ati/amd 5xxx 6xxx 7xxx graphics cards framebuffer personalities
if you're having trouble with blank screens on dual or triple port configurations on 5xxx and 6xxx cards. You don't have to reconfigure anything.
To test an alternate framebuffer on amd card, type the following at the chimera boot screen-
and then the name of the framebuffer, like
hope this helps!
5xxx framebuffer personalities
graphicsenabler=no
vervet
douc
langur
uakari
zonalis
alouatta
hoolock
baboon
eulemur
galago
colobus
mangabey
nomascus
orangutan
6xxx framebuffer personalities
graphicsenabler=no
pithecia
bulrushes
cattail
hydrilla
duckweed
fanwort
elodea
kudzu
gibba
lotus
ipomoea
muskgrass
juncus
osmunda
7xxx framebuffer personalities
graphicsenabler=no
aji
buri
chutoro
dashimaki
ebi
gari
futomaki
hamachi
opm
ikura
ikuras
junsai
kani
kanis
dashimakis
maguro
maguros
for full dumps, check out sj_underwater's thread here:
http://www.tonymacx86.com/graphics/112299-apple-intel-amd-ati-framebuffers.html
another helpful boot flag for amd cards is the atiports= flag. If you need a particular port active, try setting this:
as in:
you can experiment with different framebuffers and port numbers.