On Sunday, January 06, 2013 06:07:53 PM Alexander E. Patrakov wrote: > Hello. > > I have a Sony VAIO VPCZ23A4R laptop. In Windows 7, it has a battery > life of 7 hours (but now I have only Gentoo Linux on my SSD). In > Gentoo Linux (with kernel 3.7.1), the battery lasts only 4-5 hours. I > guessed that the problem can be related to ASPM, Most likely that's not the case. I suppose that the graphics power management is more aggressive on Windows and that depends on the graphics driver. > and booted the laptop > with the "pcie_aspm=force" kernel parameter. Result: > > [ 0.709517] \_SB_.PCI0:_OSC invalid UUID > [ 0.709518] _OSC request data:1 1f 1f > [ 0.709523] pci0000:00: ACPI _OSC support notification failed, > disabling PCIe ASPM > [ 0.709524] pci0000:00: Unable to request _OSC control (_OSC > support mask: 0x08) > > acpidump output is available at > https://bugs.freedesktop.org/attachment.cgi?id=65558 > > What else do I need to send you in order to debug and eliminate the problem? Can you please post the output of dmesg without the pcie_aspm=force argument? Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
