Hi - I originally asked this initial question in the Microsoft Support Community, but it won't let me add to the thread - it keeps asking me to come here, so I need to re-ask the question. (Probably related to migration to this Q&A platform).
In any case, the issue was initially related to Preview update KB5060829 which was causing issues switching HDR on using the switch in Settings > Display which would cause my screen to go blank like normal, but it would return back to the same screen again with the HDR button still in the off position and my TV not activated into HDR.
Through some help from @DaveM121 (thank you Dave) and some AI searching it became clear that this recent update and perhaps the one before it had caused issues with switching to HDR, so rolling back this update fixed the problem, and I turned off preview updates by switching the "get updates as soon as they are available" to off - meaning I think this means I only get the cumulative updates once they are ready for full release.
Fast forward to today when full update KB5062553 was available, and after installing that full update (not preview) - the HDR issue has returned, so unfortunately I've had to rollback that update too.
What I wanted to understand is what to do about this - clearly there's been a bug introduced in these latest updates that has broken the HDR capability, as rolling back to KB5063060 is the last update that keeps HDR working. I've paused Updates for the moment until I get perhaps some advice here on what to do.
I can confirm as soon as I've rolled back, HDR activates properly again and all is well, but if I enable updates again, it will try to install KB5062553 and the HDR issue will resume.
My system details are as follows:
Intel i7 8700
Gigabyte Z370N Wifi motherboard
32gb RAM
Windows 11 Pro (24H2)
I'm also running an LG OLED 65C7T which has successfully displayed HDR with this configuration for 7 years.
Anyone else having this issue? I'd rather not pause updates if I don't have to, but if it installs again, I'll lose HDR again.
I welcome any advice and thoughts and apologies I've had to retype this out, but my original question from the other week couldn't be replied to given the migration to Microsoft Q&A from the Community Support channel.
Cheers,
Mike.