I'm running Manjaro Linux on my HP Pavilion laptop (15-au014ng) and recently I'm experiencing an odd behaviour:
When the laptop is powered off it drains the battery quite a lot. I'm losing up to 40% battery over night.
However this problem does only occur when "letting linux shutdown the computer" (either via the start menu or via
shutdown now in the console). If I kill my computer by holding down the power button the battery stays about the same over the same period.
I am currently using the 4.9.71-1 LTS kernel, though I barely can believe that this is a kernel issue as I haven't upgraded the kernel (if I remember correctly - Is there a way to double-check that?) and it used to work just fine. I am experiencing this issue only for about 1.5-2 months.
I thought it might be a bug of one of the installed packages and that it would be solved within the next updated but it doesn't appear to be that easy.
I found this article on the topic which suggested to add
ethtool -s eth0 wol d to
/etc/rc.local.shutdown which I did (though I replaced
eno1 as this is the name of my Ethernet connection according to
ifconfig). However this didn't solve the problem.
I also checked the WOL setting using
sudo ethtool eno1 and it showed me that WOL should be disabled anyway.
The only thing I noticed is that I get this message during boot as well as during the shutdown process:
Dez 08 17:25:43 workstation kernel: Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
Dez 08 17:25:43 workstation kernel: Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_config.bin
Dez 08 17:25:43 workstation kernel: bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
Dez 08 17:25:43 workstation kernel: Bluetooth: hci0: Failed to load rtl_bt/rtl8723b_config.bin
Dez 08 17:25:43 workstation kernel: Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
Dez 08 17:25:43 workstation kernel: Bluetooth: hci0: rom_version status=0 version=1
Dez 08 17:25:43 workstation kernel: Bluetooth: cfg_sz 0, total size 22496
Though I'm not sure whether that has something to do with the actual problem.
Does anybody have an idea what the cause of this might be and (ideally) how to fix it?
It appears that I this question describes a very similar if not the same problem (though with a newer kernel).
I'm not sure when exactly this problem started but I know that I install all updates that
octopi will provide me so it is absolutely possible (actually pretty likely) that the problem occured with some of these updates.
I do know however (just discoverd it) that my kernel has in fact being graded up. I know that when I first installed Manjaro on my laptop it shipped with kernel
4.9.47-1. I'm going to search for a way to check when these kernel updates have been performed to see if there is any connection.