No tengo ATI pero dandole caña al esearch he sacado esto:
* media-tv/atitvout
Latest version available: 0.4
Latest version installed: [ Not Installed ]
Size of downloaded files: 26 kB
Homepage:
http://www.stud.uni-hamburg.de/users/lennart/projects/atitvout/
Description: Linux ATI TV Out support program
* media-video/ati-drivers-extra
Latest version available: 3.9.0
Latest version installed: [ Not Installed ]
Size of downloaded files: 4,184 kB
Homepage:
http://www.ati.com
Description: Ati precompiled drivers extra application
* media-video/ati-drivers
Latest version available: 3.9.0-r1
Latest version installed: [ Not Installed ]
Size of downloaded files: 4,184 kB
Homepage:
http://www.ati.com
Description: Ati precompiled drivers for r350, r300, r250 and r200 chipsets
* media-video/ati-gatos [ Masked ]
Latest version available: 4.3.0
Latest version installed: [ Not Installed ]
Size of downloaded files: 379 kB
Homepage:
http://gatos.sourceforge.net/
Description: ATI Multimedia-capable drivers for XFree86