https://bugzilla.kernel.org/show_bug.cgi?id=36932
deepre...@gmail.com changed:
What |Removed |Added
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CC| |deepre...@gmail.com
--- Comment #25 from deepre...@gmail.com 2012-08-27 14:55:26 ---
Same problem also on kernel 3.4.9-gentoo.
The relevant line in dmesg are
[ 0.340807] pci0000:00: Requesting ACPI _OSC control (0x15)
[ 0.340814] pci0000:00: ACPI _OSC request failed (AE_NOT_FOUND), returned
control mask: 0x15
[ 0.340818] ACPI _OSC control for PCIe not granted, disabling ASPM
I do not know if it is relevant for the problem, but in dmesg appear also the
following warning about ACPI:
ACPI Warning: Optional field Pm2ControlBlock has zero address or length:
0x0000000000000000/0x1 (20120320/tbfadt-579)
Adding pcie_aspm=force on kernel command line does not solve the problem, since
the aspm will be disabled later during the boot (with the message above).
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