important

I've a rev 1 board, and was using the RTGMac_v203 realtek drivers.

they cause failures to wake from sleep

I finally tracked down black-screen on wake issues. It was a repeatable error whenever I was using more than 2 gig ram and network activity.

Specifically opening 20 avi off a server, and loading 80 tabs in safari would cause the failure every time.

I reverted to the built in snow leopard drivers* and no problems now (except no bonjour). If you do a bit of googling you'll find other people mentioning power management issues with the realtek drivers and SL, as the drivers were built for 10.4.


* the realtek installer/uninstall script has a serious problem! when it installs, it deletes the apple realtek driver kext, and when it uninstalls it removes the realtek one. So you're left with no driver at all.

So to restore, you need /system/library/extensions/IONetworkingFamily.kext from an untouched SL install/disk. Replace it, repair disk permissions, "sudo touch /System/Library/Extensions" wait a bit for the kexts to rebuild, and then reboot.