ATI Mobility Radeon HD3650 (switchable hybrid)
Laptop in question is T500, type: 2082, model: 6MG
It is equipped with M86M Hybrid 256Mb. It means that it have two cards and chip used to switch between them. The one called "integrated" card is Intel graphic card, and the one called "discrete" is ATI graphich card. If you want to use either one on Linux, you will have to disable switching between them and chose which one you want to use. I chose "discrete" because I need 3D acceleration for gamming.
I am using Fedora 8 with 126.96.36.199 kernel and fglrx, version 8.542-2.8.10.
"Discrete" graphich card is "ATI Mobility Radeon HD 3650".
You can get working X display by using either usual "vesa" driver (no 3D accel.) or proprietary ATI "fglrx" driver (3D accel. is working excelent).