Momentary Panic with Black Screen After Snow Leopard Upgrade - August 28, 2009
All is back to normal now, but on my first boot up after installing Mac OS X Snow Leopard, the screen of my Mac Book Pro was black. For some reason, the upgrade set my screen brightness all the way to zero and then the screen brightness keys (F1 and F2) would not respond for about 5 minutes after boot up. This seems to be a completely different quirk than a similar one I’ve seen with minor updates to 10.5. In that case, a black screen could generally be solved by powering down the Mac Book Pro and removing the battery for a few minutes–then booting back up.