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* Excessive power consumption on Sony VAIO VPCZ23A4R
@ 2013-01-06 12:07 Alexander E. Patrakov
  2013-01-06 14:18 ` Rafael J. Wysocki
  0 siblings, 1 reply; 4+ messages in thread
From: Alexander E. Patrakov @ 2013-01-06 12:07 UTC (permalink / raw)
  To: linux-acpi

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, 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?

-- 
Alexander E. Patrakov

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2013-01-07 11:04 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-01-06 12:07 Excessive power consumption on Sony VAIO VPCZ23A4R Alexander E. Patrakov
2013-01-06 14:18 ` Rafael J. Wysocki
2013-01-06 14:26   ` Alexander E. Patrakov
2013-01-07 11:04   ` Alexander E. Patrakov

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