I got used Dell Vostro 3550. Specs says it have two graphic cards:
- AMD ATI Mobility Radeon HD 7450M/7650M
- Intel® HD Graphics 3000
But Ubuntu 14.04 LTS only see Intel (I tested 12.04 LTS and same results). Preinstalled Win7 also saw only Intel before being erased.
What's going on? I suppose ATI card can't be unplugged.
Also in BIOS there is nothing about Video Cards.
filip@B17:~$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) filip@B17:~$