Thread: Video pixelation on PPC

i installed ubuntu 10.04 on ppc g4 emac. it's way faster mac os x, video playback pixelated. think there fix in powerpcfaq, i'm not sure if i'm doing right.

with 10.04 , 10.10 turn off kms (kernel mode setting) using radeon.modeset=0 boot parameter (see above). if don't have poor video playback (a strange vertical pixelation) , low values in glxgears (you see "software rasterizer" written when running command glxgears -info).

need disable kms. insert radeon.modeset=0 boot parameter? i'd tried inserting in yaboot.conf this:

code:

boot=/dev/hda2 device=/pci@f2000000/mac-io@17/ata-4@1f000/disk@0: partition=3 root=/dev/hda3 timeout=50 install=/usr/lib/yaboot/yaboot magicboot=/usr/lib/yaboot/ofboot enablecdboot  image=/boot/vmlinux     label=linux     read-only     initrd=/boot/initrd.img     append="radeon.modeset=0 quiet splash"  image=/boot/vmlinux.old     label=old     read-only     initrd=/boot/initrd.img.old     append="quiet splash"

, running sudo ybin -v , sudo reboot in terminal.
tried: putting

code:

radeon.modeset=0 video=radeonfb:1024x768-24@60

or

code:

linux radeon.modeset=1 radeonfb:off

or

code:

video=radeonfb:off

or

code:

video=radeonfb:off radeon.modeset=0

or

code:

nomodeset

in place of

code:

radeon.modeset=0 quiet splash

running

code:

echo options radeon modeset=0 > /etc/modprobe.d/radeon-kms.conf

in terminal.
problem remains.

please help.

i think you've exhausted options there! yaboot.conf looks fine. know stupid question, sure have radeon card?

i've been playing lucid , best imho.

try

code:

video=offb:off radeon.modeset=0

if want try kms on instead, use

code:

video=radeonfb:off video=offb:off radeon.agpmode=-1

when booted use command

dmesg | grep drm

if few lines of output kms not on (even if says enabled).

know.

Forum The Ubuntu Forum Community Ubuntu Specialised Support Apple Hardware Users [SOLVED] Video pixelation on PPC

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