I2c i2c-2: SMBus Timeout at boot + upgraded to new kernel 5.0.0-21

Support & Help Requests
1

Hi!
I upgraded to new kernel 5.0.0-21 in 19.04.

Systemd shows me on boot 'i2c errors':
kernel: [ 14.509890] i2c i2c-2: SMBus Timeout!
kernel: [ 14.509952] i2c i2c-2: Failed reset at end of transaction (01)
kernel: [ 14.510064] i2c i2c-2: Failed! (01)

How to fix these errors on boot?

2

kernel: [ 16.686234] i2c i2c-2: SMBus Timeout!
kernel: [ 16.686296] i2c i2c-2: Failed reset at end of transaction (01)
kernel: [ 16.686438] i2c i2c-2: Failed! (01)
kernel: [ 16.686516] i2c i2c-2: Failed! (01)

:frowning: anyone can help?

3

I blacklisted a few modules about "sensors"...

blacklist adt7475
blacklist hwmon_vid
blacklist i2c_piix4
blacklist it87
blacklist k10temp

Now the i2c-2 errors are gone on boot but a new error appears on boot:

kernel: [ 3614.068109] db_root: cannot open: /etc/target

4

I found the solution for my problem :slight_smile:

Upgraded to kernel 5.0.0-23-generic

Still blacklisted: "/etc/modprobe.d/sensors"
(sensors is the file that I have created before a few days ago)

blacklist adt7475
blacklist hwmon_vid
blacklist it87
blacklist k10temp

Removed from blacklist: "/etc/modprobe.d/sensors"

blacklist i2c_piix4

Removed from: "/etc/initramfs-tools/modules"
vhost_scsi

sudo update-initramfs -u

Added to the GRUB_CMDLINE_LINUX_DEFAULT
in "/etc/default/grub"

GRUB_CMDLINE_LINUX_DEFAULT="initcall_blacklist=i2c_dw_init_master"

then:

sudo update-grub

...now, the i2c-2 errors and db_root: cannot open: /etc/target
problem are gone.