Return-path: Received: from mail-lpp01m010-f46.google.com ([209.85.215.46]:53792 "EHLO mail-lpp01m010-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756091Ab2EBAAh (ORCPT ); Tue, 1 May 2012 20:00:37 -0400 Received: by lahj13 with SMTP id j13so42537lah.19 for ; Tue, 01 May 2012 17:00:36 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: <4F9BFA14.3070008@lwfinger.net> <4F9DD22F.8010305@lwfinger.net> <4F9DE46E.6030103@lwfinger.net> <4F9DFF0A.7080604@lwfinger.net> <20120430120037.GG9863@alittletooquiet.net> <4F9F55F9.3090800@lwfinger.net> <4F9F6B67.5000400@lwfinger.net> <4F9FF3D3.1020006@lwfinger.net> From: Julian Calaby Date: Wed, 2 May 2012 10:00:16 +1000 Message-ID: (sfid-20120502_020042_105235_86B6A258) Subject: Re: rtl8192ce makes keyboard repeat and mouse freeze To: simple w8 Cc: Larry Finger , Forest Bond , wireless Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi, On Wed, May 2, 2012 at 1:49 AM, simple w8 wrote: > But isnt strange that the wifi driver can interfere in the keyboard > when typing? and also be capable to interfere with the pointer device? It is very strange. I've had it happen to me before with a RAlink wireless card. >From the behaviour, I'd expect it to be some form of misconfiguration of the interrupts on your system, (i.e. keyboard / mouse interrupts are being delayed / dropped) this could be caused by: - the drivers not setting them up correctly for *your particular system*, - your hardware being mis-configured or damaged - ACPI not passing the correct data to Linux - or some combination of all the above. In my case, it was definitely an issue with the wireless card's driver, however that doesn't mean that it's the same for you. It's simply impossible to duplicate these sorts of issues without the exact system that has the problem, so unless someone else has an identical system and is experiencing this exact problem, only you will be able to debug this. Given that there are many people out there with working Realtek wireless cards who are not experiencing this problem, it's unlikely that this is an issue with that particular driver. Also, there are many people (myself included) who use Microsoft hardware products with their Linux computers without incident, so it is unlikely to be related to the vendor of your keyboard / mouse. To debug this, the first thing I'd do is read through your entire dmesg output from a clean boot that's exhibiting these symptoms and see if Linux is complaining about anything or if there are any errors. Following up on any errors would probably be a good place to start. If there is some form of misconfiguration of your hardware, it is likely to be listed there, and following up on that would be another good thing to do. If there aren't any errors or warnings, the next thing I'd check whether the Realtek card and the keyboard / mice controllers (USB host or PS/2 port or whatever) are sharing any hardware resources. If they are, you may be able to fix your system by convincing your BIOS to let them have their own stuff. Another thing to look at is if there are any changes to the resources your BIOS gives various devices when the system has the card and when it doesn't, this may point you in the direction of a different driver that has issues. (saving dmesgs, stripping out the timestamps and diffing them is a good way to find issues like this) That's about the limit of my knowledge on this, but following up on any errors or warnings in the dmesg output and talking to the maintainers of any relevant hardware (or the subsystems it's attached to) would be a good start. Thanks, -- Julian Calaby Email: julian.calaby@gmail.com Profile: http://www.google.com/profiles/julian.calaby/ .Plan: http://sites.google.com/site/juliancalaby/