From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Lincoln Baxter, III" Subject: Re: HP nc6400 v.03 or v.05 laptop ACPI fails after reboot, works again after booting windows Date: Fri, 15 Dec 2006 08:41:27 -0500 Message-ID: <4582A607.8040302@gmail.com> References: <457F37C0.3090003@gmail.com> <1165966936.29844.37.camel@pcjc2lap> <457FB1A1.2030602@gmail.com> <1166012707.22903.4.camel@pcjc2lap> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from wr-out-0506.google.com ([64.233.184.231]:32998 "EHLO wr-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752130AbWLONlb (ORCPT ); Fri, 15 Dec 2006 08:41:31 -0500 Received: by wr-out-0506.google.com with SMTP id i7so591143wra for ; Fri, 15 Dec 2006 05:41:30 -0800 (PST) In-Reply-To: <1166012707.22903.4.camel@pcjc2lap> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Peter Clifton Cc: linux-acpi@vger.kernel.org > It was suggested to me to open a kernel bug (possibly starting under > ACPI), however I never got to it.. I don't know where kernel bugs are > reported officially, and was busy at the time. (still am). I do try and > reply to others with the same problems though... finding the webpage > which suggested that fix was not trivial! > > My lid switch is just above the keyboard, on the right hand side of the > left hand screen hinge. It is just a tiny piece of plastic protruding > from the case. Push it, and the screen goes off. Hold it, and wiggle the > mouse (touchpad), and the naughty screen comes back on. > > Most importantly for me, the workaround brings the max CPU speed > available with speed step back to what it is supposed to be on my > laptop, and the BIOS actually boots much faster. > > Peter C. > > > Well. I just tested the lid, and I don't seem to have that problem. I also don't think I have an external lid-switch, because I really can't find it anywhere... anyway. Your workaround got me past the buggy/slow booting; however, there's another problem that I've found that is just about as annoying. And I'm hoping that someone will have an idea. When I boot the computer with ACPI support, there's an audible hum that comes from the CPU whenever the processor is idle. This hum does not occur in windows, and when I boot with "noapic pci=noapic acpi=off" in the kernel options, the sound is gone. Does anyone have any ideas how I can fix this? Is it possible to load ACPI as a module? Should I play around with which ACPI features are compiled in, and see which one, if it is just one, is the kicker? Thanks again for all of your help, Lincoln