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List:       kde-bugs-dist
Subject:    [plasmashell] [Bug 350068] Support the 'Plugged in but not charging' status for ThinkPad batteries
From:       Joris Steyn <jorissteyn () gmail ! com>
Date:       2015-09-30 22:33:16
Message-ID: bug-350068-17878-EmNCSIZXLN () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=350068

--- Comment #4 from Joris Steyn <jorissteyn@gmail.com> ---
This might be different for older thinkpads using tp_smapi, but thinkpad_acpi
(which is the only option for T430+) only differentiates between charging,
discharging and unknown. Upower has some fallback logic in the case of unknown
[1] resulting in the incorrect charging state. See upower bugs [2] [3].

If upower would just pass on the unknown state, we could report that as
'nocharge' (tlp does it that way too). I don't know if and for what models or
drivers noCharge.patch is effective, but sadly it won't work for any thinkpad
model currently being sold.

[1] http://cgit.freedesktop.org/upower/tree/src/linux/up-device-supply.c#n692
[2] https://bugs.freedesktop.org/show_bug.cgi?id=90975
[3] https://bugs.freedesktop.org/show_bug.cgi?id=70321

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