I am new to deepin. I have two graphics cards - an onboard Intel 2nd Generation Core Procesor Family Integrated Graphics Controller and an ATI Radeon HD 2400 PRO/XT. Deepin only works with the onboard intel video card but does not recognise the ATI Radeon HD 2400 PRO/XT and, as a result, I cannot get my third monitor to work. What do I need to do to enable the ATI Radeon HD 2400 PRO/XT graphics card?
中文 
I am new to deepin. I have two graphics cards - an onboard Intel 2nd Generation Core Procesor Family Integrated Graphics Controller and an ATI Radeon HD 2400 PRO/XT. Deepin only works with the onboard intel video card but does not recognise the ATI Radeon HD 2400 PRO/XT and, as a result, I cannot get my third monitor to work. What do I need to do to enable the ATI Radeon HD 2400 PRO/XT graphics card?
Thanks.