IChat Screen Sharing Stops when Switching Between Displays

Hi. Have been doing iChat quite nicely with my Dad for years and now I have a problem. Running current Snow Leopard 10.6.2 on both Macs, iChat 5.0.1. I usually hop onto his screen to help him solve problems, answer questions, do updates, etc. Until very recently, I have been able to switch between his desktop and mine by clicking on the small alternate display window. I could work on his computer and mine by simply switching between them in this manner. Now, suddenly, iChat screen sharing stops when I click on my display in the small window. This action returns me to my display, but the screen sharing session ends and I need to request it again. Any idea what might be going on here? I'm stumped. Thanks.

Hi,
Is there any chance you are clicking on the top left hand corner (where the red blob would be) as this will Quit Screen Sharing ?
10:13 PM Friday; January 15, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

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IChat screen sharing stopped working

Me and my girlfriend have identical Macbook Pros, and we've been utilizing the screen share capability of iChat for about a month and a half now. Today her capability to screen share stopped working. Nothing has changed recently, we haven't changed any system settings (that we know of) my screen share is still an option, but her screen share is greyed out. Screen sharing enabled is checked on her video option so we really have no idea what else to do. Any ideas?

Hi,
She should do a Speed test
http://www.speedtest.net/ (Use the Yellow Star in the main window)
Are the reported speeds near what she pays for ?
(they are typically shown at about 80% of what the ISP claim to supply)
Try cutting the power to the computer, any router and modem then start them up Modem first, then router then Computer, allowing things to be come established at each device and see if things improve.
If that does not work she should delete com.apple.ichat.plist and then restart iChat.
8:06 PM Wednesday; February 24, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Graphic distortion when switching between external and built-in display (rMBP)

Recently (within the past two weeks or so) I've noticed a strange issue when switching between my external display (Thunderbolt) and my built-in display on my 15" rMBP. The following issue seems to be specific to Photoshop CS6.
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CC aplications go to white screen and lock up the computer when switching between apps

We have been successfully using CC for several months, then about 30 days ago suddenly when we tried to switch apps between dreamweaver, and Photoshop the computer went to a White screen and froze. This problem is completely repeatable, and we are at a complete loss to correct the problem. Any ideas? It doesnt do this when you switch withing Bridge and Photoshop, but with anythign else,,,,,,,,,,,,,,, CRASH!!

I am unable to get into the chat. I tried explorer and chrome and neither will allow us to access the chat. It continues to go around and around.
De: John T Smith
Enviado el: Thursday, November 20, 2014 8:41 PM
Para: Beatriz Neto
Asunto: CC aplications go to white screen and lock up the computer when switching between apps
CC aplications go to white screen and lock up the computer when switching between apps
created by John T Smith <https://forums.adobe.com/people/JohnTSmith> in Adobe Creative Cloud - View the full discussion <https://forums.adobe.com/message/6949285#6949285>

IChat Screen Sharing will not work when VNC will?

I am finding it impossible to get Screen Sharing working via iChat. I'm not surprised, as iChat seems extraordinarily balky at doing anything other than text chat. However, what confuses me most about this is that the Connection Doctor 'Capabilities' tab suggests that the net connection for my family members (1024/128) is "too slow" for Screen Sharing - yet I have been using OSX VNC for two years perfectly successfully to do so?
Does using Screen Sharing directly have the same limitations?

Hi,
In System Preferences > Quicktime > Streaming change the Speed to 1.5Mbps
This should change what iChat sees as being Capable off once you restart iChat.
The VNC app Screen Sharing that Opens form the Finder > Go > Go to Server VNC:// does not include a Audio component.
This uses less bandwidth than the iChat Screen Sharing which does include an Audio stream.
Also the Screen Sharing is done on a separate port to the Audio part and from testing seems to be a random choice.
For this reason we have been suggesting using UPnP in any modem or router to allow ports.
Apple have not said what ports it uses
http://support.apple.com/kb/HT1507?viewlocale=en_US Tiger A/V ports and Bonjour and Jabber
http://support.apple.com/kb/HT2282?viewlocale=en_US Leopard A/V ports (It should say but does not that you still need the Jabber and Bonjour ones if using them).
This doc http://support.apple.com/kb/HT2020?viewlocale=en_US says you need iChat to see at least a connection speed of 128K UP and Down for Screen Sharing.
It is known that iChat Screen Sharing is based on Apple Remote Desktop but it does not use the same ports (5900 and 5988).
2:06 PM Saturday; January 10, 2009

File sharing and screen sharing stop working suddenly

I have been using file sharing and screen sharing without any issues between my mac mini (10.7 Lion) and MBA (10.8 ML). However, both suddenly stopped working the other day - that is, I saw the mac mini on my MBA's list of Devices, but when I clicked on a drive or on screen sharing, it just said could not connect. I rebooted the computer and they started working again...but a few hours later suddenly stopped. I toggled those options on/off in the Sharing section of Sys Prefs, and they started working fine again...but then stopped again. It seems no matter what I do, file and screen sharing just stop working after a short period of time after being enabled.
Ideas?

Turns out the problem was that I had a daisey-chained ethernet switch. My mac mini was on an ethernet switch that was not visible to my wireless network. Make sure that your ethernet switch is somehow directly connected to whatever is serving as your DHCP server, then your wireless devices should see it.

A refinement for iChat screen sharing

Leopard's iChat screen sharing is a great feature, and I'm teaching various of my relatives how to use it so I can help them more readily. However, there is one refinement that could be added to it that would increase its already great utility: the ability to rapidly switch from sharing one screen to sharing the other, in a two-participant session. To do this now, as far as I know, the session must be terminated and restarted, and this is inconvenient.
One way I can imagine this working is to have a third option: share both screens; the initiator is thereafter allowed to switch back and forth between the two screens, making the chosen one visible to both parties.
And while I'm posting, I'd like to say that the continuing interference by Comcast in iChat Video Chatting that I and many others have reported on over the past year or two seems not to arise in screen sharing. Let us count our blessings in that regard, and hope for a resolution of the overall problem.
Tom DeBoni
Oakland, CA

Hi,
Change the resolution on the Older OS.
It is the only workaround we have found at the moment.
9:05 PM Wednesday; October 17, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
 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

Fix for iChat Screen Sharing Problem I was Having

Okay, I just thought I'd chime in and try to help some people from going through the frustration that I recently went through with iChat in Leopard. Here's my story.
iChat screen sharing used to work for me and suddenly one day it stopped working correctly... lemme explain. I would let someone share my screen, and it would start working and they would wave their mouse around and 10 seconds later, it will freeze and lose connection with a timeout.
At first I thought it was a firewall issue but, after thinking about it.... I thought, how could it be if it was working for 10 seconds and suddenly stopped? If it was a firewall issue, it wouldn't work at all. Then I thought maybe my iChat app got corrupted, so I used Time Machine (yay!) to restore iChat from one of the first days I got Leopard. That didn't work. So then I figured my preferences got corrupt, so I deleted my com.apple.ichat.plist file and still didn't work. I was so mad that Apple made this feature basically useless for me until I had a crazy hunch.
After an hour if pulling out my hair, I finally had an idea of what might be causing the crash... I noticed I had my old iSight plugged in (the external firewire iSight) into my Apple Cinema Display. I unplugged it and iChat screen sharing worked PERFECTLY. You should also know that I don't have problems with my iSight, it works well on Video Chat and Audio Chat and even presentation mode but, it screwed up screen sharing.
In conclusion, if you're experiencing sudden connection losses with iChat screen sharing, check to see if you have an iSight plugged into your Mac and unplug it.
Also, you're welcome.

Thomson-Alcatel 780 modem.
Unfortunately this is going to needs a new modem (or Bridge this one and have a router)
Read this section http://www.ralphjohns.co.uk/page4a.html#_text
Although the SIP Binding to port 5060 in this device could be UnBound in Version 4 firmware it has not been fully Unbound in Version 5 or 6 (Despite the version 5/6 instructions further down that section).
The problem can make the iChat issue look intermittent with it working with some Buddies and not others.
Getting a new modem that does not have SIP binding is the only realistic way around the issue (Or setting the device to Bridge and having another router)
11:00 PM Friday; April 25, 2008

IChat Screen Sharing with Multiple Monitors

I love the new Screen Sharing feature included in iChat 4 as part of Leopard. It is an incredible diagnostic tool that will make it much easier for Mac users to help support each other.
The problem I've run into is that our "standard" config at work is a 15" MacBook Pro with a 23" external display. When doing Screen Sharing from this system, both displays are shrunk to about half their size so they can fit on the main screen of the remote computer. In many cases this works fine, but the images and text can be pretty small on the viewing computer.
Is there any way to control the scaling on the viewing computer? Is there any way on the computer that is being shared to say, only share this monitor?
Just trying to find a way to make the image easier to see on the remote computer.
Steve

Try to run all displays in the same resolution (the settings of the less advanced, smaller display, not the other way around). Additional displays require additional processing, close other applications. Unplug the 23" for now, try it when you've got everything else running. Restart connected computers after you've changed settings on any detectable display. Make sure the bandwidth is sufficient for screen sharing on both ends. (I would use Spaces on the remote computer to create speedy access to applications.) When this works, try to connect the external display.

IChat Screen Sharing - I can share my screen, but Dad can't share his

Hi all,
Last week I used iChat screen sharing to help my Dad with his iMac, and although it froze and dropped out frequently, it was working.
This week, for some reason we can only share my screen, but not his. On both sides, the option to share his screen is disabled (greyed out). Also the Video > Screen Sharing Enabled menu item is also disabled on his Mac, but mine is enabled and turned on.
Both of us have Screen Sharing turned on in System Preferences > Sharing, and both have set to allow access to anyone.
He restarted his Mac a couple of times, but no luck.
Has anyone had the same problem, and is there a solution? Any idea why it would work last week but not this week?
Thanks in advance for any help you can offer.
Will.

Hi,
You can come back and change the marking of the answered or not so that is not a problem.
What it should help is stop other people joining in (an effectively loading you with email alerts when they do).
A good specific title like your should also help.
9:00 PM Tuesday; November 27, 2007

Dreamweaver 6.1 - JavaScript error when switching between open tabs

When switching between open tabs a sequence of javascript
errors occurs. I had not used Dreamweaver for about 2 weeks, and
last time I used it with no problems.
I have tried uninstalling it, OKing removal of all files when
asked, re-installing it and updating with dwmx61_updater.exe, but I
still get the same errors.
This has rendered the software virtually unuseable, so any
help would be greatly appreciated, as I'm working to a
rapidly-approaching deadline.
"While executing Browse_Back enabled in toolbars.xml, a
JavaScript error occurred"
followed by
"While executing Browse_Forward enabled in toolbars.xml, a
JavaScript error occurred"
followed by
"While executing Browse_Stop enabled in toolbars.xml, a
JavaScript error occurred"
The relevant code seems to be :

<toolbar id="Browser_Toolbar" platform="win"
label="Browser Navigation" container="document"
initiallyVisible="false">
<button id="Browse_Back"
image="Toolbars/images/MM/back.gif"
disabledImage="Toolbars/images/MM/back_dis.gif"
tooltip="Back"
label="Back"
enabled="dw.getDocumentDOM().browser.isCmdEnabled('back')"
command="dw.getDocumentDOM().browser.backPage()"
update="onEveryIdle"/>
<button id="Browse_Forward"
image="Toolbars/images/MM/forward.gif"
disabledImage="Toolbars/images/MM/forward_dis.gif"
tooltip="Forward"
label="Forward"
enabled="dw.getDocumentDOM().browser.isCmdEnabled('forward')"
command="dw.getDocumentDOM().browser.forwardPage()"
update="onEveryIdle"/>
<button id="Browse_Stop"
image="Toolbars/images/MM/stop.gif"
disabledImage="Toolbars/images/MM/stop_dis.gif"
tooltip="Stop"
label="Stop"
enabled="dw.getDocumentDOM().browser.getPageBusy()"
command="dw.getDocumentDOM().browser.stopPage()"
update="onBrowserPageBusyChange"/>
<button id="Browse_Refresh"
image="Toolbars/images/MM/browserRefresh.gif"
tooltip="Refresh"
label="Refresh"
enabled="true"
command="dw.getDocumentDOM().browser.refreshPage()"/>
presumably the next error is caused by the previous ones
failing :
"While executing getCurrentValue in AddressURL.htm, a
JavaScript error occurred"
the relevan tcode :
function getCurrentValue()
var dom = dw.getDocumentDOM();
var value = dom.browser.getURL();
if (value && value.length)
//check if is it not a temp file
//extract the tail of the url
var filename = value;
var slashIndex = filename.lastIndexOf("/");
filename = filename.substring(slashIndex+1);
var tempIndex = filename.indexOf("TMP");
if (tempIndex != 0)
addRecentAddress(value);
return value;

You can try this simple fix -
Quit DW.
Find this folder -
C:\Documents and Settings\<username>\Application
Data\Macromedia\Dreamweaver
8\Configuration\WinFileCache-*.dat
(these folders are normally hidden - you may have to use
Explorer > Tools >
Folder Options to unhide them)
and delete it.
Restart DW. Works better?
Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.dreamweavermx-templates.com
- Template Triage!
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
http://www.macromedia.com/support/search/
- Macromedia (MM) Technotes
==================
"earthdoctor" <[email protected]> wrote in
message
news:[email protected]...
> When switching between open tabs a sequence of
javascript errors occurs. I
> had
> not used Dreamweaver for about 2 weeks, and last time I
used it with no
> problems.
>
> I have tried uninstalling it, OKing removal of all files
when asked,
> re-installing it and updating with dwmx61_updater.exe,
but I still get the
> same
> errors.
>
> This has rendered the software virtually unuseable, so
any help would be
> greatly appreciated, as I'm working to a
rapidly-approaching deadline.
>
>
> "While executing Browse_Back enabled in toolbars.xml, a
JavaScript error
> occurred"
> followed by
> "While executing Browse_Forward enabled in toolbars.xml,
a JavaScript
> error
> occurred"
> followed by
> "While executing Browse_Stop enabled in toolbars.xml, a
JavaScript error
> occurred"
>
> The relevant code seems to be :
>
> 
>
> <toolbar id="Browser_Toolbar" platform="win"
label="Browser
> Navigation"
> container="document" initiallyVisible="false">
>
> <button id="Browse_Back"
> image="Toolbars/images/MM/back.gif"
> disabledImage="Toolbars/images/MM/back_dis.gif"
> tooltip="Back"
> label="Back"
>
enabled="dw.getDocumentDOM().browser.isCmdEnabled('back')"
> command="dw.getDocumentDOM().browser.backPage()"
> update="onEveryIdle"/>
>
> <button id="Browse_Forward"
> image="Toolbars/images/MM/forward.gif"
> disabledImage="Toolbars/images/MM/forward_dis.gif"
> tooltip="Forward"
> label="Forward"
>
enabled="dw.getDocumentDOM().browser.isCmdEnabled('forward')"
> command="dw.getDocumentDOM().browser.forwardPage()"
> update="onEveryIdle"/>
>
> <button id="Browse_Stop"
> image="Toolbars/images/MM/stop.gif"
> disabledImage="Toolbars/images/MM/stop_dis.gif"
> tooltip="Stop"
> label="Stop"
> enabled="dw.getDocumentDOM().browser.getPageBusy()"
> command="dw.getDocumentDOM().browser.stopPage()"
> update="onBrowserPageBusyChange"/>
>
> <button id="Browse_Refresh"
> image="Toolbars/images/MM/browserRefresh.gif"
> tooltip="Refresh"
> label="Refresh"
> enabled="true"
> command="dw.getDocumentDOM().browser.refreshPage()"/>
>
>
>
> presumably the next error is caused by the previous ones
failing :
>
> "While executing getCurrentValue in AddressURL.htm, a
JavaScript error
> occurred"
> the relevan tcode :
>
>
> function getCurrentValue()
> {
> var dom = dw.getDocumentDOM();
> var value = dom.browser.getURL();
> if (value && value.length)
> {
> //check if is it not a temp file
> //extract the tail of the url
> var filename = value;
> var slashIndex = filename.lastIndexOf("/");
> filename = filename.substring(slashIndex+1);
> var tempIndex = filename.indexOf("TMP");
> if (tempIndex != 0)
> {
> addRecentAddress(value);
> }
> }
> return value;
> }
>
>

IChat screen sharing does not work on my Mac Pro

I have a weird iChat screen sharing problem that i can't seem to resolve on my Mac Pro. Ever since i got my Mac Pro in early 2008, using the screen sharing feature in iChat has always been flaky. I have never gotten to the point of getting it consistently working. Lately, i have not been able to get it to work at all.
Most of the time, when i choose to share my chat target's screen (or when i share my screen), i would be able to see my chat target's screen and use the mouse for several seconds before the shared screen session is ended. The errors that i am getting are:
+"Disconnected from Screen Sharing because:+
+No data has been received for the last 10 s..."+
+"There was a communication error during your chat.+
+No data has been received for the last 10 seconds. You can send+
+details about this problem to Apple to help improve future versions of+
iChat."
On other occasions (mostly when i am trying to troubleshoot this issue by testing in the same network with my Powerbook, which is on 10.5.6 as well), i get this error:
+"Disconnected from Screen Sharing because:+
+Screen sharing could not be established."+
I have tried to do screen sharing via iChat with other Macs in the same network and also on the internet but with the same problems.
Initially, i thought this may be router related. But the fact that iChat screen sharing on my Powerbook works perfectly both in intranet and internet eliminates my router as the culprit.
I have also tried disabling the OSX Firewall but the outcome was the same.
I read some posts that there may be issue with using the external iSight web cam. I unplugged it, cleaning up all the iChat-related caches and preferences and tried again but with the same result.
I have also tried connecting to iChat using several different account types (mobileme, .mac and AIM) but the end result is the same.
I run a Ubuntu VMWare fusion VM on my Mac Pro as my webserver. I thought that may be the problem. Shutting down the Ubuntu VM also does not help.
Applecare support personnel also instructed me to re-install iChat but that did not help as well.
One interesting error i noticed in the system.log (seen via the Console app) that is generated everytime iChat screen sharing fails on my Mac Pro:
+12/23/08 12:32:00 AM /Applications/iChat.app/Contents/MacOS/iChat[507] error getting server version+
I am really running out of ideas on what else i can do to get this resolved.
Thanks in advance for any suggestion.
Message was edited by: Changren Yong
The audio and video chat portions of iChat work fine.

I managed to make some headway in my attempts to troubleshoot this problem. I did a fresh Leopard install on one of the drives in my Mac Pro. I then proceeded to update it to 10.5.6. After that, i launched iChat and attempted screen sharing with my Powerbook. The first few attempts failed, with the following symptoms:
- i would be able to see and control the Powerbook's screen
- after 5 seconds, my screen sharing session is disconnected
I then unplugged my external iSight. After i relaunched iChat, i managed do screen sharing in iChat without being disconnected!!! When i connected the iSight back into the ACD, with iSight off, i attempted to screen share again. This time, it failed after about 5 seconds, just like earlier. I then turned iSight on. This time round, the screen sharing session was not disconnected!!
So in addition to the iSight issue, something in my original Leopard startup disk is causing iChat screen sharing to fail because even when screen sharing was failing on my fresh Leopard install, i do not see this error:
/Applications/iChat.app/Contents/MacOS/iChat(507) error getting server version
So if i can figure out what is causing this error to show up in system.log, then i can manage the iSight issue.

Does Ichat screen sharing work properly with Lion OSX?

Hello, I am planning to install the new OS Lion soon. However, I was wondering if the Ichat screen sharing works properly with Lion. I use the screen sharing quite a lot to communicate with my co-workers, so it's a deal breaker if the app crashes when using the screen sharing option. Thank you!

Hi,
I have not seen a post where it has been reported to be a problem.
9:12 PM Friday; August 12, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb( 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

IChat Screen Sharing: Audio works but video is a white screen.

I am having a problem using iChat screen sharing with a specific computer. We are both running OS 10.7.4. I have a Mac Book Pro (fall 2011) and he has a iMac one to two years old. We have tried contacting apple support but no luck yet. We tried setting up a test user to see if the problem was user specific but encountered the same problem. Again, video and text chat work fine. He can share my screen with no issues. Only when I ask to share his screen do I get a blank white screen. Audio works and I can manipulate his curser but all I have is a white screen. I have tried changing the resolution on his iMac but this has not helped. Also we are both using Google Talk as the chat server.

Hi,
Historically iChat Updates came in OS updates.
Not every OS update had an iChat update but that was the way they were delivered.
Only twice during the lifetime of iChat 3 have there ever been standalone Updates outside of this.
Most Updates are now through the App Store but Software Update can still be used (I have mine set on Daily despite Apple's Updates normally coming on Tuesdays)
One person stated he thought there had been a change with OS 10.8.1 saying the Build number of Messages had changed.
In my experience it has not and when Apple do update something the build Number and Version number change.
It is widely know that Apple send Developers and others advance copies of the OS to try out.
Those people sign NDAs (Non Disclosure Agreements) so you will not see any discussion of any up and coming stuff on this site.
8:55 PM Thursday; September 6, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Lion 10.7.2)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

IChat Screen Sharing mouse problems

I just bought a new iMac 20" for my mom for xmas with the thought that the iChat screen sharing will help me to remotely configure her system.
I am finding that once I have initiated the screen share I am have erratic mouse behavior. When I am sharing her screen and moving the mouse the cursor will jump around the screen. this happens even worse if I am click-dragging a window around.
Is there any way to improve this performance? At work I use Windows remote desktop with no issues such as this, and I would expect the same performance from OSX.
Thanks

My first thought is that your mother is also trying to control the mouse.
I presume though you have exclude this.
iChat Screen Sharing does include an Audio component so the computer is doing an Audio chat at the same time effectively. This will have a impact on the processor usage particularly over the way iChat A/V chats use the processor. (they tend to dip in and out to spread the load and not hog the processor).
10:11 PM Friday; January 9, 2009

IChat Screen Sharing Stops when Switching Between Displays

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