Windows 7 Plugged in Not Charging (HP DM1)

TLDR; Ubuntu/OpenSUSE ftw

I got a netbook free, because it had some flaws, including  a charging issue, being plugged in but not charging.

The symptoms where that if the battery was allow to completely discharge, such as sleeping in a bag for a few days, it would allow ac operation but not charge.

I tested different batteries with the same outcome. Other similar laptops in the fleet did not have this issue.

I found that this could clear it up sometimes.
Disconnect AC
Shutdown
Remove battery
Connect AC
Startup
Under the Batteries category, right-click all of the Microsoft ACPI Compliant Control Method Battery listings, and select Uninstall (it’s ok if you only have 1).
Shutdown
Disconnect AC
Insert battery
Connect AC
Startup

http://jeffreypalermo.com/blog/plugged-in-not-charging-windows-7-solution/

But it turns out, the real reason that it wasn't a big problem for me is that I swap out between a Linux HD and a Windows HD.

Yup, charges just fine under OpenSUSE or Ubuntu.

Yup, not necessarily a hardware problem, but a Windows driver issue.

Yup, and people still talk about Linux being difficult and having driver issues.