Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933416AbZKAAGf (ORCPT ); Sat, 31 Oct 2009 20:06:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933360AbZKAAGe (ORCPT ); Sat, 31 Oct 2009 20:06:34 -0400 Received: from casper.infradead.org ([85.118.1.10]:55682 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933351AbZKAAGe (ORCPT ); Sat, 31 Oct 2009 20:06:34 -0400 Date: Sat, 31 Oct 2009 17:07:49 -0700 From: Arjan van de Ven To: Justin Piszcz Cc: Alan Stern , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, nut-upsuser@lists.alioth.debian.org, bruce.w.allan@intel.com, Alan Piszcz Subject: Re: 2.6.31.4: Intel P55 Chipset BUG [usbhid-raw/devices/broken?] [tested 3 different UPS'] Message-ID: <20091031170749.4c2470ff@infradead.org> In-Reply-To: References: Organization: Intel X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.6; i586-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1241 Lines: 32 On Sat, 31 Oct 2009 19:43:38 -0400 (EDT) Justin Piszcz 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-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/