12.10 will not shut down

Posted by rahi on Ask Ubuntu See other posts from Ask Ubuntu or by rahi
Published on 2012-10-29T14:57:22Z Indexed on 2012/10/30 5:21 UTC
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I recently installed 12.04 on an hp spectre xt ultrabook. I installed 12.04 from a USB. When the install was complete, and the computer restarted, I got a blank screen.

After some searching, I found that I had to choose "acpi=off" during the installation, which now shows up in the grub screen.

Once I was on 12.04, I upgraded to 12.10.

The issue now is that when I hit shutdown, the computer hangs on a purple shutdown screen. Usually, at this point, I press the power button on the machine to completely power off the machine.

I am new to ubuntu, and would appreciate the help. Thanks.

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