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Bug #427

Updated by Akura Ryu over 1 year ago

I've flashed my ThinkPad X200 with coreboot. Currently it has trouble when charging. 

 ## 1. Charge state mismatch Cannot charge when battery level is below 20%. 
 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

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