Greetings, As previously discussed on this mailing list, xf86-video-geode will eventually be retired and replaced with a Linux KMS driver.
Someone had actually started working on such a driver ages ago. The author has been tracked down and just uploaded what he has below: https://github.com/fbrausse/geode-lx Help to polish the code and upgrade it for for merging at the LKML is welcome. Martin-Éric