From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from fg-out-1718.google.com ([72.14.220.159]:22980 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755201AbZIAVjm convert rfc822-to-8bit (ORCPT ); Tue, 1 Sep 2009 17:39:42 -0400 Received: by fg-out-1718.google.com with SMTP id 22so214598fge.1 for ; Tue, 01 Sep 2009 14:39:43 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4A9D9168.2070608@mit.edu> References: <4A9D9168.2070608@mit.edu> From: =?ISO-8859-1?Q?G=E1bor_Stefanik?= Date: Tue, 1 Sep 2009 23:39:22 +0200 Message-ID: <69e28c910909011439g6eb94e33m3bbfc2e2bbcf47e9@mail.gmail.com> Subject: Re: 2.6.31 regression: iwlagn power_level no longer works To: Andy Lutomirski Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tue, Sep 1, 2009 at 11:26 PM, Andy Lutomirski wrote: > On 2.6.30.5, I can echo 1 >/sys/class/net/wlan0/device/power_level, and the > value changes to 1, my wakeup rate goes way down, and my power consumption > (as measured by powertop) drops noticeably. > > On 2.6.31-rc7, I can still echo 1 to that file, but nothing happens, and the > value I get if I 'cat power_level' remains at 0. > > My kernel configs are as identical as 'make oldconfig' knows how to make > them. > > Any ideas? Power saving has been disabled temporarily in recent versions, as it caused too many problems. AFAIK either there is either a modparam to re-enable it or you can re-enable it using iwconfig (it is simply off by default). There was talk on the mailing list whether to use a modparam or iwconfig - I don't remember what the outcome was. > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at  http://vger.kernel.org/majordomo-info.html > -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-)