From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viresh Kumar Subject: Re: Touchscreen failure with CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND Date: Wed, 26 Apr 2017 09:48:33 +0530 Message-ID: <20170426041833.GD1928@vireshk-i7> References: <20170424114343.GS26900@vireshk-i7> <20170425050633.GV26900@vireshk-i7> <20170425111301.GC1928@vireshk-i7> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-pf0-f181.google.com ([209.85.192.181]:35621 "EHLO mail-pf0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1949689AbdDZESh (ORCPT ); Wed, 26 Apr 2017 00:18:37 -0400 Received: by mail-pf0-f181.google.com with SMTP id v14so32254597pfd.2 for ; Tue, 25 Apr 2017 21:18:37 -0700 (PDT) Content-Disposition: inline In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Fabio Estevam Cc: Adam Ford , Shawn Guo , "rjw@rjwysocki.net" , "linux-arm-kernel@lists.infradead.org" , Sascha Hauer , "linux-pm@vger.kernel.org" On 25-04-17, 12:24, Fabio Estevam wrote: > On Tue, Apr 25, 2017 at 11:35 AM, Adam Ford wrote: > > > I have a touch screen (using tsc2004 touch controller) on my board. I > > can run some tests if you tell me how you're able to reproduce your > > issue. I can at least confirm whether or not I see it too. I won't > > be able to do it until later tonight or tomorrow however. > > Just run: > > evtest /dev/input/eventX to capture the touchscreen events and keep > touching the screen. > > After some random time (1-2 minutes) evtest will stop capturing the events. And set the governor to Powersave to make sure we are running on lowest OPP. -- viresh