Public bug reported: On Samsung Series 9 laptops the battery state and the charger status are incorrectly reported in kernel 4.15.
This bug is a regression: it has been fixed in 2012 [1] it used to work fine until Linux 14.10 (included). Quoting Matthew McCallum from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971061/comments/161 > If I disconnect power, remove the back cover, disconnect both the main > battery and the backup battery, I am able to get power status updates (e.g. > battery will show as charging/charged when plugged in, or just regular > battery when not). Once I sleep, I have to repeat this process if I want the > battery status to work again. > > `acpi -p` correctly shows the charging state, but `tlp-stat -b` does not. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971061/comments/159 ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: kernel-bug suspend-resume -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1792672 Title: Regression: acpi reports battery state incorrectly after sleep Status in linux package in Ubuntu: Incomplete Bug description: On Samsung Series 9 laptops the battery state and the charger status are incorrectly reported in kernel 4.15. This bug is a regression: it has been fixed in 2012 [1] it used to work fine until Linux 14.10 (included). Quoting Matthew McCallum from https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971061/comments/161 > If I disconnect power, remove the back cover, disconnect both the main battery and the backup battery, I am able to get power status updates (e.g. battery will show as charging/charged when plugged in, or just regular battery when not). Once I sleep, I have to repeat this process if I want the battery status to work again. > > `acpi -p` correctly shows the charging state, but `tlp-stat -b` does not. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/971061/comments/159 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1792672/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
