Can't get more than 30hz on my TV

Help
1

I have a mini computer on my tv and wanted to use it with KDE but it can’t detect the real refresh rate of it. I Try different distros that use KDE and try it on an other TV too.
My 4k monitor is detect correctly
My two 4k TV is locked at 30hz.

Right now i use Gnome because it can correctly detect the refresh rate of my 2 TV.

I’m just a average user so i don’t really know if you need anything just tell my i will post it.

The computer is a beelink AMD Ryzen 7 5700H with Radeon Graphics 32gig of ram

Edited: Just forgot to say that the same problem happen on X11 and Wayland

2

Are you sure it works in GNOME? Check out 4K 30Hz vs 4K 60Hz? Is Your Current Video Adapter Living in the Past? – Juiced Systems.

3

Yes. The easiest solution i fund was to install Zorin since it use gnome and have a Plasma-like UI and i will just wait for Plasma 6 to see if this problem is solve.

Thx for the answer

4

just want to say that the problem got resolve with Plasma 6

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