The failure,
battery: (dis)charge rate invalid
is due to kernel complain about the firmware report the negative Present
Rate on the _BST method
the comment on kernel driver/acpi/battery.c,
/* For buggy DSDTs that report negative 16-bit values for either
* charging or discharging current and/or report 0 as 65536
* due to bad math.
*/
kernel has workarounded it with using the ABS() positive value.
battery->rate_now = abs((s16)battery->rate_now);
** Changed in: linux-lts-raring (Ubuntu)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/1250354
Title:
[Dell Inspiron 5737] fwts reported high failure about klog[Firmware
Bug]: battery: (dis)charge rate invalid.
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