Mura effect on certain games

[r.ford]

Repost:

I've noticed my 1TB OLED Deck displays a faint but noticeable grain-like effect whenever it displays a fully black screen. I've noticed this happen with the games Tetris Effect and Inside, but the mura effect doesn't display on other games for some reason.

I have turned on the 'Disable Mura Compensation' option and found that, upon displaying a pitch black screen via the MagicBlack plugin the mura effect is removed even with maximum brightness, but for some reason, the effect still persists on the above mentioned games.

I have tried the following:
Re-arming Mura Calibration
Turning off HDR
Launching games from desktop mode
Switching to beta update mode and back
Restarting the Deck
and the issue still persists.

I'm certain the issue can be resolved but I'm feeling a bit stumped at the moment. Any help would be appreciated.

Also, I should mention I've owned the Deck for about a month now and this only began happening yesterday. Outside of this, the Deck has had no other issues.

[maxfleming]

Hello friend... Maybe to late... But i want to help you...
I noticed the same problem. First in Red Dead Redemption 2 and now in AC Valhalla. And I think I've found a solution, but no explanation for the problem. First, activate the developer options in the settings. There, disable "Mura Compensation." This alone didn't solve the problem for me in any game... the trick is apparently to disable the HDR option in the respective game. Let me know if this was a help for you... Best regards from Germany

[maxfleming]

I mean "disable Mura compensation" AND deactivate HDR in your Games... 👍🤝