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Magic Mouse lag issue.. new insight

Hey guys, as many of you i've purchased new magic mouse and been having problems with lag, and unresponsiveness.. I own a 24' imac which i bought a month before the latest update.. This whole situation is so bad for me that it really renders the mouse useless. However, i did find out few interesting things.. First off it only happens during the time HD is working overtime... For example if i am using apps that load up the cpu after a while it will start to lag. As soon as i turn them off, it all back to normal.. Games as well.. I recently tried to play world of warcraft with the mouse and it worked fine until the game made the imac go into overdrive and fans began spinning fast. The mouse started acting up again.. And most recently I realized it lags like **** when my time capsule is doing a back up.. As soon as time machine finishing working its all back to normal.. Very strange.. still no fix but that's what i could figure out so far.. Try it and see if you have those same symptoms.

15' 2.5 MacBook Pro & 24' 3.0 iMac, Mac OS X (10.6.1)

Posted on Nov 3, 2009 12:33 AM

110 replies

Steffanj

Level 1

0 points

May 25, 2010 12:48 PM in response to Darko Ibrahimpasic1

I changed my Channel from 1 to 36 and frequency from 2412 to 5180 on my Linksys Router and now my lag problem is gone.

Jul 15, 2010 1:11 PM in response to Darko Ibrahimpasic1

I was having the same lag issue with my AirPort Extreme base station. I have an external USB connected to the Extreme and use with Time Machine. When a backup is occurring the Magic Mouse has some serious lag, and from what I can see extra battery drain.

I fixed this issue by switching to the 5GHz band. However, this does not suffice as there are two iPhone 4s in the house which, even though use WirelessN, only supports the 2.4GHz band!

I am seriously considering returning my Magic Mouse!

knurd

Level 1

8 points

Aug 18, 2010 12:37 AM in response to omaxmedia

This works! Thank you omaxmedia! In case anyone wants to know how to do this on an iMac, you need to press CommandOption+PR at startup (P-RAM reset). I usually do it 3 times in a row...at least once a week. Seems to clear up any stupid problems that Leopard causes...including Firewire 800 drives not being recognized by my iMac.

n2citrus

Level 1

0 points

Sep 27, 2010 4:29 PM in response to Darko Ibrahimpasic1

I am also having a lag issue. I spoke with Apple tech support and they are aware of the problem I was told, but they do not have an "official" workaround yet. I purchased an ASUS USB-BT21 antenna on ebay, as suggested by others with the same problem, and hope it will be a quick fix. If not, I will give Apple another call.

labeck

Level 1

19 points

Sep 28, 2010 9:17 AM in response to Darko Ibrahimpasic1

My Magic mouse drives me crazy while using InDesign CS5. Supposedly there is a third party preference called Magic Pref that can change sensitivity settings. Have not used it yet though.

Oct 19, 2010 7:37 AM in response to Darko Ibrahimpasic1

I have a Time Machine HD hooked up to my Airport Extreme and have always had the lagging mouse issue with my Magic Mouse and Mighty Mouse whenever Time Machine fired up. It was always really annoying especially when it was doing a multi GB backup and I just changed my Airport to use 802.11n 5ghz only. This seems to have solved the issue and its currently backing up 5.5GB with no mouse lag whatsoever.

lundejd

Level 1

19 points

Nov 15, 2010 5:26 PM in response to Robert Wong1

I did a lot of the suggestions in this thread... in the end I noticed I had some cat hair lodged in the sensor area of the mouse (came off the mouse pad apparently) - cleaned it out, now things are working fine again.

So while humorous maybe check to be sure there isn't anything in there... it really appeared to be interference of some kind in how it acted.

Love my cats.. but my magic mouse apparently doesn't.

mdscotti

Level 1

0 points

Dec 6, 2010 8:02 AM in response to Darko Ibrahimpasic1

I am having the same issue, bad performance and lag of mouse movement. However it only occurs when my Macbook Air is close to the mouse. I use the wireless mouse to control my personal desktop, and have my MacAir on the desk (for work)... All this only started after I installed a Time Capsule which I'm using without the wireless turned on. The MacAir is backing up to that via the Home Wireless network not the built in Airport. So in essence the time capsule is a NAS device. Strange problem, but when I shut down the MacAir the Magic Mouse works great, so I'm sure that is the issue...

Jan 8, 2011 3:48 AM in response to Darko Ibrahimpasic1

I've tried everything and unfortunately cannot change my wireless router to 5Mhz. I tried however this very simple thing and so far it seems to work:

Just remove the battery cover from the magic mouse!

It seems to solve a lot of my problems. Haven't test it for a while but will come back if the lag problems remain.

Olga1982

Level 1

8 points

Jan 20, 2011 11:33 AM in response to Boldman17

thx boldman, this seems to fix the problem indeed. the magic mouse is much snappier when the battery cover is removed. however, i will go back to the store. this is unacceptable. this thing costs 70 euros

Mar 2, 2011 4:36 PM in response to Darko Ibrahimpasic1

Just wanted to chime in on this as well. I have:

2010 Mac Pro with Magic Mouse (via built in bluetooth)
Macbook 2008
Latest Airport Extreme Dual band

Using the Magic Mouse on the Mac Pro is usually fine. My setup is, Mac Pro on floor about 3-4 feet away from Mouse. Airport Extreme on table about 2-3 feet behind mouse.

If I use my 2.4GHz network on my Macbook, and start a large file copy from the Mac Pro (4+GB), the mouse is EXTREMELY jittery. Almost unusable. Once the copy is done (or cancelled) stuttering goes away.

If I do the SAME copy but use a dedicated 5GHz only network (my Airport is setup to separate the two into two SSIDs) the mouse doesn't stutter.

This is clearly 2.4GHz interference issue. I'm guessing Bluetooth operates in the 2.4GHz range?

@Boldman17 - removing the cover of the Magic Mouse didn't seem to help at all.

-Kevin

Mar 11, 2011 9:59 PM in response to elastic

Just another Mac Pro user here... this rewire worked an absolute charm! Magic Mouse lag issues seems to have vanished altogether. For others interested in reading how to rewire your bluetooth and airport to fix this issue, click here: http://forums.macrumors.com/showthread.php?p=9723378#post9723378

The author has also provided a PDF download for the directions (as you will want to turn of your tower). That can be had here: http://www.thelocale.org/files/howto...ooth-howto.pdf

Looks like a close to 100% resolution to the lag issue, at least for Mac Pro users. Enjoy

Mar 12, 2011 12:36 PM in response to Darko Ibrahimpasic1

Had the same problem with both BT mouse and keyboard on my new MBP 13" i5. Changed the WiFi channels of my router. Problems gone!

See here: http://discussions.apple.com/thread.jspa?threadID=2780416&stqc=true

MacDokie

Level 1

0 points

Mar 31, 2011 2:31 AM in response to Darko Ibrahimpasic1

The SHIFT-CMD-OPTION solution worked for me! Thanx a lot!

MacDokie

Level 1

0 points

Mar 31, 2011 2:45 AM in response to Darko Ibrahimpasic1

**** it's back again GRRRRRRRRRRR.

Magic Mouse lag issue.. new insight