coreboot

Could you please check if the "battery not charging" issues are still present when not using any software to mess with the thresholds? To properly test, please make sure the EC (Embedded Controller) gets reset: power off the laptop and remove all batteries and the AC adapter.

Angel Pons wrote in #note-2:

Could you please check if the "battery not charging" issues are still present when not using any software to mess with the thresholds? To properly test, please make sure the EC (Embedded Controller) gets reset: power off the laptop and remove all batteries and the AC adapter.

Hi Angel!

Seems that I had tried some ectool command snippets in this thread: https://ticket.coreboot.org/issues/38. I used to try them to configure threshold, but they are not suitable with X200, and may cause unpredictable bugs.

Can EC be fully reset by unplugging power supplies?

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.

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.
(Procedure: Power off -> Plug in AC adapter -> Boot Linux)

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.

Now battery threshold seems to work well when connecting adapter after system boot. But Issue 1 still exists.

Here I summarize when Issue 1 occurs:

• Connect to AC adapter when X200 is off.
• Charging capacity reaches stop_charge_thresh. KDE shows "battery is full" even though adapter has already disconnected (normally it should be "discharging").