Ubuntu
linux package

  1. Bug #1098216
  2. Comment #138

Comment 138 for bug 1098216

Revision history for this message
In , daniel.m.kao (daniel.m.kao-linux-kernel-bugs) wrote :

I have done a git bisect and found the offending commit:
commit a57f7f9175b8ccbc9df83ac13860488913115de4
Author: Bob Moore <email address hidden>
Date: Fri Aug 17 10:55:02 2012 +0800

    ACPICA: Add Windows8/Server2012 string for _OSI method.

    This change adds a new _OSI string, "Windows 2012" for both Windows 8
    and Windows Server 2012.

    From Microsoft document "How to Identify the Windows Version in ACPI
    by Using _OSI", July 13, 2012.

    Signed-off-by: Bob Moore <email address hidden>
    Signed-off-by: Feng Tang <email address hidden>
    Signed-off-by: Len Brown <email address hidden>

Reverting this fixes the issue for me on ThinkPad X230.