GNOME Bugzilla – Bug 603967
Slider position problem when moving the mouse outside the rectangle
Last modified: 2017-08-15 20:15:08 UTC
Created attachment 149237 [details] screenshot of the problem Click on the gnome-volume-control-applet icon, it opens a slider you can move with the mouse. Put the mouse over the slider and press : you can move the slider. Let the button pressed and move the mouse outside the "brown rectangle" (see the screenshot) : the slider jump to about 15 pixels to the bottom. Let the button pressed and move the mouse inside the brown rectangle : the slider take its right position back. It is a cosmetic bug, but I think it must be reported… and shouldn't be very hard to fix. https://bugs.launchpad.net/ubuntu/+source/gnome-media/+bug/493217
This is the way scrollbars and other scales behave in GTK+.
But why this constant shift when moving "outside the rectangle"? You mean the bug is in GTK+?
It's not a bug, it's the default value of a setting: https://developer.gnome.org/gtk3/stable/GtkSettings.html#GtkSettings--gtk-primary-button-warps-slider Set that to TRUE if you want clicking in the trough to jump to the current position, rather than moving along by :page-size.