sorry for not posting back yesterday, but after numerous OSX installations/reconfigurations I am back in ubuntu - here is what happened : ATI Mobility RADEON HD4650 PCIexpress 1024MB dedicated Vram ID 0x9480
( Satellite L500 )
PC EFI 10.6, Graphics Enabler = N
O , SMBIOS.plist = MacBookPro4,1 ( second attempt : iMac11,1)
installed 10.6.0, upgraded to 10.6.6 via offline combo update. VANILLA Apple kernel
:1. on first boot using only stock kexts 1024x768 vesa ( before always no screen at all , )2. installed RadeonHD.kext for 10.6x,
set in plist HWcursor to false and lowpowermode to true .
repair permissions, mkext, rebooted : correct resolution and Display can be calibrated.3. System Profiler shows HD4650 Mobility, BUT says 256MB Vram instead of 1GB
Kexts loaded successfully per Systemprofiler :
ATIRadeonX2000.kext and its bundlesHere is what does not work :QTX:
Movies not play ( mp4s ), can flip through them, trimm them but they do not play.Preview.app
: PDFs load with annotations and all the features, BUT JPGs don't.DVDPlayer :
No. ( "Videoerror")FrontRow :
No. ( black screen must be Control+Q /Esc to get back )ScreenSavers
: No. ("flurry" only - and obviously this is software rendered )PhotoBooth :
Loads, but the "Effects" Window is only black, so is the rest of the app, although I can operate it..
So .. all that above is due to RadeonHD.kext being used instead of the real ATIFramebuffer,
Maybe useful Sidenote :
Note1) ATI4600**controller.kext :
after putting in my ID i could forcefully kextload it while still running via RadeonHD.kext , but on the next boot no screen cometh up with both in S/L/E. - had to remove ATI46xxx.kext . When removing RadeonHD.kext instead, boot screen hangs at the LAN IP AutoDHCP screen forever, no GUI cometh up.Note2)
"GraphicsEnabler= Yes" leads to corrupted screen.Note3)
Powermanagement of the GraphicsCard ( constant fan running ) seems to be controlled by 2 kexts, one of them beginning with (Apple)GraphicsController**.kext, inside the plist I found entries for different speed-steppings and thermal zone, and they depend on what Mac Model your SMBIOS.plist is showing ( i.e. what OSX thinks that it runs on ) -- these kexts seem to be realted to all NVDA/GeForce/ATI/AppleIntelGM kexts ( i.e. they work together ? )
So this is a bit of progress, but only that some of Apples own kexts now load. BUT THERE IS NO 3D. still
I have even replaced my Intel Wifi5100 with a BCM4300 card.. its only the damn GPU which makes this Laptop non-OSX-ready..
So, as much as I would liked to tinker more - I need my puter today for work, so ubuntu for today.. maybe some clever one finds a way .. I am more then willing to always try ..