Screen Sharing: Cursor Freezes

I am using screen sharing with 10.5.8 iMac sharing the screen of a 10.6.2 mac mini. Been sharing no problem for years. Recently, a problem came up. When I click the cursor in a window, it freezes. To move cursor again, I need to move cursor outside shared window, then back in. Problem has been constant for at least last 10 days, maybe more. I can function this way, but it is an annoyance. Any idea what to do to correct?

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Screen Sharing Freezes Constantly

I wasn't sure where to post this.
I have an Airport Extreme Router, two iMacs and a MacBookPro in my house, and an iMac at my dad's house that I screen share via MobileMe/Back to My Mac.
Since earlier this year I experience that Screen Sharing constantly freezes and I have to Quit Screen Sharing and log in again to reset the connection. If outside the house, it requires actually logging out and back in to Mobile Me to reset the connection. And it's supremely frustrating.
When it started happening months ago I thought it seemed to coincide with an OSX update or security update or something like that, but it still is going on months later so that seems really unlikely.
I have Comcast 32 MBPS internet.
Any ideas/suggestions?
Thanks

Hi Nathan,
I've already submitted the problem to the Apple's Support via phone.. but I think that submitting it via web could not be a bad thing, even if I submitted to Apple's Support another minor bug some mouths ago and it has not be solved yet: I think that feedbacks via web form are not so "considered"
Thanks anyway for your suggestion
Regards.
Andrea

Freezing after a few minutes of screen sharing?

Hello, when setting up a screen sharing session on mountain lion with a lion laptop (the ml is being controlled by the lion laptop), the 10.8 laptop freezes after a few minutes of the session. The mouse cursor still works locally, however no clicking or keyboard input is accepted. The remote controller also loses the connection, and a hard reboot is the only thing to bring the computer back.
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Thanks,
Dan

Yes, that is exactly what I am experiencing.
I followed instructions and found that computer was set to log out after 120 minutes. I don't know if that is the default setting or not, but I know I never set it that way myself, didn't even know the option was there.
I have always had the computer set to start screensaver after 15 minutes, display sleep after 30 minutes, and computer sleep after 1 hour. The computer never logged me out with those settings until a couple of days ago when this problem started. I had changed computer sleep to never so I could see if remote desktop on my ipad would be able to connect to the imac, and that is when the problem started.
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Lewis

Screen Sharing and SSH sessions freeze occasionally on multiple mac minis

I have 28 Mac Minis at work. With such a large number of minis, I obviously can't have a monitor attached to each of them so I've got them plugged into a network switch and access them via Screen Sharing (both via regular Screen Sharing and ARD) and SSH sessions.
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One more thing I want to test is the connection between the switch all these Mac Minis is plugged into and one of the other switches that all our other network traffic goes through. I didn't set it up myself so I fear that it might be an old, damaged cable or something. Failing that, I have no idea what the problem could be, which is why I'm posting here.
So, does anyone have any idea what the problem could be? Or any other ideas for troubleshooting the problem? Thanks.
(They're all running 10.6.8, and range from Mid-2007 to 2009 models).

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Screen Sharing via iCloud on Lion Freezes at Login Screen

After updating to OSX Lion 10.7.3, screen sharing between two computers via the Internet allows me to connect to the remote computer and see the remote user's login screen, but as soon as I click on a user to login, the screen share image freezes before I can enter the user password.
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I'm having the same problem screen sharing to a Lion 10.7.3 machine, I get this message.
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Cursor freezes then screen turns blue....

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Any ideas?

Hi, How much Free Space on your HDD?
Two ways to go on this...
"Try Disk Utility
1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
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3. Click the First Aid tab.
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5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
The usual reason why updates fail or mess things up, is if Permissions are not fixed before & after every update, with a reboot... you may get a partial update when the installer finds it doesn't have Permissions to change one obscure little part of the OS, leaving you with a mix of OS versions.
Some people get away without Repairing Permissions for years, some for only days.
If Permissions are wrong before applying an update, you could get mixed OS versions, if Directory is the slightest messed up, who knows!
Or...
I think you should get Applejack...
http://www.versiontracker.com/dyn/moreinfo/macosx/19596
After installing, reboot holding down CMD+s, then when the DOS like prompt shows, type in...
applejack AUTO
Then let it do all 5 of it's things.
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The 5 things it does are...
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
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Disconnect the USB cable from any UPS so the system doesn't shut down in the middle of the process.

Screen sharing: screen refresh keeps pausing but cursor always moves

Hi,
I am screen sharing between two iMacs running the latest Leopard.
Ports have been opened according to the Apple KB. Quicktime bandwidth is set to LAN (both ends have high-speed internet connections), and iChat bandwidth limit is set to "none".
When I screen share the other person's screen everything works fine apart from this:
Every five seconds or so the screen refresh stops completely (the iMac is still working at the other end as I can hear the other person and he tells me what is on the screen). After about 10 seconds the screen refreshes and everything starts working again. Performance during these times is very good.
The odd thing is that when the screen refresh freezes I can still see the mouse pointer moving, and the person at the other end confirms that the mouse pointer is moving and that if I click a mouse button it performs an action at the other end!
I'm assuming that the screen refresh and the mouse handling are actually two seperate functions, and that the problem is with the screen refresh.
Everything used to work fine. Since the last time it worked fine we have:
- Upgraded to the 10.5.5 Leopard
- Upgraded QuickTime through Software Update
- Replaced one of the cable modems. This modem does not have a firewall, and locally everything works fine.
Can anyone suggest what might be going wrong on the screen refresh side please?
Thanks
Darren.

Set the Quicktime streaming setting, goto sys prefs/quicktime/streaming/streaming speed, set to 1.5mbps
Restart iChat.
Tony

Login freezes on iMac with Lion after screen sharing with another mac.

I have an iMac 27" Late 2009 2.8Ghz Intel Core i7 upgraded with Lion 10.7 (11A511). I have screen sharing enabled on this computer, and I accessed the computer with a 15" MacBook Pro also running Lion of the same version. The screen sharing work. However, when I exited screen sharing on my MacBook, and attempt to login again on the iMac, the login is stuck after entering the password.
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Screen Sharing freezing and high CPU usage

Hello all,
I use screen sharing to remote my mac mini as a media server connected to ma HD TV to play movies, music and surf.
Since I upgrade to mavericks on my macs (Macbook Pro Retina and my Mac Mini) I have some troubles with the screen sharing feature.
No problems with the login step, the connexion is fast, all permissions are OK (I saw there were a bug with some RDP release) but sometimes, when I use fullscreen software as VLC, Firefox, etc (not the native apple full screen feature, I just clic on the + at the top of the window), my sreen sharing freeze and I can't do or move anything on the remoted mac mini. I'm unable to close (or reduce) the screen sharing app too, it's totaly busy (But I can see the movie or the website on the 2 computer, there is no deconnection)... I have to kill the process through the monitoring activity.
During the freezing time, I try to use vnc light from my Iphone and I have no problem, I can move the mouse, reduce le VLC windows... As soon I reduce the VLC windows, the screen sharing works again. I also use the logitech TouchMouse to remote the mouse, everything work fine.
Here are a screen shot of the monitoring activity of the Mac running the screen sharing app, we can see that there is a very high CPU usage when I use VLC in fullscreen on my mac mini. The first is in normal mode. The second is in freeze mode. Screen Sharing is named "Partage d'écran".
Can someone help me to fix that, everything works fine with Mountain Lion.

I have a Macbook Pro 13.5" 2.8 GHz 4 core (2 real, 2 hyperthreaded) i7 machine running with 1920X1200 display, 3 virtual screens and VMWare adding a few virtual screens (full sized). I have another Macbook Pro 15" with 2.6 GHz Haswell 8 core (4 real, 4 hyperthreaded). I see the problem using Screen Sharing on the 15 inch (Retina screen) mode simulating 1920 X 1200 pixels using Screen Sharing to the 13.5" Macbook Pro.
When I get the ScreenSharing problem, I have identified it as related to the VMWare screen on the 13.5" Macbook Pro being shown through Screen Sharing on the Retina Screen. Before you conclude it is a VMWare problem, the computations are only on the Screen Sharing client side, not on the server side running VMWare. The mouse gets unusable through Screen Sharing. If I physically move the mouse on the 13.5" Macbook, no problem. If I switch virtual screens, the Screen Sharing goes to normal processing.
I see an appearance of a compute-bound thread on the Screen Sharing client. It takes 100% CPU on one thread, the machine as a whole is 12.5% busy (the performance monitor considers all 8 threads as equal when in fact, they are not).
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If I may hazard a guess, I think I know what the bug is, or at least, what is the nature of the problem that I have. The rest of you may have a different bug. When I have difficulty, it is because I am on a window that suppresses the dock, both in remote virtual screen and on the local machine showing the screen. Two docks are suppressed, one remote, one local. Throw in overlapping windows with changing graphics in the overlapped windows and toss in a mouse on top of that. I think that the Screen Sharing is trying to refresh overlapping windows with mouse and going through the suppressed dock calculations and never converging on what the picture should be. The mouse ends up being the visible cue that shows the time frame for iterating the windows - flickers with a timeframe of greater than a second. That is far greater than the screen update time. It is totally compute bound with all the overlapping stuff that it is deconflicting. At least, that is what I think is going on.
Meanwhile, the VMWare VNC server appears to send out a single graphics context and causes the Screen Sharing client to converge to a picture. Note, the mouse appearance is very different when attaching to the VMWare VNC Server rather than the ScreenSharing native server. I see two mouse renderings, the virtual machine remote and a mouse rendering from my Screen Sharing client side. They are mostly in sync in position unless I move the mouse very quickly. If I use Screen Sharing client and server instead, I usually see only one mouse, the client side's mouse rendering.
I have a solution for my problem. It is similar to using a different VNC server/client pairing. I will use a VNC server for the systems giving me trouble that is not Screen Sharing Server exercising a probable bug in the Client (though, it could be a problem in the design of Screen Sharing itself).

Mouse pointer/cursor clicking fails while screen sharing in Messages & iChat

Has anyone else had this problem?
My work partner is sharing her screen using iChat on OS 10.6.8 and I'm controlling it with Messages on OS 10.8.3 - usually working on Adobe Lightroom and Photoshop.
Every few minutes or so, I lose the ability to click anything on her screen. Audio/video works fine, and my keyboard commands run fine on her computer, I can usually even move the pointer fine but, clicking my mouse or trackpad has no affect on her computer. This is sometimes accompanied by a flashing stalled pointer.
We can usually fix it by having her click her mouse/trackpad a couple times and then I can continue with clicking again from mine.
But, sometimes she's not at the computer so there's no way for me to recover screen share clicking when her computer is unattended.
We both have high speed internet with 10+mb down and 5+mb up speeds.
I've also tried it with bluetooth off and still have the same problem.
Does anyone know how to recover from failed mouse clicking during screen sharing?
Thanks.

HI,
I have not see this but at the same time I do not Screen Share as extensively as you seem to describe.
One interpretation I could out on this from what you have written is that not only is your girlfriend getting bored and wondering Off ( ) but her computer may also be going to sleep.
I have never waited long enough for one of my other computers to go to Sleep during a Screen Share to find out what happens.
1) does the Share Screen go dark ?
2) do you lose the connection as it closes the network ?
3) Is a Screen Saver starting that you can see ?
4) what does your girlfriend see when this happens ?
I would guess there is something about the VNC part of the iChat Screen Sharing that stops the Shared computer going to sleep.
However I am not sure if a Screen Saver can be active or if you are bumping into the time set for one to start.
I would also be interested in what the other computer is doing in a "behind the scenes" way.
Is something using up the Processor cycles and holding up the Share view as it were ?
I would guess her computer is doing something on it's own such as fetching Mail or similar or even the Time Machine Back up which can be known to cause the computer to be held up for a moment or two.
8:36 PM Tuesday; April 16, 2013
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.3)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Screen sharing performance

I have been screen sharing to my desktop for quite a while, with no performance problems. Recently my MacBook will "freeze". For example, while entering a transaction into Quicken, the screen will freeze and will take several seconds for Quicken to show the data I've entered. I've placed the MAcBook next to my destop and entered data through the desktop and it will take several seconds for the MacBook to update.
There are some time where the cursor will freeze in any application when running in a screen share mode.
This just started happening within the past 30 days.

OK, earlier client here:
http://support.apple.com/kb/DL1491
Can someone kindly instruct me how to uninstall the latest version so that I can revert.
AC

Screen Sharing: Cursor Freezes

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