Closed Lid Screen Sharing Methods?

Hey Everyone,
I have a late 2009 21 inch Imac, and a mid 2012 13 inch macbook pro (non-retina).
Since my imac does not support target display mode from my thunderbolt-using 2012 macbook, are there any other methods I could use to use my imac as a monitor for my macbook ???
I know all about mac's built in screen sharing capability, and I have used that extensively. My wish, however, is to be able to close the macbook pro lid, have it sitting in a dock beside my imac, and use the imac as my macbook pro's monitor.
I have ordered a firewire 800 and ethernet crossover cable, hoping to find a solution. I already have a standard ethernet cable.
I typically use screen sharing over my wireless network, and at times the performance isn't so great. I'm hoping that screen sharing will work better over a wired connection.
That being said, can I screen share via ethernet/firewire AND close the lid of the macbook?
Any solutions/work-arounds to the lack of target display mode in my 2009 21 inch imac are greatly appreciated. Thanks!!!

I think you might have misread the original post
With the lid closed:
Screen sharing DOES work but for TWO MINUTES then the "Reconnecting..." message appears and the system becomes uncontactable from the other machine completely - although it is still listed under the Shared section of finder.
The system wake to respond to the network event is deemed a Maintanence wake according to the console log.
According to the console log, after about 1m40s, the system decides that the Maint window is over and starts closing down applications and the connection ends.
It would be nice to force the system into a user state so that you could screen share or access shares until you log off and have the system revert to "power nap" mode, much like the wifi wake for access on Snow Leopard. This was the behaviour I expected. Since the system can only Power Nap while on AC power, it seems like this would make sense.

Similar Messages

Recursive screen sharing

Have you seen what happens when you:
a. On Mac A, open up screen of Mac B.
b. Then on Mac B, open up screen of Mac A.
You get an infinite number of screens within screens stretching out all the way down to a distant point.
Both Macs are then jammed in an infinite loop. Kind of silly really, there should be a protection against this.
Forcing one of the Macs to sleep with power button allows you quit screen sharing on the other to get out of this deadly embrace.

I made a little screencast displaying this behavior. As I ran it, my Macbook started to spin up its fans, as if to say "She's flyin' apart Captain!" But I never had ny problem closing the screen sharing, nor locking up.
http://www.screencast.com/t/v72hrz1XTk
Message was edited by: irowboat

Screen sharing with lid closed

Hi,
I'm experiencing weird behaviour when I try to share the screen of my MBPwRD with its lid clsoed. The MBPwRD shows up in the Finder sidebar as a device that I can connect to, and I can initiate screen sharing from another Mac on my network. However, after a couple of seconds the screen share window goes black. It then seems to try to reconnect but fails. If I close the screen sharing window and return to the Finder, the MBPwRD no longer shows in the sidebar.
Anyone else experiencing this?
LM

You can, but you need additional hardware to do so:
http://www.matrox.com/graphics/en/gxm/products/mac/home.php
Hope this helps...

Dragon Naturally Speaking with the lid/screen closed

I want to use Dragon Naturally Speaking with the lid/screen closed. Please tell me what settings. Thanks in advance.

Hi,
I did few tests which my laptops, they sit on docking stations with their lid closed and the sounds were so weak because due to the location of the internal microphones. You need to use an EXTERNAL microphone, you can set you laptop to stay ON after closing the lid:
http://windows.microsoft.com/en-au/windows7/change-what-happens-when-you-close-your-laptop
Regards.
BH
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Closed connection in stalled screen sharing and now does not work

Using screen sharing I created a second admin account on the computer 2. I enabled quick account switching and tried to switch user accounts to the new admin account. I linked the new admin account to be shared with my existing admin account on computer 1. The screen never switched over to my new admin account and I couldn't quit screen sharing so I closed the connection with computer 2. Now I can't share the screen with computer 2 at all, even using my original admin account (not the newly created one). I can't reboot my computers because it will abort jobs that need to remain running.
I can still share screens between computer 1 and other computers (i.e. not computer 2) but when I try to share with computer 2, it doesn't even ask me to log in.

This issue remains unresolved, but since Apple Discussions decided to archive my question it is impossible to receive any replies.
GRR.

Hp beats 15-p058n - cracked screen when closing lid?

I brought this notebook at christmas just gone for my wife, ( 3months) She has been very careful with it no knocks no bangs. i purchased it from a well known outlet and it had marks over it but purchased as new from a well known retailer we did complain askng if it was a used notebook as didn't look new. but in the end left it... anyway to cut a very long story short my wife does use this laptop very often as she is disabled so it remains in one place at home. anyway i was using it the other evening and closed the lid down i heard cracking when i closed it down, so lifted it back up and notices a crack going along the monitor/screen. Of course this has upset my wife because it's her outlet to some normality in her life.. i could understand if it's been dropped of hit somehow, but only by closing the screen down after turn off it cracked. Now the funny thing is im using it to type this on here, no dead pixals no blotches anywhere the screen under neath the glass is perfect... if it was dropped or hit it would be, so clearly it hasn't been. I have since read of other posts where this has happened. the cracks in the screen are geting worse as and when i close it down another crack appears you can hear it. i'm not covered under warranty am i?... i'm not covered on my home insurance under accidental damage because i haven' done any damage expect close the screen?..... where do i stand? every repair shop i've called have no parts to help and i dont really want HP to repair it at a huge cost when it shouldn't of happened in the first place and it may happen again?
Any help would be much appreciated if someone can point me in the right direction?

@FRANKIE3012 ,
Hello and thank you for posting on the HP support forums. Unless you purchased Accidental Protection for your notebook screen damage is not covered normally. You would have to contact HP phone support for repair options.
Please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
Thank you again for posting and have a great day.
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
D5GR
I work on behalf of HP

MacBook Pro won't turn on after closing lid & fully charged. Help!

I have a MacBook Pro from June 2008, I have been using it all day, this evening it was fully charged and I left it on with the screen open - by the time I came back the screen was black ( I assumed it had gone to sleep) I closed the lid to take it upstairs to discover that when I opened it the power light was not on. When I press the power button nothing happens, but if I hold the power button for around 5 seconds the light stays on, the laptop sounds like it is trying to start up but then dies. I have tried the smc reset, but it has not worked. Also tried taking the battery out and trying this with just power adapter. Does anyone have any clues to what is wrong? Or do I just take it into the apple store?
Thanks, really could do with some help!!

Hey Pascale,
I am not sure if you have fixed this but I had the same problem and found some advice from another website...
http://www.adeepbite.com/lion-seems-having-insomnia-it-doesnt-sleep-easily/
All I had to do was turn off my "internet sharing" (System preferences -> Sharing -> Internet Sharing (uncheck) )
and presto, no more closing lid problems.
If your internet sharing wasn't the issue then I don' t know what is.
Cheers

Screen sharing not on same network

I set up my grandmother's new computer at my house, and since we were on the same network, I was able to use Screen Sharing to access her computer.
But now that she's back in Chicago, and not on my network, Screen Sharing doesn't seem to allow me to access her computer. She's got some issues I could easily resolve if I could screen share. How can I do this now?

HI,
iChat or Messages will let you do this is both ends have Screens Names (AIM based) or Jabber IDs.
In Messages or iChat go to the App menu > Preferences > Accounst and use the plus button at the bottom of ther list to add an Account.
In the add Account Pane chose either AIM (Includes some Apple IDs) or Jabber (Includes a Google options in the list).
Google Mail IDs work in the Google choice if you enable "Talk" in the Products at your Google account page (not the web mail login)
Facebook IDs can also be Jabber IDs if you enable "Chat" at their settings.
Use the Preferences > General section to Unlink the gathered Buddy lists (By default they are in one list in Messages).
The window Menu should now display a list of Buddy List accounts that can be displayed.
(Bonjour if Enabled, Jabber, Google and/or AIM). There is a Yahoo account but this will not Video or Audio Only chats which in turn means no Screen Sharing.
Once you have the Buddy list on Show you can add the Buddy name
(Press the + icon and choose Add Buddy (Or use the Buddies menu > Add Buddy) )
Having the list separate means you can add the right name to the right Buddy List.
Check you can Video chat (Screen Sharing needs the same Internet Connection minimum speed.)
You need to activate Screen Sharing in the Video menu.
This version is really an Audio Chat with a VNC connection along side
For this UPnP needs to be the method employed in the router to open ports as the VNC connection is on a random port.
The System base Screen Sharing is also a VNC connection.
It follows more closely to the Apple Remote Desktop (ARD) ports as it too, like iChat/Messages uses the ARD engine.
However instead on a Finder > Go Menu > Go to Server and typing VNC:// and a local IP or Browsing for a local computer you need the Public IP address of your mother's Modem.
The modem or router at her end would then need to point that connection to the computer (Port Forwarding).
The same would need to be done in your router for the return stuff.
(most routers have the first 1024 ports (or 65535) open but in this case the Screen Sharing app uses ports above this as does iChat/Messages).
iChat just handles it better once UPnP is enabled.
10:33 pm Sunday; July 28, 2013
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.4)
 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

Can connect with Server Admin and Server Prefs, not Screen Sharing or ARD

Just set up 10.5 server on my G5, and trying to connect from 10.5 on my iMac. I have tried both with the server System Preferences set to allow Screen Sharing via VNC, and with Remote Management enabled for ARD. In both cases, I get authentication errors when trying to connect from home. I have tried with both the full username, and with the short name of the only account on the server. My assumption is that, since this is the administrator account, I don't need to setup explicit privs for it on the server.
I can authenticate without any trouble with both Server Admin and Server Preferences.
The Firewall is not enabled on either machine, although I am behind a NAT router at home -- is it necessary to open any special ports to enable screen sharing? Is it possible that having these ports closed would produce an authentication error?
Thanks for any help.

Hi
I'm going to assume you configured your Server in Standard Configuration and not Workgroup or Advanced?
When using Standard in setting up the server DNS is automatically configured for as well as the Server taking an Open Directory Master Role. The admin account created at the beginning is for administering the Open Directory. Unknown to you and not documented at all - as far as I can see - is the 'Local Administrator' (localadmin) account.
You only become aware of this account if for some reason you have a problem with the Server which involves demoting to Standalone (ie not an Open Directory Master) once this happens you find you can't log on to the Server anymore or communicate with any of the Server applications because it won't accept any username or password other than root and localadmin for the name and the password defined for the original admin account you created right at the beginning.
Sometimes it does not even take demotion to find yourself locked out of the Server. Some have experienced this problem when running the Security Update or when some other problem has occured.
Part of the process of creating an Open Directory Master involves the creation of a 'special' directory administrator account. This account is used for administering the LDAP node. If demotion takes place this account gets blown away along with all users and group accounts that exist in the LDAP node, in fact everything to do with Open Directory is destroyed apart from Users' home folders.
Why demote if this happens? Sometimes the LDAP database gets damaged/corrupted beyond a point where normal troubleshooting methods fail. This can happen for a whole variety of reasons but more often than not is due to a poorly configured DNS Service. You basically only have two options once you reach that stage. A server reinstall involving a format and rebuild or a demotion to Standalone. Which option would you choose? Prior to demotion you can (if you have the chance) export users and groups or even archive the LDAP database itself for restoration later on. This is a useful option as everything to do with the LDAP Server is retained - passwords, users, groups etc. The other method of saving users etc does not retain passwords.
As time goes on and you become more familiar with your server you will find more and more of this information out for yourself. Hopefully the simple advice I've given helps you understand Open Directory a little better.
Hope this helps, Tony

DVI to VGA Adapter Closed Lid Mode Distorted Picture on TV

Hi
I managed to hook up the DVI to VGA adapter and view on my Sanyo TV. Nothing fancy just a older TV.
I am feeding through the Yellow Video output into the video input on the TV. (Also tried s-video)
Viewing with the macbook lid open no problems. Remembered that I could close the lid.
Followed the instructions online about connecting, closing the lid and waking up using my bluetooth mouse.
First time things went well - able to use Front Row and View Slideshows etc. also steaming video from Safari, (TV Land for my kid)
Then the screen began to flash - and change to black with rolling images.
Like you used to have in the 60-70's black and white TV - multiple images rolling past over and over.
I tried rebooting - starting new connections, using different cables, using both VGA and S-Video directly into the TV and not through my reciever.
Any ideas!
I can't use closed lid mode at all. I must instead, dim my screen.
Help?
Thanks
Buddy

Thanks, BSteely, I have the latest QT and iTunes already. Closing the lid seems to kick the MacBook external display into some special mode that Front Row can't display videos in. For example, you get the Front Row interface, but as you select movies/TV shows, the preview window on the left side is blank. Open the cover, and have both displays going, and you can see the previews fine (and of course, you can see the movies/TV shows play fine as well when you click on them)
Running Quicktime Player full screen works fine without Front Row in either open or closed lid mode. So it is apparently something wrong with Front Row itself.

Screen Sharing and MobileMe

Hi There,
I have a problem, I have a MobileMe account, as does my brother who is currently at university in the US, Im working out of an Apple Mac Pro that is going into a BeBox Speedtouch. Typically, when i'm at work i can connect via 'Back to My Mac' and see my screen's fine.
However, i'm have a nightmare trying to screen share anyone else, video and audio chat works fine, i've tried the two methods with the quicktime streaming and setting unlimited to ichat video streaming. The Connection doctor says i can share my screen and control others, and no error logs pop up when it fails.
Is this a port forwarding thing? could this possibly be a block on behalf of my brothers university connection? some help would be excellent, and some details on exactly how to port-forward would be nice too.
Again any solution would fantastic, i have a mildly mac illiterate brother over there who needs your help!

Hi Luke,
Welcome to the  Discussions
The Speedtouch modem is the issue.
When you do a Screen Share in iChat it also has a Audio Chat with it.
Both Video and Audio Only chats require that the modem handles SIP (Session Initiation Protocol) correctly to connect the two ends in a successful chat.
Speedtouch Devices made by Thomson-Alcatel do what is called "Binding" of SIP to port 5060
BeBox do not appear in this list as a potential for them doing their own firmware for the modem.
This is fine for VoIP Apps and phone (Voice over Internet).
However many ISPs now block port 5060 used for SIP to make you pay more for VoIP services (they lost out on Long Distance telephone charges when VoIP took Off)
This has meant that people need to move SIP to Different ports (Apple moved iChat to port 16402 as first choice in iChat 4
(there was an international standard for 4 ports (5060-5063) originally but the Binding messes up using the other three as well even if they are not Blocked by the ISP)
Up until Version 5 Firmware on Thomson-Alcatels you could Fully Unbind the Default setting. (Last working firmware was 4.2.7)
Since then the Binding can only partly be done and we are now up to something like Version 7 of the Fimware
See here This starts with Unbinding for Version 4 and tells you how version 5 and 6 could be partially done (Same instructions, different format)
Doing the partial unbinding may give you about 5 more successful Buddies in Version 5 and 6 firmware which may include the person you want. But out of a average of 50 Buddies having only 15 you can Video Or Audio Chat to is not acceptable.
The only exception I know to this is the BT Home Hub. BT (Formerly British Telecom) now write the firmware for their branded box themselves.
As a separate issue the Modem should be using UPnP to open the ports to allow the Screen Sharing to work as the actual port used is random (the alongside Audio Chat still needs SIP allowed and port 16402)
I see from this Download page that BeBox only offer Thomson-Alcatels and none of those on Show are back at version 4 firmware.
You would have to see if they will allow you to have your own purchased modem.
8:56 PM Wednesday; August 12, 2009
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

Screen Sharing and Authentication

During deployment, I used this command to bind my clients to the directory server:
yes | dsconfigldap [-fvxsgemSN] -a myservername -n “myservername” -c $computerid -u diradmin -p mydiradminpass -l localadmin -q localadmin's pass
after doing this, I can no longer use screen sharing to access the bound clients. Unable to authenticate.
Is this becuase of the
-s
enforce not using cleartext authentication via policy
flag?
Is there still a way for me to screen share into my clients w/o having to use logmein?
Will ARD do it?

From the menu bar on the Screen Sharing server, select
 ▹ System Preferences... ▹ Users & Groups ▹ Login Options
and check the box marked
Allow network users to log in at the login window
If there's a closed padlock icon in the lower left corner of the preference pane, you may need to click it to unlock the settings. Enter your login password when prompted.
Note that this option is only available when the server is bound to a network directory server.
See also:
Screen Sharing with Open Directory Authentication

Screen Sharing and Open Directory (10.8)

I'm trying to allow Open Directory users to login over Screen Sharing to my Mountain Lion servers. I have tried the solution on the page linked below and it isn't working. Maybe I'm missing something:
https://discussions.apple.com/thread/2329389?start=0&tstart=0

From the menu bar on the Screen Sharing server, select
 ▹ System Preferences... ▹ Users & Groups ▹ Login Options
and check the box marked
Allow network users to log in at the login window
If there's a closed padlock icon in the lower left corner of the preference pane, you may need to click it to unlock the settings. Enter your login password when prompted.
Note that this option is only available when the server is bound to a network directory server.

Screen sharing and ARD windows to other computers are invisible!

Hi
I have been using screen sharing and or ARD with no problem, for some odd reason today when i went to control a iMac in my network, the window opens but is not there, like i hit command W and i noticed it closed windows on the iMac i can not see the screen at all.
Please advise

ahhh, thanks you did it!
forgot to restart after system update!
cheers

Remote desktop and screen sharing with RMI

Iam developing an application for screen sharing and remote desktop
the problem is a performance problem
in the screen sharing application server screen is captured and the image is sent to all connected clients through rmi connection
I used JPEGImageEncoder to compress the image and convert it to array of bytes
then zipped the resulted array using deflater.
the result is sent through rmi connection
the performance is so poor
i tried JMF but the performance is worse
i am thinking of a way to send the server screen only if it is changed but i don't know how
anyone could help me to enhance it with acceptable quality for the image
thanks

As you said, you need to only send the changes over the line.
Java can not tell you what has changed, so you need to either write some JNI, or do a check on the current image, with the last image. (this would eat quite a bit of CPU time on the server).
It might be worth looking at the source for VNC, and other simler products.
The simpliest solution would be to split the image into blocks of x by y pixels, then do a pixel-by-pixel check on that block, and only send the block if it has changed.
Next thing to think about is scrapping RMI, and using raw sockets. RMI has a fair sized overhead.
Zipping a JPEG is unlikely to have any effect. A JPEG is already compressed.
You might want to look at a lossless compression format, like PNG, as the JPEG will have articles. This might be acceptable. If so, changing the compression ratio of the JPEG might be an option.
Finally, the bottle neck might be the call to Robot.createScreenCapture. This is not the fastest method.

Closed Lid Screen Sharing Methods?

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