The scroll behavior isn't smooth after updating to macOS Sierra

Yeah , I also opened font book via spotlight to select one font clicked with one single finger , and to scroll down used two fingers , if I'll select all fonts using command + A or moving three fingers from bottom to up side I could select all fonts .

To , deselect them I pressed option key and selected single font .

Thanks !

Exactly the same problem on macOS Sierra.

To re-produce it, right on this page, click your own avatar below the header, then click Preferences. On the Your Preferences page, click the Time Zone dropdown list.

Try to scroll the items in the dropdown list with two-finger gesture on the multi-touch trackpad. It's laggy, unresponsive, and when you scroll more, it suddenly jumps many lines.

There are other serious scrolling issues on macOS Sierra:

• Mouse scroll speed in Sierra
• Problem with trackpad on Mac OS Sierra

Taking the long-list scenario to it's extreme reveals some interesting behaviour. I installed unicode version 9 in Font Book (a list containing 128,237 character entries). Interestingly, scrolling through this list is remarkably smooth at various speeds, accelerations, durations and magnifications provided that the scroll is continuous;i.e. click and drag on the scroll bar to your heart(U+2764)'s content and it's all smooth scrolling but take your finger off the trackpad and all your systems are belong to nope (U+1F494) to a degree seemingly proportional to how scroll-happy (U+1F4DC - U+263A)? you were beforehand. Trackbad!! Perhaps somebody could translate this to scroll-hacky and solve the problem. Until then I guess the take-home message is .... "what scrolls around, comes around" lol

adamzajdlik wrote:

I installed unicode version 9 in Font Book

I'm curious what you are referring to with that. Font Book is normally for fonts rather than lists. Is there a url for the Unicode Version 9 that you downloaded?

I should have said unifont 9; my bad. Downloaded from http://unifoundry.com/unifont.html. Here is a direct link to the ttf file

adamzajdlik wrote:

I should have said unifont 9; my bad. Downloaded from http://unifoundry.com/unifont.html. Here is a direct link to the ttf file

Thanks for that info! So what you were scrolling through in Font Book was the View > Repertoire for that font, right?

Yes. Ive found that the issue is momentarily resolved (for maybe 5 seconds) when i run 'fc-cache -vf /usr/<username>/Library/Fonts'. I checked the size of /usr/<username>/Library/Fonts/.fontconfig/ , which is emptied by the aforementioned command, and it grows to 1.6MB as the scrolling begins to lag. It holds steady at 1.6MB as the lagging worsens and remains there until fc-cache is run again. Is the font cache capacity set too low?

Installed the release version of MacOS Sierra 10.12.1 on my Mac mini (Late 2012) and the problems with scrolling described here and in other discussions continue. The problem I am seeing is also very straight forward. When scrolling with a generic USB 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, the scroll behavior is correct. One increment movement of the mouse wheel and scrolling takes place. Scrolling is reactive and consistent on El Capitan.

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. Thank goodness, I left my MacBook Pro on El Capitan and when I need to use my Mac mini, I use screen sharing and run the Sierra computer from the MacBook Pro. Interestingly enough, scrolling works as expected on MacOS Sierra as long as I access it through screen sharing from my MBP running El Capitan.

Sounds like you should send the details to apple via

http://www.apple.com/feedback

Thank you Tom for the reply. I just submitted my feedback.

I can't work properly with Indesign because I constantly use the scroll to go up and down and to zoom in and out. Displacement and zoom is either too much or not enough. Tried everything, but the smooth scrolling doesn't exist anymore on my mac. Ergonomic nightmare is a fine description of my daywork with Sierra. We are professionnals in 2016, not kids in the 90s, we have deadlines and clients.

I have this same problem. Just updated from El Capitan to Sierra an hour ago, now slow scrolling with my mouse doesn't work.

Scrolling 1 notch does nothing.

Scrolling slowly does nothing.

Scrolling quickly scrolls quickly like you'd expect.

'slow' is actually pretty quick. I'd estimate the slowest I can make it scroll (the cutoff between 'slow' and 'quick') is about half a page a second.

I've love to be able to scroll slower than that, often line-by-line. This affects everywhere where scrolling is possible - Finder, all applications I've tested so far.

I am using a wired EasternTimes mouse with no additional support software.

This happens regardless what my scrolling speed or initial delay or scroll speed is set to. I do not have a trackpad.

I submitted feedback to apple.

so... I found a workaround. it's at least something that fixes the problem. I was considering downgrading the OS, but thought I should try other stuff first. so I googled 'mac mouse software' 😝 I downloaded steermouse, installed it, changed nothing in it's settings, and now scrolling is perfect. I can probably fidget with the settings to make it more than perfect, but at least now I can scroll as slow or fast as I want.

Hi everyone!

I'm getting the same issue since I did a clean install of macOS Sierra: I have a Microsoft Bluetooth Mouse 3600, and scrolling is now a nightmare in Sierra.

Got the AppleCare on phone, guided me trough these steps:

- Boot in Safe Mode;

- NVRAM reset;

- Alternative user account.

Nothing helped! The AppleCare then wanted me to reinstall macOS Sierra and I declined.

Mouse parameters are fine, I'm going to do what suggested Tom and submit a feedback... and cross my fingers!