dell inspiron n5520 radeon gpu wont work.?

[Dell Inc.]

Hello kristjan,
My name is Krishna and I work for the Social Media and Community Team at Dell. The AMD Catalyst Center is designed in a way that it automatically recognizes and assigns certain applications to the AMD video card and others to the Intel video card. You can specify which application must use a specific card, but you will not be able to Enable/Disable any graphic card manually.

If you need more help, please e-mail me your service tag number so I can check for other options. You can reach me at Krishna_KRN@Dell.com

Regards,
Dell-Kris K
Dell Social Media and Communities