These messages come from the i2c_hid module, which is a module that sits between the hid-aus driver and the i2c driver. The message indicates that the i2c_hid module received an invalid INPUT report and has discarded it. The hid-asus driver is never made aware that this occurred.
I can think of three possible causes: a) an electronic signalling issue; b) a firmware issue; or c) a proprietary function of the device There's little that can be done for a) or b) - it's effectively faulty (or poorly shielded) hardware. For c) - if there were documentation we might be able to do something. But it would likely require a quirk at the lower levels (i.e. the i2c_hid module). And given (in my experience) the minimal impact of these messages - that might be something the kernel maintainers would consider undesirable. You could investigate further by modifying the i2c_hid module to dump the contents of the discarded message. But since a recent change to the i2c_hid module (which put a sleep inbetween the POWER ON and RESET commands) I no longer seem to get these messages. -- 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/1650895 Title: Several new Asus laptops are missing touchpad support Status in linux package in Ubuntu: Fix Released Status in linux source package in Yakkety: Fix Released Status in linux source package in Zesty: Fix Released Bug description: E502SA and several other new Asus laptops are missing touchpad support. Support for the Asus touchpad has been introduced only recently: http://www.spinics.net/lists/linux-input/msg48143.html From the development kernel git: "commit 9ce12d8be12c94334634dd57050444910415e45f Author: Brendan McGrath <red...@redmandi.dyndns.org> Date: Tue Nov 29 18:59:25 2016 +1100 HID: asus: Add i2c touchpad support Update the hid-asus module to add multitouch support for the Asus i2c touchpad. This patch aims to resolve the issue raised here:E https://bugzilla.kernel.org/show_bug. The latest mainline kernel, Linux 4.9 that was released 11th of December doesn't contain this patch. I was able to get touchpad features to work with E502SA after patching Xenial Xerus kernel with the above patch and the patches it depends on. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-53-generic 4.4.0-53.74 ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30 Uname: Linux 4.4.0-53-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: jamse 2045 F.... pulseaudio CurrentDesktop: Unity Date: Sun Dec 18 15:41:30 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=d46d5e40-bd0f-41a5-87bb-f4f470f7b4d6 InstallationDate: Installed on 2016-12-14 (4 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 04f2:b52b Chicony Electronics Co., Ltd Bus 001 Device 004: ID 13d3:3423 IMC Networks Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. E502SA ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-53-generic.efi.signed root=UUID=17457b58-fc63-470b-a916-2eedb0dbd58e ro quiet splash intel_idle.max_cstate=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-53-generic N/A linux-backports-modules-4.4.0-53-generic N/A linux-firmware 1.157.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/20/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: E502SA.300 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: E502SA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrE502SA.300:bd07/20/2016:svnASUSTeKCOMPUTERINC.:pnE502SA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnE502SA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: E502SA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1650895/+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
