How to fix a problem with a discrete graphics card?

Question

laptops

Hello dear laptop owners.
There was a problem with the radeon 7670m discrete graphics card.
When loading on it and forcibly turning off the built-in card, the screen starts flashing, that is, the discrete card does not work normally, is there any way to find out if the video card is working?
Maybe something needs to be installed, if additional information is needed, I will provide it upon request, thanks in advance!)
Ps samsung laptop np355v5c

Answer 1

Ps who is interested.
The problem was solved by installing Windows 8, apparently the developers of the drivers for this video card stopped supporting Windows 7.

Answer 2

And how do you boot on a discrete drive and disable the integrated one? In fact. Boot from LiveCD and any diagnostic utility check the availability of two video adapters. If everything is in order, then you have to clean the driver and install from scratch. But more often it turns out that it's faster to reinstall Windu. If the discreet is not determined, then the chip is probably off. Good luck.

Answer 3

I would make a disk image with Acronis, and restore Windows from the recovery area. Everything will become clear immediately.
Next - act according to the circumstances.