, I'm barely able to run it with my (expensive, though older) graphics card, and the screen alarmingly flashes whenever I change any settings. It's stable, but this is not a simple plug-and-play configuration (mine requires two DP cables and fiddling with the menu + NVIDIA control panel).

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Why do you need two DP cables? Is there not enough bandwidth in a single one? I use a 4k@60 display, which is the maximum my cheap Anker USB-C Hub can manage.

If you're on an Nvidia 4000 series DisplayPort is limited to 1.4, ~26 Gigabit/s.

https://linustechtips.com/topic/729232-guide-to-display-cabl... is a calculator for bandwidth 4K@144 HDR is ~40 Gigabit/s. You can do better with compression, but I find Nvidia cards have an issue with compression enabled.

Interesting. I've been running my 4K monitor at 240Hz with HDR enabled for months and haven't had any issues with Display Stream Compression on my 4080.

For me it's a small issue with full screen (including borderless iirc) games causing the display to black out for a few seconds.

I don't think it's an issue until you notice. I only noticed because I toggle HDR for some games and at 1440p240hz, the difference is just enough to not need DSC

I'm not sure, but there's an in-depth exploration of the monitor here: https://tftcentral.co.uk/reviews/acer_nitro_xv273k.htm

Reddit also seems to have some people who have managed to get 144 with FreeSync, but I've only managed 120.

Funnily enough while I was typing this Netflix caused both my monitors to blackscreen (some sort of NVIDIA reset I think) and then come back. It's not totally stable!

Had the same issue at 4k 60fps, it mostly worked but the screen flashed black from time to time. I used the thickest cable I had lying around and it has worked fine since.

This is likely a cable issue. Certain cable types can't handle 4k. I had to switch from DisplayPort to HDMI with a properly rated cable to get past this in the past.

It works up until too many pixels change, basically.

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