From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.perfora.net ([74.208.4.194]:54591 "EHLO mout.perfora.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751776Ab0DRTTH (ORCPT ); Sun, 18 Apr 2010 15:19:07 -0400 Message-ID: <4BCB5B26.3080605@vorgon.com> Date: Sun, 18 Apr 2010 12:19:02 -0700 From: "Timothy D. Lenz" MIME-Version: 1.0 To: linux-media@vger.kernel.org Subject: Re: cx5000 default auto sleep mode References: <4BC5FB77.2020303@vorgon.com> <1271303099.7643.7.camel@palomino.walls.org> In-Reply-To: <1271303099.7643.7.camel@palomino.walls.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 4/14/2010 8:44 PM, Andy Walls wrote: > On Wed, 2010-04-14 at 13:40 -0400, Devin Heitmueller wrote: >> On Wed, Apr 14, 2010 at 1:29 PM, Timothy D. Lenz wrote: >>> Thanks to Andy Walls, found out why I kept loosing 1 tuner on a FusionHD7 >>> Dual express. Didn't know linux supported an auto sleep mode on the tuner >>> chips and that it defaulted to on. Seems like it would be better to default >>> to off. >> >> Regarding the general assertion that the power management should be >> disabled by default, I disagree. The power savings is considerable, >> the time to bring the tuner out of sleep is negligible, and it's >> generally good policy. >> >> Andy, do you have any actual details regarding the nature of the problem? > > Not really. DViCo Fusion dual digital tv card. One side of the card > would yield "black video screen" when starting a digital capture > sometime after (?) the VDR ATSC EPG plugin tried to suck off data. I'm > not sure there was a causal relationship. > > I hypothesized that one side of the dual-tuner was going stupid or one > of the two channels used in the cx23885 was getting confused. I was > looking at how to narrow the problem down to cx23885 chip or xc5000 > tuner, or s5h14xx demod when I noted the power managment module option > for the xc5000. I suggested Tim try it. > > It was dumb luck that my guess actually made his symptoms go away. > > That's all I know. > > Regards, > Andy > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Guess it only reduced the problem. Today I looked at the guide and abc had no data. Checked with femon and the second tuner on the dual would not tune.