Return-path: Received: from mail-lb0-f181.google.com ([209.85.217.181]:38747 "EHLO mail-lb0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750974AbaKGIwH convert rfc822-to-8bit (ORCPT ); Fri, 7 Nov 2014 03:52:07 -0500 Received: by mail-lb0-f181.google.com with SMTP id l4so2286657lbv.26 for ; Fri, 07 Nov 2014 00:52:04 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <20141106135217.11DF985248@smtp04.mail.de> References: <20141106135217.11DF985248@smtp04.mail.de> Date: Fri, 7 Nov 2014 10:52:04 +0200 Message-ID: (sfid-20141107_095211_309067_8AE83ECC) Subject: Re: Problem with Intel Wireless-N 7260 and Ubuntu 14.10 From: Emmanuel Grumbach To: =?UTF-8?Q?Henry_W=C3=BCnsche?= Cc: linux-wireless Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Nov 6, 2014 at 3:52 PM, Henry Wünsche wrote: > Hello! > I got a problem with an Lenovo U330p botebook and it's build in Intel > Wireless-N 7260 in combination with Ubuntu 14.10 . > If the WiFi card is running in N-mode after a few minutes I am no more able > to ping my router or visit any website. If the N-mode is disabled via the > command "options iwlwifi 11n_disable=1" in "/etc/modprobe.d/iwlwifi.conf" > it works for me. Can you please enable 11n and record tracing while you can't ping your router? sudo trace-cmd record -e iwlwifi -e mac80211 -e cfg80211 -e iwlwifi_msg This will create a trace.dat file which you can send. Take into account this kind of system issues are very hard to debug remotely, so.... I am not sure I'll be able to do a lot for you. And I'll be travelling to San Francisco the next two weeks, so I will have very little time for that. > > I also noticed that the wifi range with that wireless card on Ubuntu is > terrible. I dual boot with Windows 8.1 and there wifi range is much better > and even N-mode works. > > after booting Ubuntu (mainline kernel 3.17.1) dmesg shows this: > > [ 4.133139] iwlwifi 0000:02:00.0: irq 49 for MSI/MSI-X > [ 4.133484] iwlwifi 0000:02:00.0: Direct firmware load for > iwlwifi-7260-10.ucode failed with error -2 > [ 4.133487] iwlwifi 0000:02:00.0: Falling back to user helper > [ 4.253735] iwlwifi 0000:02:00.0: loaded firmware version 25.222.9.0 > op_mode iwlmvm > [ 5.816514] iwlwifi 0000:02:00.0: Detected Intel(R) Wireless N 7260, > REV=0x144 > [ 5.816562] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S > [ 5.816777] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S > [ 6.086593] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S > [ 6.086802] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S > [ 7.167833] iwlwifi 0000:02:00.0: Time Event end notification failure > > the mentioned firmware iwlwifi-7260-10.ucode isn't installed, but > iwlwifi-7260-7.ucode > iwlwifi-7260-8.ucode > iwlwifi-7260-9.ucode > > are. > > Is there any solution for this problem or any fix? > I read that iwlwifi-7260-10.ucode isn't atable yet, so I haven't installed > it at the moment. > > Thanks in advance and best regards, > > Henry Wünsche