Mouse scroll speed in Sierra

Please also report this to apple!

stefanfromwetter wrote:

Please also report this to apple!

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Updated yesterday to Sierra
Started to have problem with scrolling and mouse sensitivity - Magic Mouse

JetBrains WebStrom scrolling just went crazy fast and adjusting scroll speed is just doing nothing.

Reset SMC and NVRAM fixed these problems. I cannot assure if everything else had an influence, certainly now mouse is responsive and webstorm is scrolling as usual like in El Capitan was

This has been an issue either since the very first beta of Sierra or perhaps the second. I filed reports throughout the entire beta process to no avail.

While it seems like you have fine control over scrolling, what is really happening is that there is a "minimum scroll speed" in the Terminal window (and perhaps others, but none of the mainstream Apple apps that I have seen). So if you use inertial scrolling where you let go and it keeps going, you can see clearly what is happening: the scrolling slows down as it always has, but then a second or two before it comes to a stop, it gets stuck at a minimum speed below which it refuses to go. The result is disorienting and makes it seem like the scrolling actually speeds up before coming to an abrupt stop.

So this is related to and the cause of difficultly you have when you try to scroll manually by a line or two at a time, and so that's nearly impossible, and again, feels like the scroll speed is too fast. And in a sense it is, but going into accessibility to adjust the scroll speed has no effect because - wait for it - there is a minimum scroll speed below which the Terminal will not scroll.

And for me it's just the Terminal app. Not Mail, Safari, Sublime Text, Xcode, iTunes, TextEdit, Chrome, Photos, or any other app that I have encountered so far.

Oh - and resetting PRAM/NVRAM and performing an SMC reset had no effect. It's a software issue that strangely doesn't impact scrolling in all apps. Weird because you'd think that scrolling is just a built-in feature that is handled automatically.

Hi ... sorry, I have to correct your post: It also occurs in Safari!

If you open an webpage with an pop-up for selection of values, like country or time-zone, you can't scroll through the values without the stop & run effect

Everyone with experiencing this problem, please file your own bug describing your situation.

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Do not depend on someone else, and do not assume a single bug report will cause something to happen. Each individual case will provide different information, and you never know if it is your report that will provide the critical detail. Also managers make decisions on where to have developers work, and whether it is the new hire or the experienced developer work on a bug. The more bug reports, the more likely it will get faster experienced attention and a fix show up on a point release sooner.

I am having issues in Excel - it's NOT sensitive - I try to scroll and it does nothing, then when I scroll "harder" it goes up by 3-4 lines. I cannot scroll one roll at a time... 😟

I also cannot use Quickbooks '14 any longer which is unfortunate, but not the same type of issue.

spygirl007 wrote:

I am having issues in Excel - it's NOT sensitive - I try to scroll and it does nothing, then when I scroll "harder" it goes up by 3-4 lines. I cannot scroll one roll at a time... 😟

I also cannot use Quickbooks '14 any longer which is unfortunate, but not the same type of issue.

Please file a your own bug report and tell them your issues from your perspective

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The same story. Fast unusable scrolling in Eclipse, Phpstorm.

Does somebody know how to fix that?

laviro wrote:

The same story. Fast unusable scrolling in Eclipse, Phpstorm.

Does somebody know how to fix that?

So far no.

Please file your own bug report to add pressure for a fix from Apple

For JetBrains (webstorm, phpstorm ...) products temporal solution can be found here https://youtrack.jetbrains.com/issue/IDEA-158500

As I understand problem because of Java.

Same here with the app Osirix. Its impossible to work with this speed.

I have this issue with multiple apps, on the official release of MacOS Sierra.

I found this on stackoverflow:

http://stackoverflow.com/questions/39638718/after-mac-os-sierra-update-facing-sc rolling-issue-with-java-applications-lik…

It looks like JDK issue and is reproducible with a simple scrollable JList. Sierra generates much more events than El Captain. These events contain values ~0.1 instead of expected ~1. But Java converts these small number to 1 anyway.

Have faced with same bug , i can't work (NetBeans IDE) after upgrade to Sierra!!!

unfortunately, i'll have to downgrade to ElCapitan

if i only knew that Sierra is so unstable !!!, disappointed