Q: Mouse cursor lags with external monitor
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Oct 26, 2013 6:55 AMby flo.riano,Also the update to Mavericks on my Macbook Air did not fix the issue. I had to reapply the fix for using RGB instead of YPbPr, but the mouse still hangs...
It would be great to hear if other users with a Macbook Air (13", with Intel HD 5000 Graphics) and a Dell U2913WM have similar issues or if it works. A brief reply stating what MBA model and what Dell monitor you have and whether your mouse cursor runs smooth or not would be highly appreciated.
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Oct 27, 2013 12:03 AMby Corey888,I'm having the same exact issues and I did the same fix that you did as well. Solved the issue with forcing RGB but I'm still experiencing the mouse lag/skipping.
I have a brand new MacBook Air (mid 2013) 13" with an i7 and Intel HD 5000. The monitor I'm running is a Dell 2713H.
Updating Mavericks lead me to forcing the RGB on again but same as you the mouse lag still stayed.
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Oct 27, 2013 2:42 AMby flo.riano,First of all, thanks for your reply. We should try to get to a working solution together.
I have got a few more questions:
1. What cable are you using?
2. Does your cursor skip all the time when the monitor is connected?
For me it's not - it just happens sometimes (but when it happens even an OS X reboot does not help). The last few times I was able to fix it by changing "DDC/CI" and "DisplayPort 1.2" in the monitor settings (menu "Other Settings"). The strange thing is that it does NOT matter whether I disable or enable the mentioned settings. It seems that the only important thing is that I CHANGE the settings - I guess it resets or forces OS X to re-read some display related settings and then gets it right.
3. Have you tried the apple support? I assume that it will not help, as first of all it didn't help the people in the link I posted above and secondly I guess that they just tell us to buy a compatible Apple display (which is not really an option).
I must emphasize again that my Macbook (unibody, mid 2010) does not have these issues at all, so it must be related to the Macbook Air (mid 2013). I assume that there is a problem with the Intel HD 5000 driver.
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Oct 27, 2013 4:50 AMby flo.riano,I just had a chat with Apple support and was advised to bring my computer including the large screen to the next Apple store. I expect that Apple does their testing, evaluation and debugging without the consumers being involved, so I am a bit disappointed. The support person told me that there must be a hardware problem as they do not have a large track of other users having the same problem.
So apparently the problem is not acknowledged as an official bug which needs to be fixed by Apple.
Please, if you want Apple to fix this, talk to the support. Here is a link to the support chat https://getsupport.apple.com/ConfirmationAction.action# . This only works if you have a valid care protection plan. If you don't have one, you probably need to call the service number, which you can find on http://www.apple.com/support/contact/ .
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Nov 3, 2013 7:10 AMby Kraasa,Hi all, I have the same problem when I connect my Philips 272P monitor (27" (2560x1440) via cable display port - no reduction - minidisplayport <> displayport) to my new Macbook Pro 13" with retina display (currently available), the mouse cursor lags at regular intervals during movement. Mouse cursor skip all the time when the monitor is connected.
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Nov 3, 2013 8:40 AMby Kraasa,HelpfulI found a simple solution to stop cutting. Just connect your computer to the monitor and sleep your Macbook (for 10 seconds - when monitor shows: no signal) and then wake the Macbook. Problem is away.. But I wrote in support of Apple and is related to the this problem: http://support.apple.com/kb/TS5296.
I apologize for my bad English.
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Nov 15, 2013 1:18 PMby hongkongs,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~
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Nov 16, 2013 1:26 AMby flo.riano,@hongkongs:
Great job of finding out that Eizo monitors have similar problems - to me it seems ironical that small brands (like Eizo, which I have never heart about before) are working hard to fix these problems whereas huge enterprises like Dell or Apple do not even acknowledge that there is a problem.
Have you found out how one can reproduce the problem? If so, we could provide a proper bug report to Apple (including a video showing the issue) so they can not simply ignore it.
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Nov 16, 2013 3:45 AMby hongkongs,EIZO is a very famous japanese brand who makes professional monitor since the good old CRT days.
It's one of the top brand in the professional level. So they treat their customer seriously. guess that's why
they care about such issue and release the firmware update.
The only way to reproduce the problem is to connect the new mac air to these models of monitor which can
induce this underlying bug. I guess mostly happen on monitor which is above full HD resolution(2560x1080,2560x1440 etc.).
This problem seems to be mostly on the OS side. cuz no matter u use USB mouse or trackpad or even bluetooth mouse this problem also occurs. So it's not a signal interference issue.
Seems to me the display driver have some sort of problems when reading monitor's EDID value. hence the RGB/YpBpr issue.
BTW, if u're using the default YpBpr mode and the screen is blur, u can adjust the monitor's sharpness setting which can compensate that effect which makes it look normal.
But unlike the mouse skipping problem happened to the MBP/bluetooth mouse b4, the mouse skip on displayport is predictible. I mean it skip to the same direction the cursor is moving. it just skip ahead further.
Hopefully more ppl will post which monitor have this issue with the new Air so we can narrow down the problem.
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Nov 21, 2013 6:53 AMby Björn Nilsson,Hello, I have this exact same issue, on my Dell U2713H. Using a brand new 13" Retina MacBook Pro.
When I connect the external monitor, mouse pointer becomes jumpy, on both the external screen and on my MacBook Pro's built-in display.
Like some other ppl in this thread, I can make it go away temporarily by entering the monitors menus and moving around some in them. When I exit the menu the jumpiness is gone. When the MBP falls asleep and I wake it up again, the problem is back (most times anyway).
I never see this behaviour when I connect my gaming PC running Windows 7 to the monitor. Neither did my old MacBook Pro mid 2010 have this issue.
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Nov 22, 2013 12:13 AMby Björn Nilsson,Hi, yes its the new late 2013 Retina MBP, 13", Connected to Dell U2713H monitor.
Sorry I dont want to install Windows/Bootcamp on my new Mac, but I have another PC to test with, that never show the problem.
Does entering the Monitors menus and moving around remove the issue temporarily for you guys too?
