Modell: Thinkpad T400(Modell-ID: 2182)
Typ (notebook, netbook, motherboard, tablet):
notebook
Architektur:
x86-64/amd64
does it have a free boot firmware (BIOS,UEFI,...) ?
can be installed
can free operating systems be installed?
Ja
does the device prevent installing wifi cards not-approved by the vendor?
Ja (see the details inside the description entry)
Jahr der Markteinführung:
2008
Kompatibilität mit Freie Software:
C-silver 
überprüft mit Distribution:
Parabola GNU/Linux
Trisquel 10.0 Nabia
Überbrüft mit folgendem freien Betriebssystemkern (Libre Kernel):
Grafikkarte:
(works with 3D acceleration)
WLAN:
Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection (it does not work)
Webcam:
(there is no webcam)
Beschreibung:
Internal wireless card requires non-free firmware (iwlwifi). Install unauthorized wifi cards and it won't boot. Workaround is flashing free boot firmware as stated above.
It works fine with fully free versions of Coreboot, it probably does as well with Libreboot, and works fine with Parabola and Trisquel.
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