[maemo-users] Blinking backlight and no sound

From: Eero Tamminen eero.tamminen at nokia.com
Date: Tue Sep 4 10:03:06 EEST 2007

ext Ryan Campbell wrote:
> On 3-Sep-07, at 4:42 AM, Eero Tamminen wrote:
>> ext Ryan Campbell wrote:
>>> On 1-Sep-07, at 11:07 AM, Brian Litzinger wrote:
>>>> My N800 sits on my desk and has all its life.  I do no carry it
>>>> around with me.  It is always plugged into the AC.
>>>> This morning the backlight was blinking every 5 to 10 seconds and
>>>> the audio seems to be gone.
>> Did you see the UI still, it's not e.g. rebooting, say every 6  
>> seconds?
> In my case, (Brian's may be different) it was not rebooting, and was  
> still usable (web browsing etc..) except that the screen would flash  
> off every few seconds.
> Also, when I rebooted the N800, the screen would continue flashing  
> during boot.

Strange, I have never heard of anything like that.

Could you create a bug for that to bugs.maemo.org under "System
software" / "dsme" (I think that's best place to start) and put
me on CC?

Brian, maybe you could then add your information to that bug?


	- Eero

>>>> I power cycled it.  While it was off it showed a blinking white   
>>>> screen.
>>>> During power on it blinked and its still blinking and the sound it
>>>> still gone.
>> Which release do you have?
> 	This happened on mine with the previous release and on my  
> girlfriend's with the current release (4.2007.26-8)
>>>> When I used the media player to play an mp3 it reports
>>>>    Unable to perform the operation. Try again
>> Do you have any extra software installed?
>> (this could be D-BUS related, earlier Avahi, a Canola dependency,
>> was causing this kind of problems, but Avahi should be now fixed)
>>>> Has anyone else run into this?
>>>> Removing the battery and then re-inserting brings everything back.
>>>> -- 
>>>> Brian Litzinger
>>>> _______________________________________________
>>> That  sounds a lot like a problem I had about a month ago.
>>> The N800 was left charging overnight like usual, and when waking  
>>> it  up in the morning I encountered the same blinking backlight. I  
>>> did  not play with it long enough to try to play an mp3, I just  
>>> reflashed  the device and it was back to normal.
>> Did you also keep it long periods in the charger?
> I don't keep it in the charger for a ridiculous amount of time. The  
> only time I ever charge it is overnight.
>>> I can't remember if I tried taking the battery out or not.
>>> My girlfriend is also currently experiencing the same problem, but  
>>> as  she is off in europe right now I have not been able to look  
>>> into it  much.
>>> Any idea what the problem could be? Bad battery connection,  
>>> maybe?  But that doesn't explain why reflashing my device fixed it.
>> Device stores some state that persists over reboot, there might
>> be something that is cleared only when battery is removed (maybe
>> something related to battery management?).

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