scorcho Posted August 26, 2009 Share Posted August 26, 2009 Apropos this thread - http://www.insanelymac.com/forum/index.php?showtopic=181405 It seems as if getting a working 4850 on 10.6 is a bit more involved that Netkas' original suggestion to edit a couple of .kexts. It took a while but there appears 3 ways to get a 4850 working on Snow Leopard. If one option doesn't work for you, try the other. For single use you will still need a DVI->VGA adapter in the extra slot, and I have yet to test dual DVI. I haven't tested this for x64. 1. Use a gfx-string with your device's appropriate pciroot location, along with ATIRNDRV.kext and ATINDRV.kext into S/L/E. you can get those two .kext from the 10.5.8 combo install. if you get a shaky/jumpy screen, try the 2nd option 2. Following option 1, use a gfx-string, the two .kexts, but also install evoenabler.kext into S/L/E. 3. Install ATIRNDRV.kext, ATINDRV.kext and evoenabler.kext into S/L/E. You will also need to edit ATI4800Controller.kext to include the 4850's device ID number (0×94421002). In lieu of editing the .kext you can instead install netkas' 48x0 package, which also includes the ID numbers for the entire 48x0 family. Hope this helps some of you! Link to comment https://www.insanelymac.com/forum/topic/181949-ati-4850-in-sl-works/ Share on other sites More sharing options...
the_29 Posted August 27, 2009 Share Posted August 27, 2009 Even when i want to use DVI i have to use a DVI->VGA adapter when i just want to use one display? Link to comment https://www.insanelymac.com/forum/topic/181949-ati-4850-in-sl-works/#findComment-1237326 Share on other sites More sharing options...
mustiCas Posted August 28, 2009 Share Posted August 28, 2009 Could you please test dual screen having 1xDVI + 1xDVI->VGA. Thank you. Link to comment https://www.insanelymac.com/forum/topic/181949-ati-4850-in-sl-works/#findComment-1239141 Share on other sites More sharing options...
Gymnae Posted August 28, 2009 Share Posted August 28, 2009 I can also report succes. I have it in my DSDT (at least I think, I wrote Motmot and assigned it the correct PCI slot) and inserted the Dev-ID into the 4800 kext, but that didn't help the weird distorted graphics. So I installed ATINDRV and ATIRNDRV - then it works flawless, but only in 32bit. Judging from the temp of my GPU, I take it PowerPlay works now too without jumpy screen. Pretty good. Sleep also works, having SleepEnabler and OpenHaltRestart installed (besides the two ATI kexts I left the S/L/E untouched otherwise) Link to comment https://www.insanelymac.com/forum/topic/181949-ati-4850-in-sl-works/#findComment-1239640 Share on other sites More sharing options...
FierceDeityLink1 Posted August 29, 2009 Share Posted August 29, 2009 Could you please test dual screen having 1xDVI + 1xDVI->VGA.Thank you. Yep works fine here with a VGA FW900 and DVI AL2216W. Link to comment https://www.insanelymac.com/forum/topic/181949-ati-4850-in-sl-works/#findComment-1241394 Share on other sites More sharing options...
robyrocker89 Posted August 30, 2009 Share Posted August 30, 2009 work only for DVI+DVI output...??? I've hd4850 with DVi+VGA+HDMI... work on SL??? Link to comment https://www.insanelymac.com/forum/topic/181949-ati-4850-in-sl-works/#findComment-1241849 Share on other sites More sharing options...
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