The new macOS Sierra update is to download and install for users, but if you've just decked out your Mac with the latest operating system and noticed that things don't work the way they should, or encounter any other issues, then we have a list of fixes for the most common problems. As more of us upgrade to macOS Sierra, more problems are being discovered, so we will be constantly updating this guide as new problems - and solutions - are found.

• Macbook Air Trackpad Problems
• Surface Book 2 Trackpad Problems

Inevitably, when there's a new release of an operating system there are going to be problems, but don't let the list below put you off, as most people should find the process of upgrading to macOS Sierra pretty painless. If you haven't upgraded already, check out our guide. Mac duggal 12984727 ieena for mac.

If you do experience any problems with macOS Sierra, then don't worry – you're not alone, and we've collected solutions to the most common issues to help you get your Mac working just the way it should. MacOS Sierra problems: macOS Sierra freezes or crashes when installing If your Mac crashes or becomes unresponsive while installing macOS Sierra, then there are a few things you can try to fix the problem. Before installing macOS Sierra, uninstall or disable any antivirus software on your Mac, as that may be causing issues. Press the power button on your machine while holding down the Shift key on your keyboard. Boot your Mac into Safe mode, then try installing macOS Sierra again. It might also be worth switching from a Wi-Fi connection to a wired connection before you download and install.

MacOS Sierra problems: Not enough space to install If you get an error message while installing macOS Sierra saying that you don't have enough hard drive space, then restart your Mac and boot into safe mode. To do this, turn off your Mac and wait 10 seconds, the press the power button. Once you hear the startup tone hold down the Shift key on your keyboard. When the grey Apple logo appears, release the Shift key. Once in safe mode delete any unnecessary files, or move them to an external hard drive, to free up some disk space. Then restart your Mac and try to install macOS Sierra again.

MacOS Sierra problems: macOS Sierra won't start If you've installed macOS Sierra, but your Mac won't start, then restart your Mac and hold down Command, Option, P and R, which will reset the NVRAM (non-volatile RAM). Hold the keys down until the computer restarts and you hear the startup chime for the second time. Release the keys after you hear the second startup chime. The PRAM will be reset as well. For other ways to fix a Mac that won't start, check out our guides.

MacOS Sierra problems: Mac runs slowly after macOS Sierra upgrade If your Mac is running noticeably slower after upgrading, there are a number of things you can try to speed up macOS Sierra. First of all, try restarting your Mac to see if that helps. If it doesn't, force-quit any apps that appear to be taking up a lot of RAM. You can identify these by using Activity Monitor (in /Applications/Utilities) to establish what apps and processes are using up the most CPU or RAM. Its CPU tab lists active processes, with a real-time view of what's going on. To force-quit an item, click it in the Activity Monitor list, then click the X at the left of the toolbar, then confirm you want to force-quit.

Also delete the cache. Open the Finder window, select 'Go' from the top menu and select 'Go to Folder'. In the text box that appears type /Library/Caches Remove the data from inside every folder. Now repeat the process with /Library/Caches (without the symbol).

Running the Repair Disk tool from within Disk Utility may also help, and for more solutions check out our guide. MacOS Sierra problems: apps show 'damaged and can't be opened' error Some users are complaining that they can no longer open certain apps after updating to macOS Sierra. Instead, they're getting an error message that says the app is 'damaged and can't be opened'. To fix this problem you'll need to delete the cache in macOS Sierra. To do so, open up the Finder window, select 'Go' from the top menu and select 'Go to Folder'. In the text box that appears type /Library/Caches Remove the data from inside every folder.

Now repeat the process with /Library/Caches (without the symbol). Clear the PRAM by restarting your Mac and holding down Command, Option, P and R on your keyboard. If the apps are still struggling to load, hold down the Option and Command keys when you click the app's icon. MacOS Sierra problems: slow Wi-Fi If you're experiencing slow Wi-Fi speeds after upgrading to macOS Sierra you may need to delete your current Wi-Fi preferences. These can be found in the following folders using the Go to Folder command (Command + Shift + G): com.apple.airport.preferences.plist com.apple.network.identification.plist com.apple.wifi.message-tracer.plist NetworkInterfaces.plist preferences.plist Reboot your Mac afterwards, as well as your modem or router. MacOS Sierra problems: some Bluetooth devices won't work Some macOS users are reporting issues with their Bluetooth devices connecting to their macOS-updated laptop or desktop. This can be due to Apple's compliance with the Bluetooth Special Interest Group (SIG) outpacing Bluetooth devices that don't adhere as closely to the SIG's standards.

Macbook Air Trackpad Problems

Power-cycling (i.e. Running your devices to zero power and charging them again) all devices involved, including the Mac in question, can solve the problem. If that doesn't work, you may have to revert your Mac to El Capitan until the provider of said Bluetooth device issues a firmware update to said device. But, since most do not do this very quickly, you might be waiting a while. MacOS Sierra problems: Time Machine won't back up Mac Time Machine problems have been preventing Mac owners from backing up their devices since upgrading to macOS Sierra, and the problem is widespread enough that Apple has released a guide on what to do if you can't back up: SMC Reset for the iMac 1.

Shut down the device 2. Disconnect the power cord from the monitor 3. Wait 60 seconds 4. Reconnect power cord 5.

DO NOT POWER UP DEVICE PRAM Reset 1. The computer should still be shut down. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4. Press and release the power button to turn on the computer. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.

Continue holding the keys down until the computer restarts, and you hear the startup sound for the 3rd time. Release the keys.

You can then try backing up again. If that doesn't work, try turning off indexing on the drive you're backing up. MacOS Sierra problems: iTunes won't work You may find that iTunes doesn't work after upgrading to macOS Sierra. The good news is that this problem is pretty easy to rectify, so you'll be back to listening to your favorite tunes in no time! All you need to do is make sure you have the latest version of iTunes (version 12.5.1) installed. You can update through the App Store, or go to the.

macOS Sierra problems: Mac overheats and fans keep spinning Some people have found that after installing macOS Sierra the fans inside their Macs keep spinning, making their machines a lot noisier to use. The cause of fans constantly spinning is if the Mac reaches a certain temperature.

To keep the components in your Mac safe and cool, the fans kick in to help lower the temperature, and sure enough after macOS Sierra has been installed people have been noticing a spike in temperatures. Most of the time this increase in temperature is to be expected after upgrading to a new operating system. PC components get hot when they work hard, and there's little more demanding than installing a new operating system. The fans are just doing their job, so for most people letting your Mac cool itself down after the macOS install will be enough. Sometimes your Mac will work in the background to update various apps, which may result in the fans continuing to spin loudly for a while after the installation. If the fans keep going, then you may need to stop Finder from indexing your hard drive, as this can cause your Mac to heat up. You can see if Finder is indexing your hard drive by opening up the Activity Monitor and looking for any mdworker processes.

If your fans continue to spin loudly and it becomes distracting, you may need to restore a previous version of Mac OS X until a fix is released. ICloud errors iCloud is tightly integrated into macOS Sierra, so it can be very frustrating if you start seeing iCloud errors and messages saying there's a problem authenticating iCloud, which some macOS Sierra users are reporting. To fix these errors, open the Apple menu and click on 'System Preferences', then select iCloud Sign Out.

Next, reboot your Mac, then go back to the iCloud preference window and log back into iCloud. Mouse no longer functions correctly in macOS Sierra Many Mac owners have complained that their mice no longer work - or they work erratically - after upgrading to macOS Sierra. It looks like mice made by Logitech and Razor are having the most trouble with macOS Sierra, which points to a problem with software drivers. That its engineers are working on a solution to these problems, which is expected to be launched on October 1.

Logitech and other manufacturers are also expected to follow suit and release updated macOS Sierra drivers. If you can't wait that long, Razor has published instructions on fixing this problem.

First, unplug your Razor mice and keyboards, then delete RazerHID.kext found in '/Library/Extensions/RazerHID.kext'. Now restart your Mac and your Razor mouse will now work. You may also find that plugging your mouse directly into your Mac, rather than a wireless transmitter or USB hub, may solve this problem. MacOS Sierra video problems and weird color display If you find that your Mac's display starts randomly showing rainbow colors when turned on, especially when it comes to displayign drop shadows in the system UI, then you will need to perform a SMC reset: SMC Reset for the iMac 1. Shut down the device 2. Disconnect the power cord from the monitor 3. Wait 60 seconds 4.

Reconnect power cord SMC Reset for MacBooks with internal batteries 1. Shut down the device 2. Plug in the power adapter 3. Hold down Shift + Control + Option on the keyboard, as well as the Power button at the same time. Release the keys and the light on the power adapter will change color briefly. Boot your MacBook normally Other macOS Sierra problems As macOS Sierra has only just released we're likely to see more issues emerge – although hopefully Apple will be quick to release fixes and updates to combat these problems.

Still, make sure you check this guide regularly, as we'll be updating it with any new problems or issues we find with macOS Sierra. If you've encountered a macOS Sierra problem that we haven't covered here, let us know in the comments and we'll try our hardest to find a solution for you.

With both client and server running the GM of Sierra and 1.8.2-stable-36cd52 the two finger trackpad scroll is not smooth anymore. I have to scroll on my trackpad at least 1 inch before any scrolling happens in the client window then when it does it jumps so significantly that it can't be controlled and is basically unusable. There are no errors in the logs on either server or client. It doesn't matter what app is being scrolled on the client (Safari, Slack, Chrome, etc). Cursor movement on the client machine (thus connectivity) is working great and is smooth, the only issue is scrolling.

It was working much better under 10.11 El Capitan. The client scrolling was not as smooth as when you are controlling the server (localhost) but it was good enough to allow precise control. I'm having the same issue. It seems to affect both trackpad and mouse wheel scrolling. The problem actually happens for me without Synergy even running, but then when going from a Sierra server to a Sierra client, I think the problem multiplies in severity.

It appears that in Sierra, only scrolling a very small amount results in absolutely no scrolling at all. If I slowly turn my mouse wheel one 'click' at a time, the page will never ever scroll - no matter how far I turn the wheel.

My guess is they've (Apple) implemented a change that ignores very small scrolls, but then uses acceleration to ramp up the scroll speed. The big issue with respect to Synergy is that it appears that this 'ignore small scrolls' is happening on both the server and then again on the client. So as you increase your scroll speed, it will go from not scrolling at all to suddenly scrolling pages at a time. Some applications seem to be affected more than others. I'm not sure how much of this can be handled on the Synergy side or if we'll just have to figure out some way of disabling the new Sierra scroll changes. For now I've just turned down my scroll speed in System Preferences, and I always scroll the wheel quickly (these two changes seem to cancel each other out somewhat and make it useable).

So I did find these lines in /System/Library/Extensions/IOHIDFamily.kext/Contents/Info.plist HIDScrollCountAccelerationFactor 163840 HIDScrollCountIgnoreMomentumScrolls HIDScrollCountMax 2000 HIDScrollCountMaxTimeDeltaBetween 600 HIDScrollCountMaxTimeDeltaToSustain 250 HIDScrollCountMinDeltaToStart 30 HIDScrollCountMinDeltaToSustain 20 HIDScrollCountMouseCanReset I tried changing (after disabling SIP) the HIDScrollCountMinDeltaToStart number, but it didn't seem to do anything. I'm going to stop messing with stuff I don't understand now so I don't break my computer. Hi, The behavior has changed a bit for the better with the latest dev build. Now when the scrolling starts, it doesn't accelerate uncontrollably and scrolls at a constant speed. That makes it much more usable. That said, it still takes a lot of finger movement on the trackpad to get any scrolling at all to register on the client compared to native scrolling or the previous behavior on El Capitan.

When scrolling starts on the client it's very jumpy. Each 'scroll event' moves the window significantly and not smoothly.

It's very hard to describe so I made a short video (attached) on the client. The first 4 seconds were controlled by Synergy from the server. The last 4 seconds is the smooth native scroll. I don't have El Capitan installed on any machines anymore so I can't show the more direct comparison. Hope this helps!

Hi Jerry, Not sure about how it's working for others but for me the nightly didn't solve the issue. Still exact same choppy scrolling.

It (or another unreleased unrelated commit maybe related to?) also seemingly caused another problem which is sometimes the cursor flies across the screen when I've barely moved on the trackpad. Previous to the nightly the cursor had been working perfectly - only scrolling was a problem for me. I've uninstalled and reinstalled the release build and the cursor is working great again. Server: Macbook Air - MacOS Sierra 10.12 - Synergy 1.8.7-stable-9799e96 Client: Dell Optiplex 980 - OpenSUSE Tumbleweed - Synergy 1.8.7 I just upgraded my server from El Capitan (10.11) to Sierra (10.12) and am experiencing inconsistent scrolling behavior on the client.

The client has never been smooth, but it was usable and consistent before. Now the scrolling is intermittent and upredictable. Note: I have always had to set -yscroll 56 to reduce the scrolling granularity. Scrolling too slowly with the track pad will no longer cause the client to scroll.

Scrolling too quickly now cause the client to scroll past pages at a time. Increasing the scroll speed causes the client to scroll at slower speeds. Disabling scroll inertia makes the scrolling more consistent.

JetBrain's IDE had a similar issue when Sierra was released. Sierra generates much more events than El Captain. These events contain values 0.1 instead of expected 1. Possibly related to.

Surface Book 2 Trackpad Problems

Thanks for the link. Very informative. It's just discrete bursts for me (not sporadic or lossy).

And I did notice it jumps 120 pixels for each scroll event. I tried launching synergyc with -yscroll 56 to test if it makes the jumpy scrolls more smooth but it didn't work. Scrolls are still jumping 120 pixels each time.

I did see some weird sporadic/lossy scrolling in past versions of Synergy and/or MacOS but I haven't seen that for a while so I assumed that was fixed in recent versions. It was perfectly smooth under El Capitan and really hoping the upcoming releases solve this at least before High Sierra is released which may very well screw it up again. Not sure if this applies to your issue but I stumble upon this issue while searching for the exact same 'scroll lag issue', turned out that I enabled the ' Turn keyboard backlight off after X seconds of inactivity'. I suspect, it (MacOS) turns off/sleeps trackpad too upon aforementioned timeout, and that makes it unable to register the two finger scroll during first few moments.

Surprisingly it doesn't affect the single finger tap/move. Anyway, I just disabled that setting and its all working fine now.