Bug 6542

Summary: hal shows the wrong lid state after resume from hibernate
Product: hal Reporter: David Lowe <lowe>
Component: haldAssignee: David Zeuthen (not reading bugmail) <zeuthen>
Status: RESOLVED FIXED QA Contact:
Severity: major    
Priority: high CC: tmus
Version: unspecified   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description David Lowe 2006-04-10 00:01:30 UTC 
After a fresh hald start, acpi and hal agree on the lid state of my laptop

[root@trillian lowe]# lshal -l | grep button.state
  button.state.value = false  (bool)
[root@trillian lowe]# cat /proc/acpi/button/lid/LID/state
state:      open

However, after hibernating (by closing the lid) and resuming, they disagree
[root@trillian lowe]# lshal -l | grep button.state
  button.state.value = true  (bool)
[root@trillian lowe]# cat /proc/acpi/button/lid/LID/state
state:      open

I am using hal version 0.5.7 plus the patch for hal-system-power-hibernate that
rescans the button on resume. So rescanning isn't setting the correct state.

Restarting hald on resume returns the values to normal.

This is related to gnome-power-manager bug
http://bugzilla.gnome.org/show_bug.cgi?id=334220
Comment 1 Thomas M Steenholdt 2006-04-17 17:52:34 UTC 
I'm seing the exact same thing on my system and I know of a few other systems
that are hit by this bug as well (i don't know of any system that's not).

3rd party tools, like gnome-power-manager, that relies on this information from
hal can't help making bad decicions. So, whenever i unplug AC from my laptop to
move to another desk, my system is suspended because it thinks the lid is shut.
Comment 2 Richard Hughes 2006-06-05 03:21:27 UTC 
2006-04-24  Richard Hughes <richard@hughsie.com>

	* tools/hal-system-power-hibernate, tools/hal-system-power-suspend:
	Add --print-reply to dbus-send else the Rescan does not work.
	This should fix a whole load of bugs related to ACPI values on resume.

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