my tv is connected with an hdmi 2.0 cable but still says that hdr is not supported. it still works on my ps4 pro and all. i tried "forcing hdr" on my tv settings but when i do it doesnt detect any signals. i tried restarting my pc after that but nothing changed. every drivers is up to date.

HDMI support on TVs. Unless you're using a CRT from the late 90s, chances are your TV has an HDMI port. It is important to note that while the new consoles use HDMI 2.1 as the connection, it doesn

Freesync is a 3rd party technology. We officially support the industry standard HDMI variable refresh rate (VRR) over HDMI 2.1 specification on GeForce RTX 30 series and above." You can't with an Nvidia GPU. Connect it via DP for G-Sync. HDMI 2.1 does support G-Sync, but the 2080 doesn't support HDMI 2.1. If you want to enable HDR for a higher resolution display, say 8K, HDMI 2.0 cable may not support it. In this case, try HDMI 2.1 cable. Read : How to check If HDR is supported on a Windows 11 PC .
The increased bandwidth of HDMI 2.1’s 48G cables will enable support of new UHD resolutions, including 4Kp120, 8Kp100/120, 10Kp100/120, and increased refresh rates. It is no less important that
Yes, HDMI CAN support 240Hz. However, the more comprehensive explanation is that it depends upon the version of HDMI your PC supports and the monitor’s resolution and color bit depth. 240Hz refresh rate, as we know, really pushes the limit of what the monitors can achieve. Only the best and top-of-the-line monitors support such high refresh . 128 366 204 224 293 86 44 57 80

does hdmi 2.0 support hdr