Mate 24.04 LTS graphic settings crash with 4K and 6K screens

I have try Ubuntu Mate 24.04 LTS with 2 Dell monitors one 4K and main monitor is 6K.

The problem is that when I installed Mate 24.04 it makes the 4K main monitor. But when I try to switch to make 6K monitor the main the grapich system and display crash. And I get black screens.

But when I have one screen regarding which works fine but not together.

It's on AMD Radeon RX 7900xtx Sapphire

So what can be the problem?? Any idea?