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Subject: Re: [PATCH,RFC] avoid radio noise on sansa clipplus

Re: [PATCH,RFC] avoid radio noise on sansa clipplus

From: Jonas Wielicki <>
Date: Thu, 08 Nov 2012 12:47:06 +0100

On 07.11.2012 10:11, Stefan Seyfried wrote:
> On my sansa clip+, there is a quiet, ticking noise on weak fm radio
> channels.
> I found out that this is probably due to the cpu being woken up to
> update the display 5 times a second, even if the display is turned off.
This seems surprising to me. I expected rockbox to stop updating the
display, at least on the WPS, to avoid over-use of CPU while the display
is turned off, which might be the case for most of the time, e.g. on an
iriver target where you can bind the enabledness of the display to the
Hold key.

In that context, I appreciate your work and would love to see it in
master some time, seems like that could increase battery lifetime.

Received on 2012-11-08

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