Mouse cursor lags with external monitor

Restarted. MacBook open, but it's still laggy.

BT off, no change.

The display doesn't freeze, just mouse cursor is laggy.

No, this is an old Microsoft Intelli mouse, and a Logitech RX250. Both are s...t.

Trackpad works fine, but uncomfortable. I have a pain in my hand.

There are times when everything is going well, but soon coming mouse lag. I don't know why... This is not the mouse problem, Apple's software is not good. I have used Windows. Any mouse is perfect, no lag, no delay. I'm tired...

This is definitely an issue that appears when an external monitor is connected. And it is an OS X fault.. really annoying. Did you verify if it is only the mouse cursor or the whole screen that is freezing/lagging?

Only the mouse. I watch a lot of movies, there is no problem.

Yes, it is annoying. I don't like my Mac anymore...

😟

My Retina MacBook Pro 13' and LG 34UM95-P and Logitech mouse is very bad to use. If I buy a new MacMini or Mac Pro will not be a problem for LG Display and Logitech mouse? It's a lot of money and don't want to problem with lagy cursor again ...

Thank you very much for your support!

:-)

Hey guys,

I´m having the same problem here but also a fix (at least it works for me)

Setup: MBA 2014, i7, 8GB, 256GB; LG Flatron 22EA63, Magic Mouse, Steelseries Sensei Raw.

For me unplugging the external display gets rid of all mouse lag, then when i plug in the display again the lag stays away.

So what I recommend is plugging in the display after the mouse is connected.

cheers

Hey guys,

I'm having the same issue.

I'm running mid-2014 MBP 13", the 2.6G/8G model, with 10.10.2. External display is ViewSonic VA2431wm.

I'm using miniDSP-HDMI cable. Didn't try to use HDMI-HDMI cable.

Issue occurs both for trackpad and apple magic mouse.

Unlike Hannes0586, the guy before me, lag not disappear no matter plugging in the display before or after connecting the mouse. I think the order doesn't matter because the trackpad also has the same issue.

The put-mac-in-sleep-for-10-second solution in page 1 seems work for me. But I do hope Apple can solve this issue completely.

I tested again. Wired mouse with no problem, but any wireless mouse is terrible. I'm angry. Grrr! I don't like cable on my table...

I found this thread when searching Google about my own mouse skipping problems. I found a solution that seems to work on my setup, thought I'd share it here in case anyone else found value in it.

I have a MacBook Pro (Retina, 13-inch, Late 2012) with Intel HD 4000 1024 MB graphics and a 27" Apple Cinema Display. With a wired Logitech USB mouse plugged in either through the display or in the laptop's own USB ports I observed the skipping issue. Same for using a bluetooth Magic Mouse. Super wierd.

The way that I have resolved the issue is that I plugged the Thunderbolt cable into the port nearest the power adapter.

I realize this sounds a little weird, and I have no idea why it would work, but it does for me. Good luck.

this also solved the issue for me

i am using logitech anywhere MX and asus monitor

I bought Razer Imperator wired mouse. Problem solved.

Well, mouse laging/ skipping also in my case. I use Mac book Pro Retina, Early 2015, 13', OSX 10.10.2, Dell U2410 for external monitor, Logitech M235 wireless mouse. With age old Typhoon wire mouse everithing works OK.... :-/

The same for me:

Macbook Pro late 2011, 16gb, SSD + Apple Thunderbolt display 27 + latest Mac OS + Magic Mouse + Bluetooth keyboard

- mouse moving not perfect, that's slow down my work process.

No problem on iMac 27.

For those using HDMI

I wonder if the HDMI output on the rMBP is causing wireless interference? I have a Logitech MX with a USB receiver that doesn't play nice specifically when I use the USB port next to the HDMI output. If I move it to the other side of the rMBP I get no lag. I notice the airport card (which includes bluetooth receiver) is in this corner of the body as well so that might be the source of issue re BT mice -though I get no real lag with a keyboard

It might be coincidence (I don't know enough about how HDMI works) that lag is worse when the mouse is active on an external monitor, but I wonder if it could be the increased data transfer out of the HDMI port interfering with reception when actively using an external monitor?

Of course, this doesn't explain the thunderbolt phenomenon but I don't have a thunderbolt capable display to test.

This solution also fixed it for me. I plugged my mouse into the other USB port (on the right side), and the mouse doesn't lag anymore. Have a Dell U2711 connected via DisplayPort connector. So there does seem to be interference with something.

Buying additional hardware is not the correct solution!

Mid 2012 Mac Air with Vizio monitor having same issue with internal trackpad.

Nothing works.

Why doesn't Apple step up to the plate and help out on these forums?

Would it be so hard on their shareholders?