Re: Battery life VERY short on N810, last OS2008...

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On Monday 21 Apr 2008, Giacomo Tufano wrote:
> After installing the last revision of OS2008 (I don't really know why I did
> it, because I had no problem on startup) battery life is very, very short. I
> go from full battery down to automatic shutdown in a night...
> I tried reinstalling the OS, then I tried reinstalling the OS and not
> restore backup (but Favorites, but I suppose this will make no difference).
> No luck.
> In system log I have *many* couple of lines saying:
> EAC mode: play enabled, rec enabled
> followed by
> EAC mode: play enabled, rec disabled
> Repeating every 5-10 seconds and never stopping...
> 
> The lines are starting after the MMU and omapdsp init (after ca. 20 seconds
> from log startup) and never ends.

It certainly sounds like it's doing a lot of work. I've found that some 
applications hammer the battery just because they're loaded, even if they 
aren't apparently doing anything; the Ogg Vorbis player being a case in 
point. If I didn't close it after use in the evening, I'd wake up to a flat 
battery in the morning.

A good way to see what's actually causing the problem is to open a terminal 
and run "top" - that will show you the CPU usage of the various processes.

-- 
Tony Green
Ipswich, Suffolk, England
http://www.beermad.org.uk
http://no2id-ip.web-brewer.co.uk

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