Re: [PATCH] x86: add Dell OptiPlex 760 reboot quirk

From: Leann Ogasawara
Date: Sat Jan 30 2010 - 19:05:29 EST

On Wed, 2010-01-27 at 16:27 -0800, H. Peter Anvin wrote:
> On 01/27/2010 03:29 PM, Leann Ogasawara wrote:
> > Hi All,
> >
> > A bug reporter noted their Dell OptiPlex 760 hangs on reboot unless
> > reboot=bios is specified. They have confirmed the following reboot
> > quirk resolves the issue. Please consider applying for 2.6.33.
> >
> Could we find out if reboot=acpi works on this machine?

>From the bug reporter:

"It seems that reboot=acpi does not work.

I installed 2.6.33-rc6 (from today) and rebooted successfully 4 times
after booting with reboot=bios, like before. I then changed the boot
parameter to reboot=acpi. After booting with this the first time, the
computer came back up successfully after a reboot. The next time,
however, the computer didn't come back up.

Since I have moved to Norway and the two affected computers are located
in Canada I had to do this via ssh and playing with /etc/default/grub
and update-grub. I can't hit the power button or verify that it wasn't
something else that went wrong. I hope this testing is sufficient. If
necessary, I can try without any reboot option with 2.6.33-rc6 once
someone comes to work after the weekend and gives it a power cycle."

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at