macbook pro 3 beeps on start black screen

Two hiccoughs along the way: First, when I tried to uninstall the Nvidia driver the first time, when I restarted I got the login screen (which was a good sign), but it quickly went black again. I then manually downloaded and installed the previous Nvidia driver for my graphics card (which at the time of this writing was 335.23, rather than the latest which was 337.88), and everything is now bueno! I booted in safe mode, uninstalled and deleted the Nvidia driver, disabled automatic driver installation, and restarted normally. Specifically, the posts by Dunsany and valkyr did the trick. Hardware UUID: B2D4B4B4-CD92-5C7A-BDC2-527D30DD8DF3įor anyone else who finds their way here like I did, this link did it for me: ead-if-you-39-re-having-black-screen-and-or-flickering-/ Please help!Ģ009 Macbook Pro, 3.06 GHz Intel 2 core, Max 10.6.8. I've looked at all the online solutions so far and have tried most of them without success. I suspect the Mac update wiped out my PC video drivers but can not think of a way to re-install?Ĭan see the PC volume from Mac side with files. Will not show up in safe mode, will not show when started from Windows 7 DVD. Since I updated the mac side my windows side now starts up with completely black screen - no prompt, nothing, Cap keys still light up as does mouse and DVD drive seems to run. My Macbook Pro has a black screen when running in Bootcamp Windows 7.

Macbook pro 3 beeps on start black screen