kgordon420 at gmail.com
Mon Aug 27 08:21:33 EDT 2012
On Mon, Aug 27, 2012 at 1:42 AM, James Cameron <quozl at laptop.org> wrote:
> Q2F12 added support for automatic power down if lid is closed while at
> ok prompt, per ticket #11095, svn 2991. If you have been using
> previous firmware, you may never have seen this message.
> It has been a feature of XO-1.5 and XO-1.75 already.
> On XO-1, the lid switch is wired to the CS5536 companion chip, as well
> as to the the embedded controller. Open Firmware is reading from the
> GPIO pin array in the CS5536. Hal observed a confused embedded
> controller or battery error may trigger this issue.
> Kevin, Robert, please remove the external power, and the main battery,
> wait ten seconds, then reinsert both, and see if the problem persists.
Just a reminder this lid message only appears upon entering firmware after
a reboot from linux. Doesn't happen on entering "reboot" from firmware or
a cold start. Noted one other "symptom": when I do the reboot from
firmware, I do hear a little 'click' as the battery LED flashes, I don't
hear that click on the reboot from Linux. It occurs whether doing a
restart from the GUI on Linux or entering "reboot" from terminal.
> If it does, please get to the ok prompt, type lid-off and press enter
> (to stop the timer), then test the lid switch like this:
> ok lid? . cr d# 500 ms many
After rebooting from Linux seeing the symptom and entering lid-off after
entering the above command, saw
After rebooting from firmware, and not seeing the symprom, and entering teh
above command, saw
At no time during this whole process was the lid ever closed.
> This will print ffffffff when the lid switch is considered closed, and
> 0 when the lid switch is considered open.
> Waving a magnet against the front bezel above the microphone is a
> useful way to test the switch without having to close the laptop. The
> switch works best with the north and south poles of the magnet
> pointing left-right or right-left. You'll soon learn which way works;
> I don't have a labelled test magnet here, I just know it works only
> one way.
I'll search for a magnet; dont have one at my desk.
> The case magnet is to the left of the touchpad. Drag a USB drive over
> there to find it; a typical USB connector will be attracted.
> James Cameron
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