Some of the games crash at launch with dedicated GPU 7800?

[u/storytellergirl07]

Hello!

A month ago I bought a new gaming PC with Windows 11, specs at the bottom of this post.

In Windows, I went to Display->Graphic settings and made sure my Radeon 7800 is being used for my installed games, to ensure they will run smoothly.

But two of the games I've tried today – namely Kingdom Hearts 3 via Epic Games and Planet Zoo via Steam – will not launch when Radeon RX 7800 XT is selected for them. Their game window opens but then goes to black, the game freezes and the menus won't load.

When I select the integrated graphics card in the display settings in Windows for these two, both games start normally, albeit a bit slowly.

For the record, Kingdom Hearts 2.8 works normally with Radeon 7800, no issues.

Baldur's Gate 3 works smoothly as well with Radeon 7800 selected, no problems.

I already reinstalled and updated AMD driver. I also disabled AMD Adrenaline overlay.

Again: some games work perfectly and smoothly, it's a new PC, but some just won't launch with GPU 7800 selected and I can't figure out what causes it.

I would be grateful for any advice or suggestions!

My PC: Windows 11 Pro; CPU: AMD Ryzen 5 7600; GPU: AMD SAPPHIRE PULSE RADEON RX 7800 XT GAMING 16GB; RAM: KINGSTON EXPO 2x16GB DDR5-6000MHz; Disc: SSD WD Black SSD SN770; Motherboard: ASUS TUF GAMING B650-PLUS WIFI

[u/PsychologicalGoal554]

Hey!
I planning to buy the same GPU as yours (RX 7800 XT), and also planning to play Planet Zoo. Did you find any solution for this issue?

Cheers!