Mouse jumping to 2nd monitor in Lion

I have an odd issue. I have a MacBook Pro (2.5GHz Core 2 Duo / 4GB Ram) with a 2nd, 24" monitor. I use the 24" as my "main" screen and the MacBook display as a secondary. Since I installed Lion my cursor is randomly jumping to the MacBook's display. I haven't found any consistency in this, but it's very irrirating.
Anyone else?

Same issue; my mouse pointer is jumping from the primary monitor to the second monitor on Lion on a 3.06G iMac. I'm using a Magic Mouse but also have a track pad connected. ( The problem happens with using the Magic Mouse while the track page is connected an unused. )
It seems to jump in the direction I've moved the mouse, often more than 1/2 a screen width, often directly to a corner. Since I usually start moving the pointer in a circular motion to the right, the pointer often jumps from the main monitor to the upper-right of the secondary monitor.
The problem does not seem to happen with a wired mouse.

Similar Messages

Mouse jumps when 2nd connected monitor is off. mac mini 2012, 10.8.5

I mentioned this on another thread but will post one on my own.
My mouse skips occasionally (like every 5 secs) on my 2012 mac mini with 2 displays connected. One via HDMI the other using the thunderbolt port with a minidisplay to dvi adaptor.
If the 2nd monitor is off i get the jumps. If i turn it on mouse works ok. I swapped around the connections i.e. connect primary monitor on thunderbold and 2nd on hdmi and still same issue. When both are on mouse is ok.
Also tried with just one monitor connected and mouse works ok.
Its a bug and please apple fix it.
I use a microsoft wired mouse whuch i have for many years and has never caused me any trouble on either my win laptop or my previous imac..I tried another wired microsoft mouse and also a wireless logictech mouse. Same problem.
I also tried with mouse connected directly on the mac and on a usb hub which i normally use.
thats on 10.8.5

well both wired mice (the one jumping and the one not) are not bluetooth. In fact i have bluetooth turned off on the mini.
I do have an external usb3 HD connected but only occasionaly and the problem has been happening regardless of the HD connected.
The mini sits right next to a loudspeaker (i do audio work) but that is supposed to be magnetically shielded.
And in any case all these electrical devices should conform to electrical inetrference standards..
Plus it also happens with the wired mice...
There is a usb2 audio interface connected plus a usb2 hub and a FW800 HD as well if that helps.
Will test tomorrow with all these disconnected and just the mouse and display monitor. (its 4am now here in greece)

Jumpy mouse on 27" imac when using 2nd monitor

Exactly as my post suggests, I'm using an acer AL2016 20" monitor via a mini displayport to DVI adaptor at 1680x1050. What's weird is it isn't always jumpy, just sometimes. But only when the second monitor is connected does this happen.
I've tried this with 2 different logitech trackballs and few different mice, it makes it hard to click on anything because the mouse "jumps"... the speed it moves isn't consistent. I've tried cleaning the trackball, even replacing it. Only thing I can think is the difference in resolution between the two monitors(2560x1440 vs 1680x1050) is confusing it.
Message was edited by: MNMinstrel

Join the club my friend...
http://discussions.apple.com/thread.jspa?threadID=2094178&start=30&tstart=0
http://discussions.apple.com/thread.jspa?threadID=2259048&tstart=0
http://discussions.apple.com/thread.jspa?threadID=2229670&tstart=1

IPhoto window suddenly moves to 2nd monitor

This only happens when iPhoto is open on my primary monitor which is the built in screen on my 27" iMac. When I click on a photo the application will often partially minimize and then jump to the external monitor.
Seperate issue - after exiting full screen the application keeps running but is not on either monitor. I looked and it is also not running on a different virtual desktop (can't recall what apple calls this). The only way to get it back is to close iPhoto and reopen.
iPhoto does not act up with the 2nd monitor disconnected. Other applications do not behave this way.
Thanks! Taylor

hmmm...
i can move the mouse freely between the 2 monitors, going above the menubar to the ext. monitor.
just sometimes, a window won't move up (safari happens mostly; stuck at menubar...)
any other thoughts, anyone?

HT1338 cannot connect my MacBook Air to a projector -does not detect and 2nd monitor. I have a new Mini port to VGA cable made by apple. When I read online I see that many people have the same problem - Is this an Apple defect??????????????????

I cannot connect my MacBook Air to a projector - It will not detect a 2nd monitor or display. I am using an Apple made Mini Display port to VGA adapter. As I read online I see that many other peple are having the same problem. Is this an Apple defect!!???? If so it just burst the bubble about how great macs are. I never had a problem with that on a PC. I hope I am wrong. What can you tell me?

Hi There,
I have had the exact same issue but with a projector.
The issue lies with Mountian Lion 10.8.2.
I tried many a combination with no luck to get HDMI working.
Took my mac into the apple store and came to the conclusion it was the software, so I asked them to install 10.8 onto it (this is destructive so a backup is a must)
Bought my macbook home and voila, now displaying through my projector.
There is a small graphics update after 10.8.1 which seems to be the cause.
Hope this helps.
Thanks.

Mac Pro 3.1 (early 2008) lags since I connected a 2nd monitor - HELP!!

Hey guys,
I just bought a 2nd monitor and i have lags every 5 seconds which
last about half a second (feels like 10 or less fps during the lag).
It happens with all kinds of applications. It gets worse with multiple
applications openend at a time. The crazy thing is that it only occurs
when i start to use both monitors at the same time. When i e.g. use
Logic 9.1 and use one monitor everything runs nice and smoothely
but as soon as i move the window slowly to the 2nd monitor i can
see the window lagging while I'm moving it. This is really annoying
because it seems not every input from the mouse/keyboard gets
into the system and its not a smooth workflow at all.
I switched the monitors connections but it didn't help.
Mac Pro (Early 2008) 2.8Ghz 8-core
Snow Leopoard ( 10.6.2 )
6GB RAM (2x2gb kingston, and the usual 2x1gb)
ATI 2600XT and 3 HDD.
1 Monitor 24" LG W2452T running at 1920 x 1200
1 Monitor 22" Samsung Syncmaster 2243BW running at 1680 x 1050
I really hope that you guys can help me out with this one.
What could be the problem? The ATI 2600XT should definately
be able to handle two screens at once with such little graphics
in logic 9 ?!
I want to run Logic 9 and an analyzer software (Spectre from AudiofileEngineering)
at the same time but its not possible with the LAG.
The problem/lags also occur when i sync the monitors.
Would a 2nd graphics card be a solution? But as I said
before its not a graphics demanding application.
Is it a hardware or software problem?
Summary:
- The whole System lags (not just one monitor) when
I start to use both monitors (having application windows on both).
I've got minor lags when using only one display and leave the
2nd one with the desktop wallpaper clean.
I tried:
-using only the 2x1 GB RAM which came with the mac pro
-using only the 2x2 GB Kingston RAM
Thank you in advance for your help guys!
Rick

Hey all,
I wasn't able to fix this yet.
I did everything I can think of. I even tried to wire
one monitor with a VGA cable but it didn't help.
I even have small lags when I am moving the Safari window
between the 2 monitors. Really little lags then but they
definitely are noticeable. I can make a video of that
if that would help someone understanding.
Hope there is someone out there who can help me with this.
Thanks already for any advice!
Cheers,
Rick
Edit: Do you think a new graphics card like the ATI 4870 would
help it? But I really don't want to spend more money just to
have 2 monitors while i have already 2 dvi connections on the
ati 2600XT.
Message was edited by: RickUnique

Jumpy Mouse when connected to monitor with Thunderbolt-to-miniDVI-Adapter

Hello everybody,
I have a Macbook Pro with Mavericks installed.
I've been working with a plugged in Packard Bell Monitor on my MBP for a few months now, everything went good.
But now, since yesterday, the mouse jumps all over the screen and it's really annoying!
I googled the problem and I now know that it's because of the Adapter I'm using, but it's strange.. I've had this monitor setting for quite a long time with no problems and now from one day to the other, there's this problem..
When I work only on the Macbook without a plugged in Monitor, it works normally and smoothly.
I even bought a new magic mouse because i thought it could be the external trackpad i'm using, but the problem is still here..
I cleaned my deck, cleaned the trackpad, cleaned my hands..
Sometimes the cursor moves only from left to right..
Do you know a way to fix this problem? Buy a new adapter? Buy another adapter? Buy a new monitor?
Thanks for your help!
BTW: Excuse me for my "not that perfect english" :')

Update.
Still having the problem.
I changed the mini displayport to displayport cable:
http://ca.startech.com/Cables/Audio-Video/DisplayPort/6-ft-Mini-DisplayPort-to- DisplayPort-Adapter-Cable-Male-to-Male~MDP2DPMM6
to this cable and am still having the same issue:
http://outlet.lenovo.com/us/en/itemdetails/0B47091/460/8FA0422CA6EA48B0BDED71D28 7F73673
I have heard that the issue may have something to do with the number of pins contained in the cable:Try another DisplayPort cable (One that is VESA compliant). Non-compliant DisplayPort cables may have snyc issues and may also have the # 20 pin pwr cable active. The # 20 pin is not suppose to be active and it may cause damage to your hardware.
The new Lenovo cable does not indicate if it is VESA compliant.
The main issue here is that after the Macbook Pro screen flashes blue upon waking, the screen brightness keys do not function. Only after removing the mini dispalayport cables do the brightness keys (F1&F2) function again.
Would really appreciate it if someone knows how to solve this issue?
Kind regards

Windows xp extended desktop not showing up on 2nd monitor all of a sudden

I've used a 2nd monitor as my main monitor for my T61. I powered down today to move to another location, when I reconnected to my usual 2nd monitor, the screen just comes up blue, the cursor jumps between my 2 monitors, but there is no Windows coming up on the external monitor 2. Usually everything boots up automatically to both of my monitors.......I've gone into Windows XP display settings, extended the desktop - but still nothing - just blue with the cursor either on my laptop monitor 1 or jumping over to external monitor 2. Help?

Try this:
1. Go to Display Settings and set the Display to setting 1. (Multiple Monitors) and exit settings.
2. Press Fn and F7 until BOTH Monitors are Shown.
3. You shouuld be able to select Either or Both Monitors in Sequence.
I replaced my BIOS Battery and had the same problem.

Adding navigator panel to 2nd monitor

I love the 2nd monitor feature in LR2, but it might be cool to allow the navigator to display on the 2nd monitor and disable on the main one. I'll get over it, but it seems to be a bit limited on what can go on the 2nd screen. ..as well as having to hover over the scroll bar to use the mouse wheel in grid mode. It doesn't work by simply being over the grid. ..however it works fine in the grid mode on the main monitor in the library regardless. :(
Love the program.. though it seems to run much slower than LR 1.4
Thanks!
jww

Ryan,
Please provide the brand and model number of the USB-to-video adapter. There are many on the market that seem to be sub-standard in capabilities. My USB-to-video adapter of choice is the eVGA UV Plus+ UV39. It works great on my 7 different computers and 5 different HDTVs.
Please send KUDOs
Frank
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Please click the "Accept As Solution" on my post, if my assistance has solved your issue. ------------V
This is a user supported forum. I am a volunteer and I don't work for HP.
HP 15t-j100 (on loan from HP)
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HP p6787c - Windows 7, 8GB RAM, NVIDIA GT 240

Dual monitors screen management after disconnecting 2nd monitor

I have a 2nd monitor attached to my iMac and if open an app Window on the 2nd monitor the next time I start the app the Window always defaults to the 2nd monitor (even if the 2nd monitor is turned off). Since I don't always remember that the app was opened on the 2nd monitor I would like a way to force the app to default to the primary monitor so I don't always need to turn on the 2nd monitor to move the Window to the primary monitor.
I have tried using spaces for this but it does not seem to work.

Oups.. I got it Just switched the menu bar, when I shoud have switched displays... Mouse was moving to second monitor from left instead of right... Fixed.

New iMac loses 2nd monitor

My new Imac 21 - i7 - Lion - dual monitor (connected with thund-hdmi adaptor) has a strange behavior.
Everything works fine, but when the system goes in power saving mode, on coming back sometimes the second monitor becomes gray (working but no wallpaper), sometimes comes back normally, but ALWAYS all applications windows goes back to the main imac monitor.
I've tried to switch of the 2nd monitor and the behavior is the same. So is not a power saving problem.
It seems that the imac always autodetect monitor situation on the fly and moves windows back to the main monitor.
The problem is that the "moving windows back function" seem to be faster than monitor detection.
Is there a way to say to lion: "I always have two monitor, please don't change"?!?
thank you for help.

I suspect it may be the adapter. I would recommend trying the one Apple recommends here or trying another connections such as a VGA or DVI assuming the monitor has that type of connection.

IMac monitor goes dark; 2nd monitor ok

I have a dual monitor setup on my iMac (2009) running Snow Leopard (10.6.8). The iMac monitor had been working great, but now it goes to a black screen. I am able to access it briefly (for about a second) by lightly pressing the power button on the back. The iMac monitor flashes on briefly when I do this and I'm able to quickly click on user. I used this same method to open Settings and drag it over to the 2nd monitor to change the display setting to Mirror mode, so I'd have access to the dock on the 2nd monitor (Dell 2007WFP).
I have tried the following so far:
     checked cables
     restarted by powering off, pressing on/off button for 5 seconds, unplugging for 15 seconds.
     booted in Safe Mode
     reset PRAM (I believe this was reset, but I don't know for sure because I couldn't see anything on the monitors.)
Other information:
     2.66 GHz Intel Core 2 Duo
     8 GB 1067 MHz DDR3
     NVIDIA GeForce 9400
Thank you in advance for help with this issue!

Replacing FBDIMMs would be today inexpensive and worth doing.
No one knows if heat is an issue without your using thermal sensor monitor. Probably want to up the default fan speeds while at it.
And because you don't have Lion+ then even more reason to setup a small maintenace volume on another drive with OS X basic system for repairs. In fact you should always have a bootable backup or two you can rely on.
Restarting may work, or it may be you have now new issue with corrupt fies or directory that a safe boot even is no guarantee of fixing.
When in doubt, try a clean new OS install on another drive.
And FBDIMMs: $25 for a 2x2GB set on Amazon.com
You want to get the most out of what you have, a small investment in RAM, maybe recycle those drives for 2-4TB units. And an SSD will have system responding better and perform better.
My guess, the 5870 wasn't needed and was overkill and a 5770 for almost half would have been more than adequate.

Main screen window grew onto 2nd monitor

Help. I was working away and my main screen grew into 1/3 of my 2nd monitor. I've had my Imac for 2 years and never had a problem. Now I'm dead. I lowered the settings in Preferences. It made the window smaller, but the MAIN background is still larger than the screen size. Every time I open another program, it's onto the second monitor by 1/3. I've tried everything.
Lion 10.7.5
2011 Imac 24
This is SO frustrating. I've been trying to figure this out for over 10 hours now. There is nothing I can find out there.
Thanks for reading, maybe this has happened to you.
R

Opt>Command>8 fixed it.

New 2nd monitor - xrandr & awesome

I just bought another monitor (yay craigslist!) with the intention of having a workspace stretched across the two of them. Both are 17-in that support 1280x1024. I've got one plugged into the VGA port on my nvidia card, with the other plugged into the DVI (through a DVI-to-VGA converter, since it's VGA as well).
When I'm not running X, output gets cloned to the 2nd screen. When X starts, though, it goes into powersave. Xrandr only shows one monitor:
pearson ~ $ xrandr
Screen 0: minimum 320 x 240, current 1280 x 1024, maximum 1280 x 1024
default connected 1280x1024+0+0 0mm x 0mm
1280x1024 50.0* 51.0 52.0
1280x960 53.0
1280x800 54.0
1280x768 55.0
1280x720 56.0
1152x864 57.0
1152x768 58.0
1024x768 59.0 60.0 61.0
960x600 62.0
840x525 63.0
832x624 64.0
800x600 65.0 66.0 67.0 68.0 69.0 70.0
800x512 71.0
720x450 72.0
640x512 73.0 74.0
640x480 75.0 76.0 77.0 78.0
640x400 79.0
640x384 80.0
576x432 81.0
576x384 82.0
512x384 83.0 84.0 85.0
416x312 86.0
400x300 87.0 88.0 89.0 90.0
320x240 91.0 92.0 93.0
Here is my original xorg.conf that works with one monitor:
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
RgbPath "/usr/share/X11/rgb"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc"
FontPath "/usr/share/fonts/100dpi:unscaled"
FontPath "/usr/share/fonts/75dpi:unscaled"
FontPath "/usr/share/fonts/TTF"
FontPath "/usr/share/fonts/Type1"
EndSection
Section "Module"
Load "record"
Load "xtrap"
Load "extmod"
Load "glx"
Load "GLcore"
Load "dbe"
Load "dri"
Load "freetype"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
#Option "ShadowFB" # [<bool>]
#Option "DefaultRefresh" # [<bool>]
#Option "ModeSetClearScreen" # [<bool>]
Identifier "Card0"
Driver "nvidia"
VendorName "nVidia Corporation"
BoardName "G70 [GeForce 7600 GS]"
BusID "PCI:5:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
and here is what I was trying to get working with both monitors:
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
RgbPath "/usr/share/X11/rgb"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc"
FontPath "/usr/share/fonts/100dpi:unscaled"
FontPath "/usr/share/fonts/75dpi:unscaled"
FontPath "/usr/share/fonts/TTF"
FontPath "/usr/share/fonts/Type1"
EndSection
Section "Module"
Load "record"
Load "xtrap"
Load "extmod"
Load "glx"
Load "GLcore"
Load "dbe"
Load "dri"
Load "freetype"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Monitor Model"
EndSection
Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
#Option "ShadowFB" # [<bool>]
#Option "DefaultRefresh" # [<bool>]
#Option "ModeSetClearScreen" # [<bool>]
Identifier "Card0"
Driver "nvidia"
VendorName "nVidia Corporation"
BoardName "G70 [GeForce 7600 GS]"
BusID "PCI:5:0:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Depth 24
Virtual 1280 2536
EndSubSection
EndSection
which is essentially the same, except trying to follow phrakture's instructions here. This results in a desktop that's the proper size, but only on one monitor - moving the mouse over scrolls the screen sideways.
URandR doesn't support the nvidia driver, and zarfy seems like it would work ok, except it only shows one monitor.
I'm not particularly tied to xrandr - xinerama or somesuch would be ok, but I read that xinerama is deprecated and I should use xrandr, so that's what I'm trying.

FALK wrote:Tried nvidia-settings?
Oh my, that's wonderful!
phrakture wrote:I find this easier to work with, and might be something you're interested in if you just want to distinct screens
I think this is what I want, as well. Right now, via nvidia-settings, it's working great, except for the fact that nvidia-settings doesn't recognize 1280x1024 as a valid resolution for the 2nd monitor, even though it's the recommended resolution for it. I managed to set it using xrandr, though, and it seems to be working fine.
EDIT:
...until I rebooted. It's stuck at 1024x768, and xrandr won't set it higher because it's "not found in available modes".
Normally I'd just add a section to the xorg.conf, but I'm a bit lost as to what's happening in it. Here is the appropriate section:
Section "Screen"
# Removed Option "metamodes" "CRT-1: nvidia-auto-select +0+0"
# Removed Option "metamodes" "CRT-1: nvidia-auto-select @1280x1024 +0+0"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "CRT-1: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
I tried changing it such, but it didn't seem to help:
Section "Screen"
# Removed Option "metamodes" "CRT-1: nvidia-auto-select +0+0"
# Removed Option "metamodes" "CRT-1: nvidia-auto-select @1280x1024 +0+0"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
# Option "metamodes" "CRT-1: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
Last edited by Xiong Chiamiov (2008-11-05 22:58:27)

MacMini (2011) problem with Thunderbolt display if 2nd monitor is connected via HDMI/DVI adapter

Hi,
iam running a MacMini (2011) 2.3GHz i5 with Mac OS X 10.7.4 16 GB 1333 MHz DDR3 256 GB Samsung SSD.
If i connect a Thunderbolt display only - all is fine.
But if i connect a 2nd monitor ( Samsung S23A700) via HDMI / DVI adapter (original Apple) the major screen (Thunderbolt Display) sometimes
is going black and immidiately back to normal. It looks like that it happens very often if i scroll down with the Apple Magic Mouse.
Any ideas?
Thanks in advance
Thomas

I have exactly the same problem. MacMini Server i7 (mid 2011) Macmini5.3.16Gb ram.
Mini and Thunderbolt no blink-outs.
Mini and Thunderbolt and Dell 23" connected to HDMI-DVI connector, the Thunderbolt display blinks out when system is under stress as in the Develop module of Lightroom 4.
I thought it was a problem with my Thunderbolt display, and since its on a VESA mount, I didn't really want to haul in in to the Apple Store. I decided to be sure it was the dosplay...
I borrowed a MacbookPro i7 and ran it from a clone of my Mini. No problems aster hours of use. (But with only ONE monitor.) That suggested that there was no problem with the Thunderbolt Display.
I decided to run the Mini with only one display. Again no problems. I plugged in the Second monitor to the HDMI port and within 2 minutes I had my first "Blink-Out".
I ran the rest of the day without the second monitor with no problems.
I conclude the mini will not work reliably with two monitors if one is a Thunderbolt.
I was using two Dell Monitors before I got the Thunderbolt Diskplay (for 3 months) without incident.

Mouse jumping to 2nd monitor in Lion

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