Having the same issue here.
.-/+oossssoo+/-. lucas@bionic `:+ssssssssssssssssss+:` ------------ -+ssssssssssssssssssyyssss+- OS: Ubuntu 18.04.1 LTS x86_64 .ossssssssssssssssssdMMMNysssso. Host: Inspiron 7472 /ssssssssssshdmmNNmmyNMMMMhssssss/ Kernel: 4.15.0-36-generic +ssssssssshmydMMMMMMMNddddyssssssss+ Uptime: 9 hours, 1 min /sssssssshNMMMyhhyyyyhmNMMMNhssssssss/ Packages: 2370 .ssssssssdMMMNhsssssssssshNMMMdssssssss. Shell: bash 4.4.19 +sssshhhyNMMNyssssssssssssyNMMMysssssss+ Resolution: 1920x1080 ossyNMMMNyMMhsssssssssssssshmmmhssssssso DE: GNOME 3.28.3 ossyNMMMNyMMhsssssssssssssshmmmhssssssso WM: GNOME Shell +sssshhhyNMMNyssssssssssssyNMMMysssssss+ WM Theme: Adwaita .ssssssssdMMMNhsssssssssshNMMMdssssssss. Theme: United-Ubuntu-Dark [GTK2/3] /sssssssshNMMMyhhyyyyhdNMMMNhssssssss/ Icons: Paper [GTK2/3] +sssssssssdmydMMMMMMMMddddyssssssss+ Terminal: gnome-terminal /ssssssssssshdmNNNNmyNMMMMhssssss/ CPU: Intel i7-8550U (8) @ 4.000GHz .ossssssssssssssssssdMMMNysssso. GPU: Intel Integrated Graphics -+sssssssssssssssssyyyssss+- GPU: NVIDIA GeForce MX150 `:+ssssssssssssssssss+:` Memory: 5533MiB / 15937MiB .-/+oossssoo+/-. lucas@bionic:~$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 8 Model name: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1753070 Title: Cannot restore default alert sound (Ubuntu bell) Status in gnome-control-center package in Ubuntu: Confirmed Bug description: After changing the default alert sound in Settings > Sound > Sound Effects, I cannot restore the alert sound to the Ubuntu 17.10 default. Gnome Control Center version: 1:3.26.2-0ubuntu0.2 There are five options in the Sound Effects tab: Default, Bark, Drip, Glass and Sonar. Selecting Default gives the same sound as Drip, which is not the default I had before. I think the sound options come from /usr/share/sounds/gnome/default/alerts where I found Ogg files for the Bark, Drip, Glass and Sonar options (but not for Default). The /usr/share/sounds/ubuntu/stereo/bell.ogg seems to have been the original default alert sound, to which I cannot restore. I am not sure if this is related, but when I opened the Sound Effects tab for the first time, the Alert Volume slider was at 0% and grayed out. The alert sound was working fine, so I guess that default settings from elsewhere were in effect until I started adjusting things in this tab and thereby overriding those default settings. I cannot restore to that grayed out state either in this tab. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-control-center 1:3.26.2-0ubuntu0.2 ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13 Uname: Linux 4.13.0-36-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Mar 3 11:17:54 2018 InstallationDate: Installed on 2018-02-09 (21 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1) SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1753070/+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