They are fully aware of the problem.
You can fix it by toggling Dolby Vision on and off under your HDR settings.
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Hi all,
I have an LG OLED G4 connected to my PC (Windows 11, NVIDIA 4090 graphics card). In Windows settings I’ve turned off “Use Dolby Vision mode,” and on the TV I’ve also disabled the Dolby Vision option for that HDMI port. Despite that, every single time I power the TV and PC back on, Windows starts in Dolby Vision anyway.
The picture looks brown, dim, and washed-out until I manually go into Windows, turn the Dolby Vision toggle on and then off again. After that, it switches to the normal HDR mode I actually want (“HDR Game Optimizer” on the TV) and everything looks fine—until the next restart, when the whole problem repeats. If I turn the TV off and on again while the PC is still on, it says in HDR Game Optimizer; it's when I restart the PC and the TV that it reverts to Dolby Vision again. It'll even revert to Dolby Vision if I just restart the PC, leaving the TV on the entire time. I've also tried hard power-cycling the TV (unplugged for one minute) after getting all the settings the way I want) and the problem still occurs.
In short:
This started after a recent Windows and graphics-driver update. It’s making HDR on my PC basically unusable.
Please let me know how to stop Windows from forcing Dolby Vision at startup, or escalate this as a bug. I just want my system to stay in regular HDR when I’ve told it to.
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They are fully aware of the problem.
You can fix it by toggling Dolby Vision on and off under your HDR settings.
If you have the Dolby option. I do not.
The latest Windows update finally resolved the issue for me. After installing last night's update, the problem is fixed - the Dolby Vision toggle no longer appears, and I don't have to manually enable/disable it anymore.
This was the update I installed
KB5060829
The latest Windows update finally resolved the issue for me. After installing last night's update, the problem is fixed - the Dolby Vision toggle no longer appears, and I don't have to manually enable/disable it anymore.
That's a bit vague unfortunately. Can you please look in your update history for any KB numbers that were installed 'last night' this should help narrow it down for others.
I'm on Windows 11 24H2. Same issue as the OP with an LG C4 with an Nvidia RTX 3080 Ti. I also have the most recent preview 2025-06 Cumulative Update Preview for Windows 11 Version 24H2 for x64-based Systems (KB5060829) installed from yesterday. I still have the Dolby Vision toggle. The only way I could get this to somewhat work normally with HDR10 was to Disable Dolby Vision PC in the LG menu and untick 'Use Dolby Vision' in Windows settings. When rebooting I still get the weird toggling between HDR and Dolby Vision popping up on the screen, but when the system is fully booted, it stays in HDR 10 mode. However, if I click the 'Use Dolby Vision' Windows will STILL force the LG C4 into Dolby Vision mode with the popup on screen and the settings on the LG changed in the menu to reflect the Dolby Vision mode just as if you had it enabled in the LG menu. Once I have toggled DV mode on in Windows settings, using the toggle again, has no effect. I have to uncheck DV, then Windows+alt+B twice to reenable HDR10 on the desktop. Very weird and repeatable behavior every single time.