Arch Linux

sjostrand

Member

Registered: 2022-08-07

Posts: 26

Cant Set monitor to 6K 6144 x 3456@60 at HDMI in wayland only 4K

Cant Set monitor to 6K 6144 x 3456@60 at HDMI with wayland.

Both graphicard works with 6K and the HDMI cable is 8K cable

Whats to do??

Graphic Card : PowerColor Radeon RX 7900 XTX 24GB Hellhound

Both The monitor and HDMI on wayland is only 4K

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Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 14,967

Re: Cant Set monitor to 6K 6144 x 3456@60 at HDMI in wayland only 4K

Resolutions above 4k require HDMI 2.1 or later.

The HDMI Forum that owns the HDMI spec has forbidden AMD to support HDMI 2.1 in opensource drivers.
This includes the amdgpu kernel module on linux which is used by ALL amd linux drivers.

Intel support HDMI 2.1 by creating a DP signal that is converted to HDMI in hardware, nvidia uses a closed firmware level driver.
AMD does not have a working solution.

Use DisplayPort instead of HDMI, DP doesn't have those restrictions and works great on amd cards.

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

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