https://bugzilla.kernel.org/show_bug.cgi?id=199171
Giorgio (giorgio.colacc...@gmail.com) changed:
What |Removed |Added
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CC| |giorgio.colacc...@gmail.com
--- Comment #1 from Giorgio (giorgio.colacc...@gmail.com) ---
Dear all,
I’ve the same problem of battery drain while the notebook is off (from now on:
BD) and I’ve been struggling for weeks to solve this problem. At the moment, in
my case too the only way to avoid BD, after shutting down the notebook, is to
remove/reinsert the battery.
My notebook is a HP Pavilion 15-ak112nl, and the OS is Slackware64 14.2.
Since this bug has already been reported (see
https://bugzilla.kernel.org/show_bug.cgi?id=198665 ) I didn’t send a bug
notification earlier. However, hoping it may prove useful in order to solve
this annoying problem, let me point out to your attention few things that I can
tell you about BD.
1. As Andrea says, BD is kernel related since it is present on both 4.14.x and
4.15.x kernel, but – for instance – there is no BD on 4.12.x kernel (actually,
I’m currently using 4.12.14 kernel and everything works fine).
2. BD is “manufacturer related”. In the past weeks I googled a lot on this
matter, and I came to the conclusion that BD affects just some of HP notebooks
(in particular, the “gaming” series).
3. BD is not related to data storage device type. Since in my case Slackware is
installed on both HDD and SSD, I’ve noticed that BD is present on both storage
devices.
4. My notebook is equipped with nVidia Optimus Technology (GeForce GTX 950M
graphical + Intel HD Graphics 530) but BD does not seem related to the discrete
GPU. I currently use Bumblebee packages and everything works fine on both
4.12.14 and 4.14.x-4.15.x kernels. The recompilation of Bumblebee packages on
4.12.14 or on 4.14.x (or 4.15.x) kernel makes no difference: BD is still
present on 4.14.x (4.15.x) kernel, but it is not present on 4.12.14 kernel.
5. In order to solve BD problem, I wasn’t able to find anything of really
relevant in dmesg outputs, nor I found something of interest in comparing the
kernel configuration files (if it may prove useful, I can upload the diff file
between kernel 4.12.14 and kernel 4.14.x config files). However, in the kernel
syslog file (i.e., /var/log/syslog) I found the following (apparently
interesting) warning message: i801_smbus 0000:00:1f.4: An interrupt is pending!
Consistently with this message, before shutting down the notebook I unloaded
the i2c_i801 module: at the reboot I noticed that the warning message wasn’t
there anymore, but BD was still present.
That’s all. Please, let me know if you need any further information (of course
I can give you a detailed description of my hardware configuration, of loaded
modules, of software configuration, and so on…).
All the best,
Giorgio
P.S.: as soon as possible I will test the 4.16 kernel (which is still in the rc
state)...I’ll let you know...
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