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jaromeyer / XPS9570-Catalina

macOS Big Sur for the Dell XPS 15 9570 using the OpenCore bootloader.
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HDMI not working #14

Closed toonvanstrijp closed 4 years ago

toonvanstrijp commented 4 years ago

I tried connecting my LG TV via HDMI but the laptop didn't recognise any screen. I'm not sure what version of HDMI the TV has. But I think it's version 2. Also I'm using the 9570 4K version.

I don't see anything mentioned about HDMI support so my guess is, that this isn't implemented yet?

frbuccoliero commented 4 years ago

FHD here. Connecting to a FHD monitor it works smoothly. Recognized as external screen, can drag the screen position to fix cursor while going from a screen to the other, can mirror... Try out another HDMI cable maybe.

frbuccoliero commented 4 years ago

Btw in documentation branch @jaromeyer added "2560x1440@144Hz over HDMI and 4k@60Hz over DisplayPort have been tested." You can try downscaling screen quality to match the max allowed.

toonvanstrijp commented 4 years ago

@frbuccoliero I got to try it out on another screen and this time it worked flawlessly! So I guess it was either the cable, or the TV that didn't support it.