It appears that the problematic commit has been found: https://lkml.org/lkml/2018/10/25/281
and there's even a patch: https://lkml.org/lkml/2018/11/30/865 I haven't tested it myself -- 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/1769792 Title: Keyboard and Touchpad do not work after suspend/resume Status in linux package in Ubuntu: Confirmed Bug description: My laptop is a Toshiba Satellite C850D with updated 18.04 installed. When resuming from suspend, I have no keyboard and touchpad. dmesg shows "i8042: Can't reactivate KBD port" This looks like a recurring problem, and is just like these: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1014240 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1142118 Here's the dmesg output from before and after suspending. https://paste.ubuntu.com/p/rsFX9Yw7Xh/ This post also talks about this bit failing for a lot of people! http://lightrush.ndoytchev.com/random-1/i8042quirkoptions Some of the function keys work, such as changing the screen brightness, but the key (fn+F5) does not turn the touchpad back on. I have not yet tried any of the suggested options, as results have been mixed, but I will. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-20-generic 4.15.0-20.21 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon May 7 22:01:26 2018 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/bash SourcePackage: linux-signed UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769792/+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
