linux-kernel - Re: Dell docking station & Dell Embedded Controller & PS/2 devices

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Message-ID: <20180507204851.6y4rplcka4inzhsl@pali>
Date:   Mon, 7 May 2018 22:48:51 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     Mario.Limonciello@...l.com
Cc:     dmitry.torokhov@...il.com, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: Dell docking station & Dell Embedded Controller & PS/2 devices

On Monday 07 May 2018 20:32:16 Mario.Limonciello@...l.com wrote:
> > The items that show up in this structure are supposed to be dynamic
> > values but static addresses.  I was asking to check before bootup in
> > case this was a problem of Linux caching SMBIOS table information once.
> > The values I was referring to might be for older generation dock though,
> > I'll see if I can find anything else you can check.
> 
> Can you check if structure type 08 or structure type 09 change based on
> dock being plugged in?  Again you might have to do it across a boot
> with/without dock in case of Linux kernel caches values.

The only difference is:

--- dmidecode_laptop_docked	2018-05-07 22:34:02.650325758 +0200
+++ dmidecode_laptop_undocked	2018-05-07 22:39:27.580306838 +0200
@@ -913,7 +913,7 @@ System Power Supply
 	Asset Tag: To Be Filled By O.E.M.
 	Model Part Number: To Be Filled By O.E.M.
 	Revision: To Be Filled By O.E.M.
-	Max Power Capacity: 90 W
+	Max Power Capacity: Unknown
 	Status: Present, OK
 	Type: Switching
 	Input Voltage Range Switching: Auto-switch

And this is in block Handle 0x003E, DMI type 39, 22 bytes - System Power
Supply. So looks like that DMI data are same.

-- 
Pali Rohár
pali.rohar@...il.com

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