Seeing it also on my Acer Swift 1 laptop with the newer Ubuntu 4.15 kernel releases (newest as of this writing is 4.15.0-35-38, and the issue is present in that build) and also with the mainline 4.18.10 release. My touchpad is also an Elantech, but is a different model from the original report. My touchpad is reported as ELAN0501 instead of ELAN1010 in the dmesg spam, but otherwise, it's exactly as reported (also reporting 14/65535).
Changing the touchpad mode to basic in the UEFI does eliminate the dmesg spam, but that's because it switches it to PS/2 mouse emulation mode, no longer using the I2C bus at all. The acpi_osi= parameter disabled the touchpad when I tried it. -- 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/1784152 Title: i2c_hid_get_input floods system logs Status in linux package in Ubuntu: Confirmed Bug description: Ubuntu 4.15.0-29.31-generic 4.15.18 After upgrading to kernel version 4.15.0-29 from 4.15.0-23, the system logs are flooded whenever I move the cursor with my touchpad. It looks like this: i2c_hid i2c-ELAN1010:00: i2c_hid_get_input: incomplete report (14/65535) i2c_hid i2c-ELAN1010:00: i2c_hid_get_input: incomplete report (14/65535) i2c_hid i2c-ELAN1010:00: i2c_hid_get_input: incomplete report (14/65535) i2c_hid i2c-ELAN1010:00: i2c_hid_get_input: incomplete report (14/65535) etc... This problem did not occur on the previous kernel version so there must have been a change to the "drivers/hid/i2c-hid/i2c-hid.c" file. This seems to be fixed in a recent commit here: https://github.com/torvalds/linux/commit/ef6eaf27274c0351f7059163918f3795da13199c I am currently running the older kernel version but would still like to be up to date without this flooding happening. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1784152/+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
