MacBook: Vertical lines or solid gray, white, or black screen after updating to Mac OS X 10.4.7

After updating to Mac OS X 10.4.7, the MacBook may show a solid grey, white, or black screen or a screen with vertical multi-colored lines.

This article has been archived and is no longer updated by Apple.

To resolve the issue temporarily, you may need to reset NVRAM. Once you can use the display again, download and install Mac OS X 10.4.8. You can use the Software Update feature of System Preferences, or download the Update from Apple Software Downloads.

If you have updated to Mac OS X 10.4.8 and the issue still seems to occur, you may need to reset NVRAM on your MacBook again.

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