[Pkg-acpi-devel] Bug#752283: acpid: thinkpad t400s, suspend when LID closed stopped working

[Ted Felix]

On 06/22/2014 02:47 AM, Gijs Hillenius wrote:
>     Sometime following a recent update, closing the lid of this
>     Thinkpad T400s no longer suspends.

   This is not likely to be an acpid issue.  It could be a window 
manager issue, an acpi-support issue, or a kernel issue.  Here are some 
things to try:

1. Try using kacpimon to verify that lid close/open events are coming 
in.  See the man page for kacpimon.  If the events aren't coming in, 
you've got a kernel issue.

2. If you've got lid close/open events coming in, then you'll need to 
check and see if your window manager is responsible for handling lid 
open/close.  Some are, some aren't.  If yours is, and you've got it 
configured properly, then you may have a window manager issue.

3. Lastly, take a look in /etc/acpi/events (see the man page for acpid 
for more info).  Is there a lid closed configuration file in there (e.g. 
/etc/acpi/events/lidbtn)?  Is it properly connected to a script (e.g. 
/etc/acpi/lid.sh)?  Is that script working?  If there is a broken script 
or config file in here, then you've likely got an acpi-support issue.