Level 1

14 points

Mouse cursor lags with external monitor

hello,

i have just purchased a dell u2913wm monitor with a native resolution of 2560x1080. when connected to my macbook air (with mountain lion) using a mini displayport cable my cursor starts lagging on both screens. basically, when i move the mouse along a line on my desk the cursor results in a very erratic trajectory. this occurs when using a usb mouse and with the integrated trackpad. if the monitor is turned off or unplugged the mouse is smooth again. .

a similar problem was reported a few years ago but somehow the thread is just archived ( https://discussions.apple.com/thread/1965949?start=0&tstart=0 ).

also, i had trouble with the monitor that osx recognised it as ypbpr, so i had to force it to treat it as rgb device, because otherwise the image was unsharp.

on my macbook (mid 2010) running mavericks the cursor is smooth, so the monitor and the cable are apparently not faulty.

MacBook Air, OS X Mountain Lion (10.8.5)

Posted on Oct 24, 2013 12:23 PM

Top-ranking reply

hongkongs

Level 1

0 points

Posted on Nov 15, 2013 1:18 PM

I have the same config. 2013 11" Air 8G i7 HD5000 iGPU connected to

a Dell U2913WM over displayport since Sep.

The mouse skip every few seconds. and I was lucky enough to discover the same method as

flo.riano (switch between the "displayport 1.2" in the monitor's settings) so I can using my system *_^

I ask apple about the problem but haven't receive any response.

A few things to note:

1.If connect the monitor to my AIR using DVI converter have no problem.

2.I didn't force EDID to use RGB mode b4 I discover the switching trick. So it shouldn't be related

to the RGB mode issue.

3.It work on my machine if it's running bootcamp with Win7. So the Windows driver is ok.

So most probably a problem with the display system/driver in OSX.

4.My colleague's 2012 mac air connect to my monitor(Displayport) just fine.

5.A PC using ATI 7970 connect via display port have no problem too.

6.Although I believe a display driver update should fix the problem. I also notice EIZO release a firmware for

one of their monitor which seems to have the same problem. So it should be fixable with a monitor firmware update as well.

http://www.eizo.com/global/support/compatibility/fw1_01/index.html

7.This problem appear on different model of monitor from different manufactures, So it's not a problem

with paticular manufacture's problem

If anyone from apple is reading this, please put this in the bug list.

THIS IS A REAL BUG/ISSUE and not some isolated compatibility problem.

Goodluck to us~ 😝

View in context

208 replies

Jan 31, 2015 1:45 AM in response to TigerCat-hu

I use these, because Logitech Control Center app is not available in Yosemite:

SmoothMouse, Scroll Reverser, BetterTouchTool, BetterSnapTool

I turned off everything, but doesn't help.

Jan 31, 2015 2:46 AM in response to riddler667

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

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

😟

Feb 10, 2015 12:55 AM in response to riddler667

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...

bruno.i

Level 1

4 points

Feb 19, 2015 2:23 PM in response to AltoidTin

this also solved the issue for me

i am using logitech anywhere MX and asus monitor

May 7, 2015 1:39 PM in response to saphirblanc

I'm currently using OS X 10.10.3 and your tip did the trick! Thanks!

Yojimbow

Level 1

0 points

Sep 18, 2015 10:15 PM in response to nakrill

So happy to stumble upon your message, and couldn't believe it was so simple (and dumb 😉 ) !

Mouse lag stopped instantly.

You're the best.

blugray

Level 1

0 points

Oct 7, 2015 9:27 AM in response to Kraasa

this works... thanks much, its a big problem to work with this nonsense happening.

Sep 22, 2016 6:32 AM in response to hornsofalligin

this worked for me. Thanks!

jokerg7

Level 1

4 points

Dec 1, 2016 7:21 AM in response to flo.riano

Man thank you for this so much.

I was just about to return a great display as I couldn't handle the lag. This resolved it ALL!

ctrip

Level 1

12 points

Dec 8, 2016 4:16 PM in response to R.Beck

This one works like magic. Though Apple should fix the issue so that we don't have to use such tricks.

pilotkid

Level 1

8 points

Jan 16, 2017 2:19 PM in response to mihaifromtimisoara

Is the foil still working for you? I'm "trying" to use my Magic Trackpad with a HP Envy 32 external monitor with my 2015 MacBook in clamshell mode and my trackpad is basically unusable. The mouse just skips all over the screen...I am also having a delay with my Apple Bluetooth Keyboard!

itqc82

Level 1

4 points

Feb 13, 2017 2:19 PM in response to pilotkid

No it hasn't been fixed. I deal with this issue since 2013 and I must admit that I am very frustrated that Apple did nothing to fix it so far.

I will soon change my laptop and I don't plan to buy another Macbook. This is sad since I used to like those computers.

Mar 23, 2017 1:22 PM in response to flo.riano

I'm experiencing the same BT mouse cursor jumping with a brand new MBP 13" 2016, and an external new Dell 22" monitor, and a logitech mouse. I'm connecting via a usb-c dongle/adapter to HDMI to feed the monitor. Is it an issue with the monitor or HDMI?

In my last job I had a 15" MBP 2012, and external dell monitor that worked fine with the same mouse, but it was connecting via miniport to VGA connector (I think).

Issue makes the $2500 MBP a piece of junk. go apple go.

annivun

Level 1

9 points

Apr 24, 2017 3:27 PM in response to jasdipBoy

This, combined with the resolution issues of external display's makes me think all the designers live in a cocoon bubble of Apple everything. The business world does not, and they need to go out and see how their products are used.

Highly thinking about switching back to Windows on my next purchase.

csfulham

Level 1

4 points

Jun 7, 2017 1:55 AM in response to flo.riano

SOLUTION:

I too think this is a wireless interference issue with the HDMI cable and the wireless mouse's USB antenna.

I found the same with my MBP model A1502:

- External Dell monitor creating terrible mouse lag.

- HDMI port adjacent to the wireless mouse USB antenna.

- I switched from the HDMI port to using the Thunderbolt port on the opposite side of the MBP

(using an HDMI->Thunderbolt adapter)

- No more lag.

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Mouse cursor lags with external monitor