Am 13.12.2012 09:45, schrieb Lan Tianyu: [snip] >>> I am curious about whether disabling usb device's wakeup rather than usb >>> hc's would make suspend work. Can you do a test? >>> >>> Go to /sys/bus/usb/devices/ and enter the usb 1,1 device >>> directory(normally it will be something like"1-1.1".) >>> run "echo disabled > power/wakeup". >> Are you sure the file is called 'wakeup' for the devices ? I have no >> such file in the power directory... > Oh. That means the device doesn't support wakeup function. > Non-wakeupable devices also will cause the issue. Now Confirm this is > hcd problem. > > I write a quirk patch. Can you test? Yes, that makes it work ! > I just find one MCP51 and two MCP79 OHCI id. Can you provide more buggy > hcd id via "lspci -nnvvv"? > Thanks. I have the MCP61 (rev. A2) with id 10de:03f1. Further NVIDIA OHCI HCD IDs can be found at http://openbenchmarking.org/linux/PCI/0c03. But I'm not sure that we should blacklist them all. Maybe this bug has been fixed in newer chipset revisions / generations ? Where did you get the ID for the MCP79 from ? Is it confirmed that this device still suffers from the same bug ? I also wonder if this could be an BIOS / ACPI issue. So far, all boards I've seen were form ASUSTeK (Octavio: A8N-VM, me: M2N-VM DH, and I remember having seen the same bug on another M2N board with MCP55 a while ago). Regards, Frank -- 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
