Magic Mouse tracking poorly and losing Bluetooth connectivity since Mountain Lion upgrade

My problem with losing my BT connection to the Magic Mouse began more than a month ago. One day, it started and I've had the problem ever since.

In my case, it was also taking forever to reconnect.

Apple guided me through either the PRAM or the SMC reset (can't remeber which) and it reduced the number of disconnects by 95% or better.

I've noticed that there are more frequent disconnects after I replace the mouse's batteries. After a few days, the frequency of disconnects falls to a low enough level to be tolerated.

In all this time and hundreds of mouse disconnects, my Magic Pad and keyboard soldier on. That's the saving grace.

Come on, Apple, get this bug fixed.

Same here on my Mac Pro 2012 with Mountain Lion 10.8.1

Actually the problem occured after a clean install with ML 10.8.0

Have been on the phone with Apple for a couple of weeks now. Must say they've tried very hard to help.

Followed tons of steps of which none seem to help, sometimes the problem disappears for an hour, but pops up after that.

Genius has sent me a 'Capture Data' App, which I had to run and sent logs to Apple. Waiting for a reply now.

Same for me! Magic mouse is sluggish especially when I connect my macbook pro to my thunderbolt display. Almost unusable. Then randomly looses connection. Tried all the suggestions including the P ram reset etc and nothing improves it!

Come on Apple bring out a fix!!!!!!!!!

I have the same problem with the connection loss, however I can not confirm the strange movement. I hope, they will fix it soon.

I am having the same issue. Brand new Mac Pro, out of the box. My magic mouse will work for 10-15 seconds and then the tracking is jittery or distorted and not true to my hand movements. I've adjusted the settings for the mouse to make the tracking the fastest that it will go... no luck.

I was reading in other forums to try connecting another mouse, which I did but with no luck. Same thing. I'm guessing that this is an issue with the Bluetooth built into the system and not the actual mouse? At least in my case, it seems to be.

Hoping that there is an update soon. Until then, I'm forced to use an old USB mouse.

I have the bug also

I have the same problem ever since I bought my mac pro in 2010. It got better with snow leopard. But now even the pairing will very often not work.

Tried another bluetooth usb device, which seemed to help but after upgrading I have to buy a wired mouse or use my robust bamboo pad.

Why does the same magic mouse works perfectly with my macbook pro with all OS but never with MacPro's?

Hi all! New on here, but getting my fair share of bugs, this mouse connectivity issue being one of them. I hope this helps 'till Apple can get round to curing this irritating glitch.

So, if you find that on return to your mouse after a period of inactivity, that it seems as if someone else is controlling your mouse or it shows jerky awkward tracking... simply use your track pad or get mouse pointer to right click the Bluetooth icon in the top right menu bar (see screenshot image below) and just turn off Bluetooth and then quickly back on again before you lose your mouse session altogether, otherwise you must re-connect in system preferences. This seems to work better than switching the actual mouse off via tiny up-down switch underneath, which for my mouse does nothing. Like I said, this gets me out of trouble and is certainly not a fix — it will no doubt go awol again until issue is escalated. I've also now got my mouse set to 'discoverable' after reading a few other posts on here. Thanks and good luck.

Not sure of the "Turn Bluetooth Off" has completely corrected the issue, but I haven't had any issues since doing the suggestion in the picture. Hope it stays that way!

I'm seeing some of the same myself. The mouse is jittery and overly responsive. Discontinuing use of a mousepad improved responsiveness, however it is still rather twitchy. Mouse sensitivity is turned all the way down in multiple OSes, but still persists.

As for the Bluetooth disconnecting issue many are seeing, I see it on my laptop when switching OSes & sometimes when resuming from hibernation. Switching on the Magic Mouse when the screen returns to normal is most likely to work, although sometimes I must resort to forgetting the mouse & re-pairing. I feel that these issues are likely related to the Bluetooth stack in each OS.

Touch tracking (scroll & zoom) are gone under Windows 7, due to Windows selecting an old 2006 era basic Bluetooth accessory HID driver. I've found a few possible packages that I hope will improve the issue. Expect further updates once I try the packages provided.

Cheers, Dan

Baahh Hummagicmouse-Bug. Back to the Mighty Mouse, whos scrolling whell continually get clogged.

I'm on a MacPro 2009 if that matters.

This is also happening to me on a 2011 Macbook Pro. Except it wasn't until recently that this all started. I can't pinpoint exactly when it was but maybe it was a recent patch?

The problem happens with both my Magic Trackpad and my 2 battery blutooth apple keyboard (less than a year old). It's extremely frustrating and the frequency of which it happens is absurd.

Before finding this thread, I tried restarting the bluetooth quickly, leaving it off, repairing the devices and turning off all possible interferences. Nothing has worked.

If you post the actual link to the ticket, I'll add my hat into the ring of people needing this resolved. Right now it just links to the sign-in form.

Hi again folks,

After three attempts of resetting the pRAM on my new Macbook Pro in lieu of curing the strange jittery Magic Mouse via Apple Support- I eventually got a new mouse sent out under warranty... New one arrived two days later, same problem...!! Which then aroused suspicion that maybe the Macbook bluetooth unit maybe faulty???? SO I simply thought long and hard and eventually tried a different idea... I simply changed the Wifi™ channel on my 60MB Superhub Virgin router from recommended channel 12 to 11!

I think it's sorted...??? -I'll let you all know my findings in a few days of testing on this channel avoiding channel 12 totally . Yes, I know Bluetooth™ and Wifi™ are seperate entities; but there is interference on all wireless gizmos and it may be that this new channel is simply clearer. I did notice the jitter was triggered by going onto youtube, especially in HD on my Thunderbolt 27" screen, which incidentally is how I figured this out.

Although Wifi ™ and Bluetooth™ are designed to co-exist they apparantly both hate the interference caused by each other's wide spectrum, especially now almost every house is churning 2.4 Ghz out by the bucket load and Bluetooth devices are now breaking a lot more transmit distance rules by their manufacturers. Try a different channel on your wirelss router (see your instructions on how to log in and change this if not sure) and let me know your findings.

Steevi

Solution that seems to be working for me.

1) Deleted my Magic Mouse within the Bluetooth controller within System Preferences.

2) Deleted any Bluetooth Preferences within the System Library > Preferences folder.

3) Restarted my computer.

4) Used "Set up Bluetooth Device..." assistant to reconnect my mouse.

I have had only one minor incident within the last two days, when I went to click my mouse and my computer said "Mouse Connected". Seemed normal, considering the alternative was the mouse not responding.

Hope this helps!

Hi All-

This is a software issue. Been searching far and wide for a solution. Nothing.

Try this:

Open a Flash video in Safari(like a YouTube video), then open Activity Monitor and watch as Flash uses over 100% CPU power. THIS is what is killing the Magic Mouse. When OS X is doing something intensive, the mouse slows, gets jittery and unresponsive.

It is a software/mouse driver related issue with Mountain Lion. Never had this problem before I clean installed this OS. Flash is a hog to begin with, but it shouldn't kill the entire CPU. They need to look at why this is happening.

Apple please fix!

Thanks. -J