Mouse-wheeling sliders moves them the wrong way.

This bug was fixed in the package gnome-control-center - 1:3.2.2-2ubuntu5

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gnome-control-center (1:3.2.2-2ubuntu5) precise; urgency=low

  * debian/patches/04_new_appearance_settings.patch:
    - Wallpapers grid in appearance should have 4 columns (LP: #922542)
    - Change the mouse wheel scrolling on slider to the opposite direction
      (LP: #922299)
 -- Didier Roche <email address hidden> Fri, 27 Jan 2012 15:02:10 +0100

The original bug is wrong: only audio-related sliders have their scroll wheel direction reversed. With this change, the scroll wheel behavior on sliders in Appearance is different for that in e.g. "Mouse and Touchpad". If we change direction (which we imo should), we should do it for all sliders in gtk.

In addition, the fix was wrong. It broke moving the slider with the scroll wheel all together.

I've reverted the fix in lp:~larsu/ubuntu/precise/gnome-control-center/remove-slider-hacks (together with the left-click-to-position the slider hack, see bug #953757).

Need input from design: should we change all sliders to move to the left when scrolling down?

Moving this out of in progress state, we've decided to wait and change this for 12.10

The logical incremental direction is left to right (horizontally) and bottom to top (vertically).

Vertically (e.g.: with scrollbars), to move the thumb towards the bottom, we move the finger (on top of the mouse wheel) towards us.

Hence the same movement, when we have horizontal slider, should move the thumb from right to left.

On my current Precise build the Launcher tile in the Appearance panel and the slider in the Sound indicator work fine.

Actually, with the new audio dialog, the Volume slider at the bottom doesn't react to scrolling at all. Neither does Balance in the right pane of the Output tab. The slider in the Effects tab also doesn't react. And not per-application audio.

In summary; none of the sliders react on scrolling anymore.