ok you have to remember this is a tv, not a monitor. your trying to make the tv use resolutions it does not support
1080p @ 60Hz @ 4:4:4 Yes
1080p @ 120Hz Yes (native support)
1440p @ 60Hz No
4k @ 30Hz @ 4:4:4 Yes
4k @ 60Hz Yes
4k @ 60Hz @ 4:4:4 Yes
4k @ 120Hz No
All the common input resolutions are supported. For the TV to properly display 4:4:4 color, the HDMI input in use must have its icon changed to 'PC'. To play 4k @ 60 Hz @ 4:2:2 or 4:4:4 color, 'HDMI ULTRA HD Deep Color' in the general settings must be enabled for the input being used.
Update 05/31/2017: 1080p @ 120 Hz + HDR does not work properly. Its brightness appears to be following the SDR gamma curve rather than the HDR PQ curve, making everything look off and too bright.
https://www.rtings.com/tv/reviews/lg/c7-oled
also need to make sure your plugged into the right hdmi on the tv on some units.
and have seen tv's be picky about hdmi cables used.
NeonBlizzard reacted to circeseye in 55 Inch LG C7 OLED Erratic Behaviour with HTPC
