jgv115 Posted April 30, 2010 Share Posted April 30, 2010 First of all these are my specs: CPU: Core i5 750 Mobo: Gigabyte GA-P55-UD4P GPU: Gigabyte ATI HD4850 I've been using 10.6.2 for around 1 month before the 10.6.3 release. Now that it is released I want to upgrade to it. I downloaded the installer and installed it over my 10.6.2 installation. When I rebooted, I got a black screen. I then tried to boot with -x, also black screen. I had no choice but to reinstall. For a brief moment reinstallation would result in black screen as well. I had to get my nvidia card to install then switch back to my HD4850. But anyway, Now I have a video issue, I can install SL (10.6) and run it but as soon as I download 10.6.3 and install it BAM black screen and I can't do anything! I'm using Tony's [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] CD and [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] (also from Tony). I also did a bit of searching (on this forums and on google) and found out that people have used the EVOenabler.kext and adding 0x94421002 to ATI4800Controller.kext in S/L/E. The problem with this is that I can't even get into OSX to edit the files! How am I supposed to do it? Can someone help me solve the black screen issue All answers are appreciated! P.S My 4850 is the dual DVI version with the zalman fan. Link to comment Share on other sites More sharing options...
imacken Posted April 30, 2010 Share Posted April 30, 2010 I can't help with your problem, but (and I know it doesn't help your position!) I cannot emphasise strongly enough the need to have a 'backup plan' exactly for this sort of occasion. I have a Leo and a Snow install to protect against these kind of problems. If one has an issue with updates then I can boot into the other to fix it. Sorry I can't help to resolve your black screen, but I'm sure someone else will soon. Link to comment Share on other sites More sharing options...
mac09hack Posted April 30, 2010 Share Posted April 30, 2010 First of all these are my specs: CPU: Core i5 750 Mobo: Gigabyte GA-P55-UD4P GPU: Gigabyte ATI HD4850 I've been using 10.6.2 for around 1 month before the 10.6.3 release. Now that it is released I want to upgrade to it. I downloaded the installer and installed it over my 10.6.2 installation. When I rebooted, I got a black screen. I then tried to boot with -x, also black screen. I had no choice but to reinstall. For a brief moment reinstallation would result in black screen as well. I had to get my nvidia card to install then switch back to my HD4850. But anyway, Now I have a video issue, I can install SL (10.6) and run it but as soon as I download 10.6.3 and install it BAM black screen and I can't do anything! I'm using Tony's [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] CD and [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] (also from Tony). I also did a bit of searching (on this forums and on google) and found out that people have used the EVOenabler.kext and adding 0x94421002 to ATI4800Controller.kext in S/L/E. The problem with this is that I can't even get into OSX to edit the files! How am I supposed to do it? Can someone help me solve the black screen issue All answers are appreciated! P.S My 4850 is the dual DVI version with the zalman fan. I was warned about using ATI video cards in a hack system. I built a Gigabyte EX58-Ud5 Intel i7 920 system with an Nvidia 9800GTX+ video card and hacked around for several months to finally find Kakewalk 2.1. I built a Flash drive with Snow 10.6 and the Kakewalk bootloader, etc and installed that Flash into a USB port on my PC and set the BIOS to load first from the USB drive. I let it go and when it finally restarted, all I need to do is remove the Flash drive and set the first boot back the loaded disk drive. pretty slick and simple. I then used the 10.6.3 Combo updater and every thing still works as planned. Link to comment Share on other sites More sharing options...
Hangten Posted May 1, 2010 Share Posted May 1, 2010 First of all these are my specs: CPU: Core i5 750 Mobo: Gigabyte GA-P55-UD4P GPU: Gigabyte ATI HD4850 I've been using 10.6.2 for around 1 month before the 10.6.3 release. Now that it is released I want to upgrade to it. I downloaded the installer and installed it over my 10.6.2 installation. When I rebooted, I got a black screen. I then tried to boot with -x, also black screen. I had no choice but to reinstall. For a brief moment reinstallation would result in black screen as well. I had to get my nvidia card to install then switch back to my HD4850. But anyway, Now I have a video issue, I can install SL (10.6) and run it but as soon as I download 10.6.3 and install it BAM black screen and I can't do anything! I'm using Tony's [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] CD and [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] (also from Tony). I also did a bit of searching (on this forums and on google) and found out that people have used the EVOenabler.kext and adding 0x94421002 to ATI4800Controller.kext in S/L/E. The problem with this is that I can't even get into OSX to edit the files! How am I supposed to do it? Can someone help me solve the black screen issue All answers are appreciated! P.S My 4850 is the dual DVI version with the zalman fan. Solution Click here If you have a Windows system us Transmac to adjust your Snow Leopard by adding -v -x to your com.apple.boot.plist setup so you can atleast boot into your system. Edit: yes you can also safe boot while typing in -x at the Chameleon boot Also you can use your DVI to VGA dongle one is reported to work and i can confirm this so try that first. Reboot untill you tried both DVI's with the VGA dongle. I did not have to boot in safe mode. Once in follow the thread and cross your fingers. Your replacing your kext and i included the working 10.6.2 so just install. Its worth a try. I can post step by step if your stuck so get back to this thread if your lost. Link to comment Share on other sites More sharing options...
jgv115 Posted May 1, 2010 Author Share Posted May 1, 2010 Anyway, I found the answer before you posted (thanks for help though). You have to get those three kexts for 10.6.2. They work fine on 10.6.3 Link to comment Share on other sites More sharing options...
Recommended Posts