The discrete video card at the laptop burned out?

Question

Iron

Symptoms:
1. When setting the BIOS Graphic mode = discrete
The laptop screen does not work, but an additional monitor is connected via the VGA connector. Connected to change to the built-in video card. I did not time the work
2. When setting the BIOS Graphic mode = swichable
The laptop screen works. But when loading windows 10 after a while (5-10 minutes) a blue screen falls out. I managed to disable the discrete video card programmatically - disabled the driver. The computer is operating normally.
What are the options? How much does a fix cost?
PS Aser 4820TG ZQ1C (5464G50 miks)

Answer 1

Results: The
video chip with the strapping burned out. Resoldering the video chip - 9 tr was requested in the SC. It would be easier to buy a mother on Ali for 3 tr.
So far, I decided this way: Disabled the discrete video card completely through the BIOS:
Downloaded here https://forum.ixbt.com/topic.cgi?id=17:38124:308#308 BIOS with the unlocked ability to change the video card only to the built-in

Answer 2

Without normal diagnostics it is difficult to say, perhaps a trite loop. If you do not know how to visit the service.