Dolby Vision looks very washed out/dim on LG C1

No, unfortunately, one cannot speak of clarity in this case, because I have experienced the exact opposite case.

I own the LG C1 and the LG C2, and the handshake problems have NEVER occurred in over a year of use on the C1! Instead, however, they keep coming back with the C2 on the same Xbox Series X console. When switching this console back to the C1, the same picture again, NEVER! LG C1 and LG C2 both support Dolby Vision (for gaming). Before testing the LG C2 with one / my Series X, I had never heard of the handshake issue with Dolby Vision. Besides, the LG C2 works very well, but the Dolby Vision handshake in games can hardly be tested on other devices, because the PS5 does not support this feature and other devices are at least unknown to me.

I used to watch 4k UHD discs on my One S and they looked great. For some reason recently they look washed out on my S and X. What happened?

Exact same thing here : at start the UHD discs looked fine. Now colors are washed out (since a few weeks). Which TV brand do you have ?

Both LG and Microsoft released firmware updates in september & october.

Also Netflix app on Xbox seems affected too if you watch dolby vision shows.

Thanks

Samsung makes a great TV but no support for Dolby Vision. Made it easy to buy an LG C7 OLED Dolby Vision 55"

Dolby vision is not 4k it is a software enhancement for the HDR aspect so not having it is not a major issue, but if you like to have all the green checks you need to look for high end tv's that support Dolby Vision like LG Oleds and Vizio Oleds

Have you tried turning Dolby vision off on your TV then turning the TV off, taking the power out and turning it back on and re-engaging the Dolby vision ?

(Not sure if that can be done on an LG, it can on my Sony)