Re: [REGRESSION] - Multiple userspace implementations of battery estimate broken after "ACPI: battery: negate current when discharging"

Hi,

On Thu, Jul 3, 2025 at 3:55 AM Matthew Schwartz matthew.schwartz@linux.dev wrote:

Hello,

I installed kernel 6.15.4 to find that my battery estimate on my handheld gaming device was completely inaccurate, instead giving negative values and an unknown estimated battery life in multiple places.

After bisecting, I landed on "ACPI: battery: negate current when discharging” as the bad commit. This commit breaks not one but several userspace implementations of battery monitoring: Steam and MangoHud. Perhaps it breaks more, but those are the two I have noticed so far.

Thanks for letting me know, I'm queuing up a revert of this one.