https://bugzilla.kernel.org/show_bug.cgi?id=44161





--- Comment #36 from Sebastian Riemer <sebastian.rie...@profitbricks.com>  
2012-10-30 17:01:06 ---
It seems like everything related to the embedded controller "Device (H_EC)"
doesn't work. Power source "ADP1", the battery "BAT1" and "LID0" are connected
to it. Bug 45461 is related. LID0 should return the 1-bit value "LIDS" from the
Controller registers with method "_LID". This method is described in the ACPI
Spec: http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf .

The "_LID" method is only called by the following: "Notify (LID0, 0x80)" and
this is part of "Method (_Q5E, 0, NotSerialized)" as well as "Method (_Q5F, 0,
NotSerialized)" which are embedded controller queries.

So if nothing queries that embedded controller, then it can't be reported if
the lid is closed or not. Perhaps, something has to activate that embedded
Controller first.

It is the Intel HM76 chipset.

http://www.intel.com/content/www/us/en/chipsets/performance-chipsets/mobile-chipset-hm76.html

They have an OEM manual where they describe their embedded controller.

http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/7-series-chipset-pch-datasheet.pdf

Look at page 197. The EC is connected to the SMBus via "SMLink1".

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.

------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_sfd2d_oct
_______________________________________________
acpi-bugzilla mailing list
acpi-bugzilla@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla

Reply via email to