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Sometimes(rather many times), when I shutdown using the menu option >> Shutdown, the system hangs at a Purple screen with dots. I have waited for 10 mins, but then it becomes clear that i need to do a hard shutdown using power button.

I am using Ubuntu 64 bit AMD edition(12.04.1 LTS) on HP Proliant Microserver(N40L) with OEM hardware.

vikas112
  • 131

2 Answers2

1

From what I know, there is a bug with some graphic cards you can check here, I've tryed kubahaha's way and it worked for me:

Type in terminal:

  1. sudo gedit /etc/default/grub
  2. Find the line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
  3. Change it to: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=force"
  4. Save and close the file.
  5. Finally, in terminal: sudo update-grub

Similar questions with this bug:

0

Also, have you tried to see what happens when you press F8 when the purple screen appears? You will be able to see where it hangs.

Edit: this can be made into a comment if someone wishes.

prateek61
  • 203