With natural scrolling, horizontal sliders behave backwards
When natural-scrolling is enabled, controlling horizontal sliders is backwards and counter intuitive.
The volume control in the top-bar "speaker" icon is backwards.
You have to...
- scroll DOWN, to INCREASE the volume
- scroll UP, to DECREASE the volume
Enable natural-scrolling and
- scroll UP, to INCREASE the volume
- scroll DOWN, to DECREASE the volume
- scroll UP, to INCREASE the screen brightness
- scroll DOWN, to DECREASE the screen brightness
Enable natural-scrolling, hover over a horizontal slider, and...
- scroll UP, to move the slider to the RIGHT
- scroll DOWN, to move the slider to the LEFT
This happens for the OSD volume icon, and for the volume slider in the topbar menu.
This also happens for screen brightness controls.
This problem occurs for both mouse natural-scrolling and touchpad natural scrolling.
When the pointer hovers over the speaker icon in the scroll actions on the speaker icon in the top bar should be reversed. When the user interacts with a horizontal slider, scrolling to the top should always move the slider to the right, and scrolling down should always move the slider to the left, even if natural-scrolling is enabled.
(Please reference https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1738676 for additional information).