Installation report for UNR 20090324 on Acer Aspire One

Michael Frey michael.frey at
Tue Mar 24 15:05:41 GMT 2009

Typically the lid switch is handled by the BIOS setting the correct GPIO
as a wakeup source.  Check to see if /proc/acpi/wakeup lists a lid
switch as enabled for S3.

If not --  this control is not exposed to ACPI, and is not controllable.
If yes -- you can toggle its function:

echo LID0 > /proc/acpi/wakeup


Matt Zimmerman wrote:
> On Tue, Mar 24, 2009 at 12:23:32PM +0100, Loïc Minier wrote:
>> On Tue, Mar 24, 2009, Matt Zimmerman wrote:
>>> One further issue: closing the lid correctly suspends the machine, but
>>> opening the lid doesn't resume it.  I have to press the power button.
>>> Is this a hardware limitation (seems unlikely) or a bug?
>>  I have the same issue with EeePC 701SD but didn't know whether the BIOS
>>  was expecting the user to press a key before resuming.
> Does it behave the same way with a different OS on it?  Should we open a bug
> report to track this?

More information about the ubuntu-devel mailing list