Opened 4 years ago

Last modified 3 years ago

#16442 new bug

Battery % jumps up and down

Reported by: nephele Owned by: tqh
Priority: normal Milestone: Unscheduled
Component: Drivers/ACPI Version: R1/beta2
Keywords: Cc:
Blocked By: Blocking:
Platform: All

Description

goes from 7% to 70% and back and such (where 70% seems to be the more accurate value)

Attachments (2)

battery.png.png (138.6 KB ) - added by nephele 4 years ago.
syslog (221.8 KB ) - added by nephele 4 years ago.

Download all attachments as: .zip

Change History (5)

by nephele, 4 years ago

Attachment: battery.png.png added

by nephele, 4 years ago

Attachment: syslog added

comment:1 by davidrg, 3 years ago

I get this on an HP nc6400 - seems to just be giving random numbers.

Running haiku hrev56182 at the moment but I've had this on beta 3 too.

comment:2 by nephele, 3 years ago

In my case the value is fairly predictable, and the Battery info changes wierdly accordingly.

I suspect the OS misparses some data in my case, if yours is completely random it might be different (say, firmware returning wrong data for example)

Can you check whether your battery "info" changes on each refresh if the percentage too?

comment:3 by davidrg, 3 years ago

Ran it on battery power for a while and observed the battery levels: 100, 78, 46, 13, 92, 66, 55, 36, 27, 86, 10, 57, 48, 38, 9, 10...

The only values in extended battery info that change are the status (usually "Battery unused" but sometimes "Battery discharging"), the capacity which goes up and down with the battery percentage (probably the value thats being read wrong), and the current rate. All other values (last full charge, design capacity, etc) stay the same.

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