can't use keyboard after resume from suspend

[Gianfranco Costamagna]

Many times (around ~60% of them), resuming my laptop from suspend results in a not-working keyboard.

Solution/Workaround is: close lid, let it suspend again, and try to resume until keyboard gets working again.

Another solution is: plug an usb keyboard, and run something like "modprobe usbhid" or "modprobe hid", and this unblocks also the laptop keyboard.

Probably this is a bug in the kernel, but I have not enough knowledge to understand where it is located (maybe we can add some systemd hooks in /lib/systemd to catch such events and reload the kernel modules?)

G.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: systemd 229-4ubuntu12
ProcVersionSignature: Ubuntu 4.4.0-51.72-generic 4.4.30
Uname: Linux 4.4.0-51-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
CurrentDesktop: GNOME
Date: Thu Dec 15 16:15:08 2016
InstallationDate: Installed on 2016-05-11 (217 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Acer Aspire V3-772G
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-51-generic root=UUID=96a472a8-14aa-43e2-8953-a112b2ef6b9c ro quiet splash
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/11/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.13
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: VA70_HW
dmi.board.vendor: Acer
dmi.board.version: Type2 - Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.13:bd10/11/2013:svnAcer:pnAspireV3-772G:pvrV1.13:rvnAcer:rnVA70_HW:rvrType2-BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire V3-772G
dmi.product.version: V1.13
dmi.sys.vendor: Acer

[J (jonathan-vola)]

I seem to have fixed this by adding `atkbd.reset` to my boot parameters.

You can add them to `GRUB_CMDLINE_LINUX` and `GRUB_CMDLINE_LINUX_DEFAULT` in `/etc/default/grub` then `sudo update-grub` for them to apply on every boot.