Comment 28 for bug 1377878
Revision history for this message
| Boris Reinhard (reinhard-boris) wrote | #28 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
0e1f616
(Get the code!)
Hi Walter,
yep not default for every kind of ppc system, only for those specific G4 ibook's with the radeon 9200 variant, tho eMacs with those would also seems like a save bet-!? Sry I haven't yet gotten around to the FAQ/ Known Issues addition but I plan on spending some time on it tomorrow :)
For everyone else reading up on this I figured I should post our conclusion so far here as well:
1. yaboot params don't seem to stick/ carry over from live-boot initiated installations (intentionally?? for many mac users this would probably be unexpected and result in what I'd like to describe as "wtf I already had the correct params set why doesn't it work as expected" and be cause for confusion as the needed workarounds to "make it work" would not be actually used anymore while still assumed to be in use, so likely cause for seemingly "not working out of the box
Question:
what can be done about that or is pointing to more detailed Information on that and the actual params needed the only available course of action or can those params be set default out of the box on affected system configurations?
2. Radeon 9200/ RV 280 (M9+) chips on the PowerBook6,5 (ibook G4, 12' inch, 1.2 GHz) and also likely similar ibook and eMac Radeon 9000 range of chips for some reason won't work reliable on Radeon-KMS with AGP transfer enabled, so those need "radeon.agpmode=-1" no idea if it's a flaw in the way Apple implemented AGP on these ibooks or in combination with an expectation of the driver on how AGP is supposed to be implemented, or simply some bug, but it won't work at the moment and causes the freeze issue:
https:/
3. using the older framebuffer params in any way on top of things causes conflicts with KMS which even with "radeon.agpmode=-1" set would cause UI/ GUI issues like incomplete loading or nonfuctional UI/ GUI, so we additionally would need "video=ofonly" here and should not try to additionally use any combination of eg. "radeonfb" (which quite a few older workaround instructions might confusingly suggest and result in the user having any variation of params but not only the above 2 he or she would need to make it work)
4. with "video=ofonly radeon.agpmode=-1" those ibooks would boot and be useable prefectly fine BUT there will be "sluggish" feeling 2D/ gui/ windows moving and no accel at all which would be the result of not having Xorg properly configured/ detecting the chip and using the appropriate driver out of the box which also would have to be initiated manually at this point:
https:/
https:/
to fix from a booted Installation:
sudo service lightdm stop
sudo Xorg -configure
sudo mv xorg.conf.new /etc/X11/xorg.conf
sudo nano /etc/X11/xorg.conf
[Here some driver options could be set, eg. uncomment pageflip and set it to "True", save any edits and after that reboot]
sudo shutdown -r now
---------------
Grüße
boris