Issue #427 has been updated by Akura Ryu.
Angel Pons wrote in #note-4:
Hi,
Yes, the EC should be reset by unplugging all power supplies, as it loses power. The RTC/CMOS battery shouldn't matter, but it would be a good idea to disconnect it as well if it's easy to do so.
I've unplugged all those power supplies. Thresholds had been reset.
But when I plug in AC adapter while power off, then boot Linux, Issue 1 still exists.
---------------------------------------- Bug #427: x200: Two battery charging issues https://ticket.coreboot.org/issues/427#change-1157
* Author: Akura Ryu * Status: New * Priority: High * Category: board support * Target version: master * Start date: 2022-10-14 * Affected versions: master * Needs backport to: master * Affected hardware: ThinkPad X200 * Affected OS: Linux ---------------------------------------- I've flashed my ThinkPad X200 with coreboot. Currently it has trouble when charging.
## 1. Charge state mismatch When I plug in my AC adapter, system always reports " **Not charging** ".
Here's the output from the `acpi` utility: ``` Battery 0: Not charging, 23% Adapter 0: on-line ```
But weirdly, battery level is still increasing as the AC adapter is on-line.
What's more, it still reports "Not charging" when AC adapter is detached (normally it should be "Discharging").
## 2. Battery threshold doesn't seem to work.
Since tp_smapi is unusable without stock firmware, I use `tpacpi-bat` to configure battery threshold. My KDE battery indicator can recognize these thresholds.
```sh sudo tpacpi-bat -s ST 1 88 # Start threshold sudo tpacpi-bat -s SP 1 90 # Stop threshold ```
But no matter how I charge, battery will always be fully charged.
## Revision - **OS**: Arch Linux with KDE - **Coreboot revision**: 93781523a - **Configuration**: See attachment
---Files-------------------------------- .config (18.8 KB)