Solution for broken Leopard Graphics Update (black displays after wake)
Hello everybody,
good news for those of you encountering some troubles with the latest Leopard Graphics Update 1.0 which followed the Mac OS X 10.5.2 update.
The following solution is for those of you who encounter the phenomenon that the (main) display wouldn't turn on after waking your computer from sleep. I read many posts in which the users described that just the display was kind of dead, but that they could log in to the computer remotely via SSH or even connect to the machine using screen sharing. I had the absolutely identical problems until recently with my PM G4 MDD with NVidia GeForce 4600 Ti graphics card.
*WARNING: The following solution worked for ME and MY computer setup, but it should be likely that it will also work for you if you experienced the same problems as described above.*
Before you start the surgery, have the following tools at your hand:
a) Mac OS X 10.5 DVD (hacked or unhacked, it doesn't matter)
b) Nr 6 Torc screw driver (no, just kidding ... ;-))
c) Post-it and pen
d) Cup of coffee or tee at your liking
Here are the steps that lead to success, and you can try it exactly this way when you're on some kind of NVidia graphics platform as I am:
1. Run the System Profiler (in the Utilities folder) and click on "Extensions" in the "Software" tree.
2. Check which versions of the kernel extensions are loaded for your particular graphics card
HINT: If you run a NVidia card you are likely to find some kind of NVDAV?0Hal kext and the NVDAResman kext alongside with the GeForce kext.
3. Write down or remember the version numbers of these kernel extensions.
4. Now reboot your computer with your Mac OS X 10.5 DVD.
5. After having the installer loaded and choosing your preferred language, open Terminal from the Utilities menu.
6. Now type in the following lines:
cd /Volumes/Macintosh\ HD/System/Library/Extensions
mkdir backup
mv NVDA* backup
mv GeForce* backup
cp -R /System/Library/Extensions/NVDA* .
cp -R /System/Library/Extensions/GeForce* .
7. Quit the Terminal program and the Installer and to a restart.
There you go, after rebooting your computer you should be able to put it to sleep and wake it again with a fully functional display grinning at you.
If you use some kind of ATI graphics card, you can do the same steps, you just have to watch out for the corresponding kexts to move and copy from the DVD.
I hope this post is going to help some of you people out there. I wished Apple had tested their Leopard Graphics Update somewhat more thoroughly. My understanding is, as my investigation brought to broad day light, that the Leopard Graphics Update somehow came along with a set of older versions of kernel extensions (at least for the NVidia part).
I wish everybody happy computing with the otherwise great products of Apple & Friends.
Kind regards,
Mati
good news for those of you encountering some troubles with the latest Leopard Graphics Update 1.0 which followed the Mac OS X 10.5.2 update.
The following solution is for those of you who encounter the phenomenon that the (main) display wouldn't turn on after waking your computer from sleep. I read many posts in which the users described that just the display was kind of dead, but that they could log in to the computer remotely via SSH or even connect to the machine using screen sharing. I had the absolutely identical problems until recently with my PM G4 MDD with NVidia GeForce 4600 Ti graphics card.
*WARNING: The following solution worked for ME and MY computer setup, but it should be likely that it will also work for you if you experienced the same problems as described above.*
Before you start the surgery, have the following tools at your hand:
a) Mac OS X 10.5 DVD (hacked or unhacked, it doesn't matter)
b) Nr 6 Torc screw driver (no, just kidding ... ;-))
c) Post-it and pen
d) Cup of coffee or tee at your liking
Here are the steps that lead to success, and you can try it exactly this way when you're on some kind of NVidia graphics platform as I am:
1. Run the System Profiler (in the Utilities folder) and click on "Extensions" in the "Software" tree.
2. Check which versions of the kernel extensions are loaded for your particular graphics card
HINT: If you run a NVidia card you are likely to find some kind of NVDAV?0Hal kext and the NVDAResman kext alongside with the GeForce kext.
3. Write down or remember the version numbers of these kernel extensions.
4. Now reboot your computer with your Mac OS X 10.5 DVD.
5. After having the installer loaded and choosing your preferred language, open Terminal from the Utilities menu.
6. Now type in the following lines:
cd /Volumes/Macintosh\ HD/System/Library/Extensions
mkdir backup
mv NVDA* backup
mv GeForce* backup
cp -R /System/Library/Extensions/NVDA* .
cp -R /System/Library/Extensions/GeForce* .
7. Quit the Terminal program and the Installer and to a restart.
There you go, after rebooting your computer you should be able to put it to sleep and wake it again with a fully functional display grinning at you.
If you use some kind of ATI graphics card, you can do the same steps, you just have to watch out for the corresponding kexts to move and copy from the DVD.
I hope this post is going to help some of you people out there. I wished Apple had tested their Leopard Graphics Update somewhat more thoroughly. My understanding is, as my investigation brought to broad day light, that the Leopard Graphics Update somehow came along with a set of older versions of kernel extensions (at least for the NVidia part).
I wish everybody happy computing with the otherwise great products of Apple & Friends.
Kind regards,
Mati
iBook (stolen), PowerBook G4, PowerMac G4 MDD, Cube, eMac, iMac DV, Yosemithe, Mac OS X (10.5.2)
