Mouse scroll speed in Sierra

Thanks for your help. I don't have the inertia option, only with apple mice I suppose.

Another thread on the same issue: https://discussions.apple.com/thread/7682316?answerId=30857607022#30857607022

PB22 wrote:

Installed the release version of MacOS Sierra 10.12.1 on my Mac mini (Late 2012) and the problems with scrolling a mouse wheel continue. The problem is very straight forward. When scrolling with a generic mouse (no 3rd party driver) that has an incremental scroll wheel, the screen or view does not scroll with each increment of movement of the wheel. In fact, In order to initiate scrolling, one must scroll the wheel several increments for movement to kick in. The degree to which one must move the scroll wheel for movement to initiate does not seem to be consistent. Almost as if there is some latency involved.

On OS X El Capitan on another computer, using the same mouse, thescroll behavior is correct. One increment movement of the mouse wheel and scrolling takes place.

The practical side of this is that many software applications are difficult to use with a mouse. I find myself constantly having to "work" the view into position. This is an ergonomic nightmare for someone using the computer professionally.

At lease macOS Sierra 10.12.1 fixes the scrolling problem of the Terminal app and PyCharm. They scrolled "lightning fast" on 10.12 with the built-in trackpad, but behave normally in 10.12.1.

However, if the scrolling problem still exists in other third-party apps, I'd think Apple has a serious problem with software quality.

If you are still experiencing mouse/trackpad scrolling problems after installing 10.12.1, then file a bug, and make sure you specify the operating system version, the application(s) you are having difficulty with.

<https://developer.apple.com/register/index.action>

My problem was solved with the last beta release, regarding Osirix App, thank you.

same here! (:

Same here. Can't use adobe suit. Really frustrating working this way. The scroll is without accuracy and is not sensible, i have to use the weel several time to make the scroll start and the result isn't the one hoped. Scroll-zoom with the same issue, accuracy desappeared and starts randomly. Update 10.12.1 seems to resolve it in default mac application, but doesn't resolve for third part app. With El Captain never had issues.

Please file your own bug report (see a few replies above for were to file a bug)

Make sure you tell them you are running 10.12.1

Tell them which mouse/trackpad you are using (make and model) and how it is connected (USB, Bluetooth, vendor wireless dongle)

Tell them the applications you are having difficulty using.

Even if the bug gets closed as a duplication, it is still going to be a factor when management assigns priorities to which engineers work on which bugs, and when.

The more people that file bugs, the higher priority a bug will get assigned.