G-sync issue with Windows 11 24H2 - Photoshop screen tesring

[adrichardson81]

So Windows 11 ninja installed 24H2 on me last night. I've noticed a lot of flickering in Photoshop and Nik Collection when g-sync is enabled. I'm on the latest Nvidia driver (reinstalled today) and g-sync is definitely only enabled for full screen games and disabled for windowed games.

If g-sync is enabled at all, I get a combination of screen tearing and flickering in most photo editing apps (they're all gpu accelerated so I'm guessing that's the trigger). I tried setting a fixed refresh rate profile for Photoshop, but it looks like there's a background process that randomly causes it to toggle off and on.

Other than keeping g-sync off unless I'm playing a game or disabling gpu acceleration in these apps, is there anything else I can try? Is anyone having similar issues?

 

[Orcvader]

When I updated to 24H2 I noticed some weird screen tearing issues/lag as well, mostly with videos, and also nailed it down to Gsync. Using a 3070. Are you also using multiple monitors?

I tried DDUing the drivers so I can start from a clean slate, then installed the latest. Same thing. Also tried rolling back to an older driver too.

I then disabled MPO and that seemed to fix things: https://nvidia.custhelp.com/app/ans...ady-driver-461.09-or-newer,-some-desktop-apps

However when I was trying the Monster Hunters Wilds demo, when attempting to turn on frame gen I had to enable hardware scheduling in Window's graphic settings (which I had off since W10), then noticed full screening videos on the second monitor was causing massive tearing.

Used the above Nvidia link to re-enable MPO and that fixed that... except now I noticed if I have a video running (on either monitor), then open an app which also use the media encoder on the GPU in a certain way, the video starts lagging and skipping frames. A quick refresh on the browser fixes it however. Doesn't always happen though so haven't managed to nail it down. Tried DDUing again and installing the latest drivers but still present.

On the other hand, my Nobara Linux install is working fine. So definitely something funky going on with 24H2 and at least with current Nvidia drivers.

 

[adrichardson81]

Thanks - good to know I'm not going completely mad!

I'm using 1 monitor and tried 572.16 and 572.42. 572.16 was fine with 23H2, so it's definitely a 24H2 problem. I remembered I actually tried 24H2 when it 1st came out and had the same problem, so it's survived multiple driver versions.

It looks like disabling MPO has done the trick - thanks for that! I struggled to find out whether the setting actually does, but so far nothing new looks broken.

I'm genuinely surprised they're forcing installs - it's really not ready for prime time. Colour calibration is broken on 10bit displays unless you disable automatic profile management and auto HDR just crashes games.

 

[adrichardson81]

I thought I was too! If you're still on 23H2, you might want to pause updates now. It wasn't even showing as an optional update for me before it decided to install.

I don't understand why they want people off 23H2