Nolira Posted July 29, 2012 Share Posted July 29, 2012 Hello. I have a trouble with this card: http://www.sapphiret...sn=&lid=1&leg=0 In ML I can't change the screen resolution. Dashboard and other applications have graphical glitches with slowdowns. Please help! Tell me all the way to get to work the card with ML. Thanks! Link to comment Share on other sites More sharing options...
nyolc8 Posted July 29, 2012 Share Posted July 29, 2012 Try this: Exotic patch Link to comment Share on other sites More sharing options...
Nolira Posted July 29, 2012 Author Share Posted July 29, 2012 Thanks, but it didn't work I still can't change the resolution and the glitches have not disappeared. But now "System Report" does not say "Not loaded kexts", but the memory size specified the same: 3 MB instead of 512. Link to comment Share on other sites More sharing options...
TheRacerMaster Posted July 29, 2012 Share Posted July 29, 2012 Try GraphicsEnabler=Yes at the bootup screen. Link to comment Share on other sites More sharing options...
joaquinmik Posted July 29, 2012 Share Posted July 29, 2012 Im having the same problem as Nolira, and using "GraphicsEnabler=Yes" freezes the system at boot. Checked the verbose mode and it just freezes at random line, no signs of error or graphics related. Disabling GraphicsEnabler makes the system to boot, but the card still unrecognized and kexts unloaded... Link to comment Share on other sites More sharing options...
bignuttz Posted July 30, 2012 Share Posted July 30, 2012 I am not sure which brand of Radeon 4850 I have, but what I did to get it working was went to /System/Library/Extensions/ATI4800Controller.kext. I right clicked and went to show package contents. I then went to the contents folder and then opened info.plist. I added the device ID from my card. After saving the kext and rebooting I can select my resolution. I am using Mountain Lion that I downloaded from the app store. I have an Asus P6T Deluxe. Link to comment Share on other sites More sharing options...
Nolira Posted July 30, 2012 Author Share Posted July 30, 2012 In both kexts (ATI4800Controller.kext & ATIRadeonX2000.kext) already have the correct deviceID in IOPCIMatch section. "GraphicsEnabler = Yes" is set to begin with. Problem not solved ): Link to comment Share on other sites More sharing options...
joaquinmik Posted July 31, 2012 Share Posted July 31, 2012 I've been looking for a workaround, and found out that after deleting any kext with "ATI" or "AMD" from /S/L/Extensions and /Extra plus deleting the DSDT file, the system still does not boot with "GraphicsEnabler=Yes", justs hangs during the grey apple and rotating circle, or in verbose mode, no KP or errors... Link to comment Share on other sites More sharing options...
joaquinmik Posted August 11, 2012 Share Posted August 11, 2012 YES!, I'm so excited finally getting this card working on OS X Mountain Lion, now running at 1080p with Quartz Extreme and Core Image. The funny thing is that I was just a pair of lines away from making it work. The procedure was this: - Installed OS X ML using Kakewalk, just make sure to use Chameleon bootloader. - Replace ATI4800Controller.kext and ATIRadeonX2000.kext with the Exotic ones from here: http://www.osx86.net...do=file&id=2900 - Edit org.chameleon.boot.plist adding the following lines: <key>AtiConfig</key> <string>Motmot</string> <key>GraphicsEnabler</key> <string>Yes</string> -Reboot and should boot at native screen resolution working. Hope it works for you! Link to comment Share on other sites More sharing options...
iKai Posted December 26, 2012 Share Posted December 26, 2012 work dualmonitoring with this workaround? Link to comment Share on other sites More sharing options...
Recommended Posts