From mboxrd@z Thu Jan 1 00:00:00 1970 From: Igor Murzov Subject: [RFH] Lenovo Ideapad U455 touchpad not always works Date: Mon, 30 Jan 2012 04:51:43 +0400 Message-ID: <20120130045143.5d1be121@garik> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from mail-bk0-f46.google.com ([209.85.214.46]:47051 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751834Ab2A3Avx (ORCPT ); Sun, 29 Jan 2012 19:51:53 -0500 Received: by bkas6 with SMTP id s6so2749333bka.19 for ; Sun, 29 Jan 2012 16:51:51 -0800 (PST) Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: linux-input@vger.kernel.org Hi, list. I have a problem with my touchpad. It works fine, but not at every boot. More specifically, AUX port not always initialized properly: ----------------------------------------- i8042: PNP: PS/2 Controller [PNP0303:KBC0,PNP0f13:PS2M] at 0x60,0x64 irq 1,12 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 # <-- this line is not always appear in dmesg output ----------------------------------------- Here are two dmesg outputs: http://paste.pro/5141560 <-- this time touchpad worked fine http://paste.pro/5141561 <-- and this time touchpad was not working I saw in the git logs that many laptops require some workaround to make their touchpad work. I've tried i8042.notimeout, i8042.nomux and i8042.noloop, but this didn't solve the issue. I wonder is there any way to detect which options should I use to make touchpad work, other than rebooting system countless number of times? Output of lshw: http://paste.pro/5141562 -- Igor