Black screen 10.04
I. Issue: Black screen after Ubuntu splash screen Ubuntu documentation for this issue is here.
II. Issue: Black screen after post splash but before Ubuntu splash screen: Workaround to a problem with an apparently similar symptom is here. this workaround is not yet tested
III. If you are experiencing a white screen, start here.
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- remove "quiet splash" from the kernel line in grub and try booting
- add init=/bin/bash to force the kerenel to drop to a root shell before starting any graphical changes. From here you should be able to check logs, and try various other things to narrow down the problem. (protip: this is also how you reset a password even if root has a password)
- adding vga=773 to the kernel line will force it to load in 1024x768, or 775 for 1280x1024. These may help with some issues where the system simply does not detect a proper resolution.