@Miroslav,

Thanks for the ACPI data, it was most helpful to bring some insight.

the IA-PC boot flags does state that "PCIe ASPM is not supported":

[0x06d 0109  2]             IA-PC Boot Flags (see below): 0x0000
                           Legacy Devices Supported (V2): 0x0
                      8042 present on ports 60/64 (V2): 0x0
                                            VGA Not Present (V4): 0x0
                                        MSI Not Supported (V4): 0x0
                           PCIe ASPM Not supported (V4): 0x0

and this apparently is what Windows 7 seems to follow
(http://www.microsoft.com/whdc/system/bus/pci/aspm.mspx).   So it
appears that the Linux aspm driver is not taking this advice into
consideration and hence we get the problem.  Disabling ASPM via the boot
option "pcie_aspm=off" hence makes sense.  I will open a discussion with
the Intel developers and see what they make of this.

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https://bugs.launchpad.net/bugs/656745

Title:
  notebook always crashes if on battery (dell vostro 3700 and others)

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