AMD Radeon RX 640 problems question

[HiMrRes23948]

Yesterday, AMD Radeon RX 640, i can see my display on my monitor then I shut down my computer properly then today I turned computer on, i don't see display on my monitor, then i forced turn my computer off then i removed monitor plug from my AMD Radeon RX 640 then I plugged my monitor into integrated graphics, then i turned my computer on then I see display on my monitor. How do i fix it??

[Tan3l6]

In BIOS there should be an option to switch between iGPU and dedicated one. Though why it would reset to iGPU is strange.

[HiMrRes23948]

2 hours ago, Tan3l6 said:

In BIOS there should be an option to switch between iGPU and dedicated one. Though why it would reset to iGPU is strange.

I have NOT change in BIOS settings since couple days 

[Maplez]

GPU mightve just died, boot to windows with the iGPU and go to device manager, display adapters, and see what it says about your RX 640