Running pcie_capability_clear_word with PCI_EXP_LNKCTL_ASPM_L0S|PCI_EXP_LNKCTL_ASPM_L1 indeed makes the link ASPM state switch to disabled, however as I see there is more than one call of pci_disable_link_state. If it does not work with ath5k then link control is supposedly broken for r8169, intel e1000 and some other drivers.
However, this bit from e1000 is interesting: #ifdef CONFIG_PCIEASPM static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state) { pci_disable_link_state_locked(pdev, state); } #else static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state) { ... do magic with pcie_capability_clear_word ... } #endif CONFIG_PCIEASPM=y in 3.8.0-12-generic I will test r8169 PCI-X device shortly to see whether it is also affected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1137513 Title: Wireless 168c:001c with ath5k on Acer Aspire One AOA150 download checksum fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1137513/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs