On Sat, 31 Oct 2009 19:43:38 -0400 (EDT) Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> wrote: > >> Problem appears to be the Intel P55KG / USB Chipset in the way > >> that it handles usbhid-raw devices as CD/USB sticks/kbd/mouse/etc > >> do not appear to be affected. > >> > >> So far all other USB devices work fine, with the exception of > >> UPS', I have tested two APC 1500VA (one an RS the other an XS), in > >> addition I also have a 'BELKIN 1200VA UPS with AVR' from a long > >> time ago, the same problem occurs. > > > > ... > > > >> A bit frustrated, I popped in a PCI card with 4 external USBs, and > >> now no more errors: just as a wild guess; does it go away if you disable CONFIG_USB_SUSPEND ? also, google suggests that your bios may not have c-states enabled; if so, enabling those in the bios might also be a good idea -- Arjan van de Ven Intel Open Source Technology CentreCONFIG_USB_SUSPEND For development, discussion and tips for power savings,visit http://www.lesswatts.org -- 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