ext. Cinema Display with FBDev
Hello folks,
I'm trying to get my Cinema Display 20'' (predecessor model) work on
my Powerbook G4 with
Radeon 9600 M10 (OS X is saying 9700 M11, I think both use the same
chip R300).
I have an almost working config with kernel 2.6.12.3 and XFree 4.5.0
over the FBDev.
I append "video=ofonly" to the kernel :
image=/boot/vmlinux-2.6.12.3
label=Cinema
read-only
root=/dev/hda9
# does not work :
# append="video=aty128fb:vmode:20"
# append="video=radeonfb:1680x1050-32@60"
# append="video=radeon:1680x1050-32@60"
# append="video=atyfb video=ofonly"
# append="video=radeonfb video=ofonly"
# works :
append="video=ofonly"
The XFree - configuration is raw the following :
######################
# DEVICE
######################
Section "Device"
Identifier "FB"
Driver "fbdev"
BusID "PCI:0:16:0"
Option "fbdev" "/dev/fb1"
######################
# MONITOR
######################
Section "Monitor"
Identifier "CinemaFB"
VendorName "Apple"
ModelName "Apple Cinema 20"
# 1600x1200 @ 70 Hz, 87.50 kHz hsync
Modeline "1600x1200" 189 1600 1664 1856 2160 1200 1201 1204
1250 -HSync -VSync
EndSection
######################
# SCREEN
######################
Section "Screen"
Identifier "Cinema"
Device "FB"
Monitor "CinemaFB"
DefaultDepth 8
SubSection "Display"
Depth 8
# has no effect with FBDev
# Modes "1600x1200"
Visual "StaticColor"
EndSubSection
EndSection
The Problem is the output of the FBDev that looks like that :
http://www.forward-tech.de/Cinema_Output.jpg
If I make a Software - Screenshot (http://www.forward-tech.de/
Screenshot.jpg),
the colors look correct, so I guess it is the FBDev.
Especially when I take a look to the radeonfb.c driver there is nothing
about the M10 in there.
Has anyone made the same experiences or found a solution ?
Experiences in builing an DRI driver with X.org or
with R300 codes on http://r300.sourceforge.net/R300.php are
appreciated, too.
Thanks a lot for your help,
Michael Igler
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