i got the same problem after update from 10.10 to 11.04 ... black screen
after boot
quickfix:
1) press ctrl+alt+f1 and log in
2) delete file xorg.conf (sudo rm /etc/X11/xorg.conf)
3) create new empty xorg.conf (sudo nano /etc/X11/xorg.conf)
4) paste this in xorg.conf:
Section "Device"
Identifier "Configured Video Device"
Driver "vesa"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection
5) save xorg.conf
6) restart X (sudo service gdm restart)
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/776345
Title:
Ubuntu 11.04 blank screen on boot
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