10.7.2 Breaks Screen Sharing Login

After updating to Lion 10.7.2 I receive a blank grey screen with no user login infomation when I access my MacBook Pro using TightVNC. 10.7.1 and prior releases worked correctly with user pictures painted onto the grey screen to allow login account selection.
I have stopped and started Screen Sharing multiple times with the same results.
Any suggestions?

Tight VNC Viewer runs on Windows 7 and is used to connect to PCs running VNC such as Mac OS X with Screen Sharing enabled. Tight VNC has never been installed on the Mac OS X box.
The only difference between when this worked and when it stopped working is the 10.7.2 update which seems to have broken VNC.

Similar Messages

Screen sharing and login

I've got a mini running Leopard and a MBP running Snow Leopard. I'm trying to use screen sharing in finder to connect to the mini from the MBP. There seems to be something preventing screen sharing whenever a user is logged in to the mini, even if the login occurs in screen sharing.
Here are some examples of the behavior:
If I'm logged in as "macuser1" on the mini, I can connect to the mini as "macuser1" or "macuser2" and see folders, etc in Finder, but, when I click the share screen button, I get a connection failed message.
If I go to the mini and logout, then go to the MBP and connect to the mini as "macuser1" I can see folders just fine. When I click share screen it connects just fine and I see the login screen on the mini. If I enter a username and password it logs in just fine (I can see it logged in on the mini), but screen sharing from the MBP says "reconnecting" and can't connect anymore.
Something about being logged in on the mini prevents me from sharing its screen.
I tried creating a new user account without success. I could log into the new account, but as I was logging it, I got the "reconnecting" screen on the MBP (but could see that the login worked on the mini).
I've got all the right users in the screen sharing part of sharing settings.
Any ideas?

have you tried the obvious - restarting the computers involved and the router?

Screen Sharing and Remote Login suddenly stopped working

I have had Screen Sharing and Remote Login turned on on my iMac for several weeks and they have been working fine up until now. I have been accessing the computer via VNC programs and command-line ssh logins from other computers on the same local network. When I tried to connect today, i was given the following error message.
ssh: connect to host xxx.xxx.xxx.xxx port 22: No route to host
I have all of the required settings turned on in System preferences and there are no firewalls or router settings blocking it. I connected the two computers together via ethernet cable and the error message still occurred.
I can ssh from the machine to 127.0.0.1, so the ssh server is running. I can ssh to other locations from the laptop i am attempting to connect with, so that's not the problem either. I just spent an hour on the phone with the apple tech support line and they couldn't figure anything out either. Can anybody figure something out?

have you tried the obvious - restarting the computers involved and the router?

Is there a way to access remote login and screen sharing logs?

I have a very high suspicion that my macbook air has been accessed through remote login. Here's what happened. I closed my macbook air, letting it sleep, and left my house. After coming back I found it logged into the Guest account (which I didn't know was enabled). Remote login, Remote sharing and file sharing were enabled but I disabled them. I can't remember enabling them but maybe I did.
I am also on a local network with about 8 other devices connected. I looked through /private/var/log/system.log but couldn't find anything concrete. I have yet to log out of the guest account and have connected to another internet connection just to be on the safe side.
My other user account is passworded and I could switch back to it from guest.
So if my macbook was accessed through remote login, is there a way to tell from what IP address it came from?
Please help me get to the bottom of this.

May 20 13:03:44 XXXXXXXX-MacBook-Air.local loginwindow[51]: ERROR | ScreensharingLoginNotification | Failed sending message to screen sharing GetScreensharingPort, err: 1102
May 20 13:03:44 XXXXXXXXMacBook-Air.local loginwindow[51]: USER_PROCESS: 51 console
May 20 19:11:14 XXXXXXXXXXX-MacBook-Air.local loginwindow[51]: ERROR | ScreensharingLoginNotification | Failed sending message to screen sharing GetScreensharingPort, err: 1102
I guess if it did happen it would have said so. Thanks anyway.

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.
Using iCloud Back to My Mac because all machines have the same Apple ID & password. Exact same setup worked before the 10.7.3 upgrade, but it could be coincidence.
Details:
Can see the remote computers in my finder,
Can click on them and connect successfully using either the Apple ID or the name and password a user that is allowed under Sharing -> Screen Sharing,
When clicking on "Screen Share," the computers connect and I'm prompted to either "Ask to Share the Display" or "Connect to Virtual Display"Since there really isn't anyone using the computer, I select "Connect to Virtual Display"
After clicking "Connect to Virtual Display" the Screen Sharing window shows the remote computer's login screen, whcih shows the user names, their icons and "Sleep" "Restart" or "Shut Down" on the bottom of the screen. One user has an orange circle with a white checkmark next to it.
Previously, I could click a user's name or icon, enter the password and control the remote Mac. Now, not amount of clicking works.
Have tried disconnecting and reconnecting as different users or using Apple ID without changes in the perofmance. Have restarted both machines.
Any help?

I'm having the same problem screen sharing to a Lion 10.7.3 machine, I get this message.
However, it works just like it used to when I screen share from a 10.7.3 machine to another Mac running 10.6.8.
Any thoughts?
Thanks!

After Clean Install of Yosemite, Screen Sharing & Remote Login are turned on in Sharing preferences

Do you guys know if this is a bug?
I created a custom USB Yosemite installer using the 'createinstallmedia' binary inside the Yosemite installer.
Booted iMac with this USB installer and proceeded to install Yosemite (fresh formatted drive). No problems.
When I log in however, and check the Sharing PreferencePane, both Screen Sharing and Remote Login are turned on.
I've tried this multiple times (repartitioning the drive each time and I have created the installer media twice).
I'm posting this I guess more as a report as the solution is simple enough (uncheck these services).
But it's definitely a security risk.

Just 2 minutes before I received your reply I solved the problem. I have been running a software firewall (DoorStop X) on the Mac Pro. It turns out that I had not allowed traffic over two ports necessary for Home Sharing– port 3689 and udp port 5353. When I corrected this everything is back to normal.
I did the clean install because I've been having intermittent problems with several apps including Compressor, Safari, and to a lesser extent FCP. I've been contemplating doing this for several months because of all the garbage that has collected on my system over several years since I last started from scratch. I have a bad habit of installing things that add kext files and otherwise modify the OS. I decided to get rid of all that stuff. I'm glad I did. All the problems I was having seem to have resolved. Safari runs 3x faster than it ever has. And I no longer have the headaches that Compressor was giving me. I think I'll take better care of my system from now on.
John

How can I login remotely (not screen sharing)

Hi
Is there a way I can login to my desktop (running 10.8.2) and work remotely - without screen sharing?
I am talking about full desktop access, logged in remotely, without disturbing the session of another user who is logged in, and physically in front of the computer.
I have spent a long time googling and cannot figure out if such a solution exists, either within the base OS, Apple Remote Desktop, or commercial solutions.
In an ideal world such a solution would also be cross-platform so that the remote client could be either Mac or Windows.
Thanks for any guidance.

I answered my own question.
By setting up another account it is possible to remote login with a VNC client. When connecting to the mac the login screen is presented. Provided that you login to an account that is not the front account running on the mac, that session is not disturbed.
Thus it is possible to run with full access to apps and data, on another account and session separate from the session that is already logged on.
However, if during that VNC session you switch users and login to the front account, you now will be the only session and will be controlling that screen. After that point you have to disconnect the VNC client, and re-log back in in order to leave the front account undistrubed.

Disable multiuser login screen sharing

hi there,
with the new lion there is multiuser login when trying to login via screen sharing through vnc.
is there a way to disable multiuser login? basically i am asking if there is a way to make it work as it was with the leopard.
thanks.

You can't disable it so much as circumvent it:
https://discussions.apple.com/message/16026896#16026896

Screen sharing is not working at login screen

Hi:
I need a little help. I have a headless Mac (System A) that I just upgraded to Mountain Lion (not Mountain Lion Server) from Snow Leopard Server.
From another Mac (System B) running Mountain Lion I was previously able to use Screen Sharing to remotely acess System A's login screen. Now, after upgrading from SL Server to ML I can only use Screen Sharing to remotely control System A from System B AFTER I have already logged into System A using a direct attached keyboard and screen. In other words, I lost the ability to access the login screen on Sys A.
Anyone have any ideas here???

I was having the same issue. In my case, I had copied /System/Library/CoreServices/Screen Sharing.app to the /Applications folder, some time ago. I did this so I could more easily launch Screen Sharing via Spotlight. Because of this, when I launched Screen Sharing, I was executing the 'old' Screen Sharing app. I re-copied the 'new' app to /Applications, and all is well! Hope this helps!

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.
Is anybody else have similar issues?

I am having this problem as well. On a late 2009 MPB. I can login to the guest account with no problem and I can also create a new user, but I cant access any of my filevaulted files. This happened after Silverlight caused Safari and everything else to freeze and I had to hard reboot, It's almost like lion is trying to reopen those apps when logging back in and it can't. I reinstalled Lion and repaired disks and disk permissions from the recovery hd. Anyone else??

Screen sharing does not let me login from Windows

Hi!
I have a Mac mini running the latest Version OS X Mavericks (10.9.3). I enabled "Screen sharing" in the settings, enabled access for all users and set a password for letting VNC-Viewers control the screen. The Firewall is disabled completely.
When I try to login from my Windows machine with a VNC client (I tried RealVNC), I am prompted for the screen-control password. I enter it and now see the OS X login screen. So far, so good! I select my user and type in the user's password and try to login. Without success. It acts as if my password was wrong.
I already tried different Windows PCs as clients, triple-double-quadrupel checked my passwords, have a colleague try it. Changed the passwords to real simple ones (using the same for screen controlling as the one for my OS X user, and then different ones, too). I tried rebooting the Mac, enabling the firewall, disabling it again. Whatever I do, I have the same problem: I see the login screen but I cannot login with my OS X user's password.
Any hints? Any ideas on what could help me?
Thank you!
Ebbel

I don't believe home sharing does that. I am pretty sure the Shared Library option does though (Edit -> Preferences -> Sharing tab)
I haven't done that in awhile so I cannot say for certain if the Shared Library method still lets you do what your asking but I am pretty sure it can. Try enabling it on the computer you want to transfer from and give it a go and please let us know how it works out for you

Lion screen sharing breaks mouse for local user.

I think I've discovered a bug. I have a new iMac 27" on 10.7.2 and a MBP on 10.7.2. The iMac has two accounts created, mine is the administrator, my girlfriends account is standard user. She likes to use the iMac with the bigger screen so I retreat to the MBP and use screen sharing to continue working on my documents that are under may account.
The problem is that the mouse will stop working for my girlfrends account when I have Screen Sharing running. Her mouse becomes unresponsive and just jumps around the screen once in a while. As soon as I close Screen Sharing her mouse returns to normal behavior.
Has anyone heard of this?
I tried creating another standard account as a test, same problem.
Thanks,
Ron

10 days with no ideas = apple's new screen sharing in lion is broken.

I cannot connect to the server – screen sharing, Server Preferences,...

hello
I have a problem with xserver. Everything seems to be working ok, however, one day system started to break down.
I cannot connect to the server through *screen sharing* neither through internet, nor through local net. Even after restart login wont shows up.
I cannot also connet to the *Server Preferences* (Unable to authenticate to the Open Directory master.)
Sometimes I cannot also connect to the *Server Admin* (but after restart it works, however, Server Preferences are unavailable).
SSH works ok.
Nor repair permission, neither verify disk, or update for OS X server 10.6.4 worked.
system log periodicaly enters this message:
Jul 14 23:24:35 xserve WindowServer[5091]: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
Jul 14 23:24:35 xserve com.apple.WindowServer[5091]: Wed Jul 14 23:24:35 xserve.sk WindowServer[5091] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
Jul 14 23:24:36 xserve com.apple.launchd[1] (com.apple.RemoteDesktop.agent[5096]): posix_spawn("/System/Library/CoreServices/RemoteManagement/ARDAgent.app/Content s/MacOS/ARDAgent", ...): No such file or directory
Jul 14 23:24:36 xserve com.apple.launchd[1] (com.apple.RemoteDesktop.agent[5096]): Exited with exit code: 1
Jul 14 23:24:36 xserve com.apple.launchd[1] (com.apple.RemoteDesktop.agent): Throttling respawn: Will start in 10 seconds
Jul 14 23:24:36 xserve loginwindow[5085]: Login Window Started Security Agent
Jul 14 23:24:36 xserve loginwindow[5085]: Login Window - Returned from Security Agent
Jul 14 23:24:36 xserve loginwindow[5085]: AuthorizationRef returned errAuthorizationDenied. Exiting.
Jul 14 23:24:36 xserve com.apple.loginwindow[5085]: AuthorizationRef returned errAuthorizationDenied. Exiting.
Jul 14 23:24:36 xserve com.apple.launchd[1] (com.apple.loginwindow): Throttling respawn: Will start in 3 seconds
Jul 14 23:24:36 xserve com.apple.ReportCrash.Root[4982]: 2010-07-14 23:24:36.505 ReportCrash[4982:350b] Saved crash report for ManagedClient[5099] version ??? (???) to /Library/Logs/DiagnosticReports/ManagedClient2010-07-14-232436localhost.crash
can you advice me?
thanks

Hi Shannon McLain,
Kindly let us know if there is any specific error message that you are getting while installing it.
Here is what you can try:
Creative Cloud Help | Download, install, update, or uninstall apps
https://helpx.adobe.com/creative-suite/kb/cs5-cleaner-tool-installation-problems.html
https://helpx.adobe.com/creative-cloud/kb/error-downloading-cc-apps.html
Kindly share the results once done.
Thanks,
Atul Saini

How secure is screen sharing?

Hi: I have set up my MacPro 2008 to accept screen sharing for one user (me) and I access it from my MacBook Pro via airport/AP extreme (protected by WPA2 Personal) and built-in VNC. Everything works perfectly fine and just as smooth as can be expected from a Mac. My only concern is, whether the connection is safe enough such that my passwords cannot easily be intercepted, or if I need to set up an SSH connection. Any suggestions?
Thanks.

WPA2 offers its own encryption, so it's basically secure against anyone not on your LAN so long as they don't have (or break) you WPA2 encryption key.
That said, you might presume that someone has breached the WPA2 encryption or otherwise gained access to your LAN, in which case the VNC login (and frame buffer data) isn't secure. In that case, what you want is to setup SSH and use the Mac firewall tools to block access to VNC from any host other than localhost.

Screen sharing and multiple users

I have an iMac at home that is used by multiple family members. I have multiple logins enable so it is common to have 2-3 accounts logged in at once. I would like to use screen sharing to connect to my account even when one of the kids is logged into their account.
I started by looking at the vnc processes. There is one process that run as root:
root 21792 0.0 0.0 2437128 1736 ?? Ss 12:25PM 0:00.02 /System/Library/CoreServices/RemoteManagement/AppleVNCServer.bundle/Contents/Su pport/RFBRegisterMDNS
Then there is another process for each person logged in:
username 22006 0.0 0.3 2734876 13964 ?? S 12:33PM 0:00.29 /System/Library/CoreServices/RemoteManagement/AppleVNCServer.bundle/Contents/Ma cOS/AppleVNCServer
So I have two questions. One is how can there be three processes running that listen on the same 5900 port at the same time and how does it decide which one to connect a vnc client to? My second question is how can I prevent the AppleVNCServer process from starting for each user. I've tried killing those processes but they respawn immediately.

Hi
Thank you for your answer. Sorry to have been unclear - I'll give it another go :o)
Here is what I am trying to do:
I have 2 users (Plex and Ursus) that I want to have logged on at the same time. Plex will be "in the front" i.e. that is the screen that is seen if you are at the mini. Ursus is a user that is logged on but you cannot currently see (i.e. in the back as it where). I would like to work using the user Ursus (to, for example, rip a movie from a DVD (that I own of course :o).
Using file sharing would mean that I have 2 machines running and that I need to copy all the files from the one machine to the other, not exactly what I want but manageable.
I have managed to get this "partly" working - I am using Vine Server for Mac (http://www.testplant.com/products/vineserver/OSX) which allows me to start a VNC server on e.g. port 5901 and then screen share to that session. If I setup the second user (Ursus in this case) to use this server then I can connect to the "back" user. The only problem being that Vine Server seems to crash with Plex - as soon as I start it Plex just hangs and randomly crashes!
Was that clearer?
Thanks again
Ursus

10.7.2 Breaks Screen Sharing Login

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