Hi Rafael, I'm running into some issues with PCI D3 wakeup on the latest version of the Lynx Point chipset. I can give you the stepping and BIOS version privately if you need it. Basically, I think PMEs are being lost somewhere in the ACPI or PCI stack. I'm not sure how to further debug this issue, so I'm hoping you have some pointers. This is reproduced on the 3.7.1, 3.7.7, and 3.8.0 kernels. First, I go into powertop and basically change all the 'Bad' entries to 'Good', which turns on runtime PM for all PCI devices, bridges, and rootports. I have no USB devices plugged into the xHCI host, and I wait until the host is suspended, and the PCI device is in D3. Then I run: watch -n 1 'sudo lspci -vvv -s 00:14.0' When I plug in a USB 2.0 device to a USB 2.0 port, the hotplug event is lost. I can see from the lspci output that the Status line under the PM capabilities changes when I plug in the device. The PME- changes to PME+, which I assume means a PME happened. But the USB core's PCI resume functions are never called. Wakeup from D3 works fine on the previous generation chipset (Panther Point) on my Lenovo x230 laptop, so this makes me suspicious that it's a hardware or BIOS issue. I'll try updating my BIOS and seeing if that helps. Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
