Re: [bug?] Battery notifications produce flashing battery icon, syslog spam (Re: [PATCH 11/11] ACPI / Battery: Update information on info notification and resume)

[Ralf Jung <post@ralfj.de>]

Hi,

in addition to the constant flickering when running on AC, there is a more 
"high frequency" flickering immediately after plugging in the AC: For some 5 
to 10 seconds, the battery appears and disappears (according to upower) around 
once per second. There's also a short moment without battery after plugging 
out the AC.
All this is gone after going to a kernel version without this patch applied.

I did not notice unusual high CPU usage of upower on my system, however I 
noticed disc activity - according to iotop, upower is writing several MiB of 
data per minute to /var/lib/upower/ where it keeps some battery statistics. I 
do not know whether this is out of the ordinary.

Kind regards,
Ralf


On Tuesday 01 May 2012 21:14:08 Jonathan Nieder wrote:
> (cc-ing Andy)
> 
> Adrian Fita wrote:
> > Also, searching on Google after "upowerd device
> > removed:/org/freedesktop/UPower/devices/battery_BAT0", reveals much
> > more bug reports with the exact issue.
> 
> Thanks.  That confirms the high CPU consumption in upowerd ---
> see [1], for example.
> 
> [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/987807