Mouse-Scroll-Wheel Alters Drop-Down Selections During Scroll Navigation
The Gnome Sound Settings tab contains enough options to where you must scroll down to see them all.
Since the scrollbar is so narrow, I use my mouse-scroll-wheel to achieve this scroll navigation.
However, while scrolling with the intention of "navigation", if the mouse-cursor passes over the Output Device drop-down-menu, or any of the slider controls, it inadvertently changes these settings.
The ability to change drop-down-menu selections, using the mouse-scroll-wheel is convenient in some cases, but it becomes problematic when the user is simply intending to do scroll navigation.
I can see a non-advanced user accidentally changing sound settings that they had no intention of changing in this design. Plus, even if they do notice the inadvertent changes, they may not know "what to change the settings back to".
A possible solution would be to disable modifications via scroll-wheel until the user has first explicitly clicked an option's sub-section.
Here's a video showcasing this issue: https://youtu.be/Z6jNCCxC4hA
Downstream at Ubuntu: https://bugs.launchpad.net/bugs/1849880
ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: gnome-control-center 1:3.34.1-1ubuntu2 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 Uname: Linux 5.3.0-19-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 Date: Fri Oct 25 12:29:32 2019 InstallationDate: Installed on 2019-10-19 (6 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-control-center UpgradeStatus: No upgrade log present (probably fresh install)