From mboxrd@z Thu Jan  1 00:00:00 1970
From: viresh.kumar@linaro.org (Viresh Kumar)
Date: Wed, 26 Apr 2017 09:48:33 +0530
Subject: Touchscreen failure with CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
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To: linux-arm-kernel@lists.infradead.org
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On 25-04-17, 12:24, Fabio Estevam wrote:
> On Tue, Apr 25, 2017 at 11:35 AM, Adam Ford <aford173@gmail.com> 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