Thanks for the reply. The PC is a desktop - Dell Precision Tower 5810. However... I may have narrowed this down to something related to my Dell USB soundbar. I've disconnected it and the issue goes away.
The soundbar is a Dell AC511. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-settings-daemon in Ubuntu. https://bugs.launchpad.net/bugs/1770629 Title: Keyboard and mouse lockup when using media keys to adjust volume Status in gnome-settings-daemon package in Ubuntu: Incomplete Bug description: Ubuntu 18.04 LTS gnome-settings-daemon 3.28.1-0ubuntu1 Summary: -------- When I press any of my keyboard's volume up/down/mute keys, my keyboard and mouse lock up completely. (Mouse pointer frozen and no keypresses have any effect). The rest of the system continues to function normally. The on-screen volume notification appears repeatedly every few seconds. Variations: ----------- Occasionally, I can press the buttons a few times with no effect, before the lock-up eventually happens. Also occasionally, my Gnome session may crash completely to a black screen a few seconds after the input devices lock up. I haven't been able to discern a pattern to when these different effects occur. Troubleshooting attempted: -------------------------- I can reproduce this when running from a Live USB on the same system. Disabling the keyboard shortcuts for volume up/down and mute in the keyboard settings GUI does not prevent this issue. If I set different keys for these shortcuts, they work fine - the problem is specific to my keyboard's special media keys. The other (non-audio-related) media keys on my keyboard work fine. I have gone through the suggested "Useful Information" steps at https://wiki.ubuntu.com/Hotkeys/Troubleshooting and will attach the output files to this report. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-settings-daemon 3.28.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri May 11 12:30:24 2018 EcryptfsInUse: Yes InstallationDate: Installed on 2017-12-14 (147 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/zsh SourcePackage: gnome-settings-daemon UpgradeStatus: Upgraded to bionic on 2018-04-27 (13 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1770629/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
