Package: linux-image-6.1.0-10-amd64
Version: 6.1.37-1
Severity: wishlist
In the journal we find the following warning concerning an accelerometer
(the last line is orange):
…
Jul 15 03:35:14 AnonymizedMachneName kernel: i801_smbus 0000:00:1f.3:
SMBus using PCI interrupt
Jul 15 03:35:14 AnonymizedMachneName kernel: ACPI: bus type USB registered
Jul 15 03:35:14 AnonymizedMachneName kernel: ACPI: video: Video Device
[VID] (multi-head: yes rom: no post: no)
Jul 15 03:35:14 AnonymizedMachneName kernel: i801_smbus 0000:00:1f.3:
Accelerometer lis3lv02d is present on SMBus but its address is unknown,
skipping registration
…
The machine is a Dell Mobile Precision M6700. BIOS is at its latest
available version A20. As the machine experiences high-level issues
later at boot (e.g., some services can't start), we wish to be sure
about the contribution of the issues warned about here. How much do we
have to worry? During boot, /sys/devices/platform does NOT have files
referring to lis3lv02d.
Trying to `modprobe -v lis3lv02d` succeeds and yields new
/sys/kernel/btf/lis3lv02d
/sys/module/lis3lv02d
Trying to `modprobe -v lis3lv02d_i2c` generates even more contents in /sys:
/sys/kernel/btf/lis3lv02d_i2c
/sys/bus/i2c/drivers/lis3lv02d_i2c
/sys/module/lis3lv02d_i2c
/sys/module/lis3lv02d_i2c/drivers/i2c:lis3lv02d_i2c
/sys/module/lis3lv02d/holders/lis3lv02d_i2c
So the kernel might be unaware of the accelerometer by default (which is
probably not ideal because, e.g., the we might wish to cut/reduce power
to, say, fans, when the laptop starts falling/vibrating (and therefore
also reduce the power consumption by various chips, e.g., reducing the
CPU frequency) and restore the settings after fall).
Moreover, the documentation on lis3lv02d present in
/usr/share/doc/linux-doc-6.1 talks about HP laptops with this
accelerometer. Here, we have a Dell laptop. So IF the driver is
correct for our accelerometer (how do we find this out with certainty?),
the documentation has to be adapted.
Gratefully,
AlMa
