Model Graphics Driver Version Status Distributions Notes
Satellite C55D-B5214 A8-6410 quad R5 Radeon Catalyst 15.7 Works LinuxMint 17.2 based on Ubuntu 14.04 Trusty Patches are required to get it installing on kernels greater than 3.13, I got it working to 4.0.9. Runs Unigine Heaven 4.0 10 frames per second with low quality moderate tesselation 1366x768.
Satellite L645D-S4058 ATI Mobility Radeon HD 4200 Series Catalyst 11.2 Works Ubuntu 10.10 Performance is not as good as experienced in windows, but not too bad either.
Satellite L655D-S5130 ATI Mobility Radeon HD 6300 Series (lspci shows '9803') Catalyst 11.9, 11.11 Works Fedora 14, installed 10/2011

Fed 15

1366x768 works, speed comparable to Win7, xinerama off, compositing on. w/o catalyst driver runs vesa 1024x768 OpenGL requires non PAE kernel- check grub.conf after upgrade, kernel updates to PAE version
Satellite L500-120 (Intel Core2Duo) ATI Mobility Radeon HD 4650 Series (DeviceID 9480 / also known as "M96" ) Catalyst 10.x , 11.x & 12.x Works Distros : Ubuntu 10.04/10.10/11.04/11.10, Opensuse 11.4 , SLED 11 SP2 ( SP0 + SP1 does not detect card properly) 1366x768 natively in 15,6 inches screen; speed very good ( Gimp/Blender/Movie Rendering/Videos ), compositing with Compiz under Gnome2/KDE4 and all sort of effects works in all Linux versions - only Ubuntu's new Unity is problematic , sluggish and needs some advanced tweaks within compizconfig-settings-manager like disable vsync and reduce mouse polling time ( beta testing 12.04 shows lot of progress .. to be seen when final is out ) .

Card has 1024MB own RAM, machine has 4096MB - tested kernels : 2.6.39 through 3.2.x x86PAE as well as x64, all fine.