Forum Discussion

kbar's avatar
kbar
Active Contributor
4 years ago

Blank screen when controlling a Mac system

When I use LogmeIn central to remote into a Mac running OS Version 12.0.1 from a PC I'm getting either a blank (black) screen or just the menu bar and the desktop background. This happens on the seco...
  • GaborO's avatar
    GaborO
    3 years ago

    A new version (4.1.0.12203) has been released, which should fix the problem.

GaborO's avatar
GaborO
GoTo Contributor

A new version (4.1.0.12203) has been released, which should fix the problem.

barceneaux's avatar
barceneaux
Active Contributor
3 years ago

Yeah, this did NOT fix the issue.

 

Fast User Switching causes this to happen, even after applying a "fix" (un-check, re-check LMIGUIAgent in Screen Recording, "caffeinate -u -t 2").

 

MacOS Monterey 12.6

LMI Version 4.1.0.12203

 

 

This is honestly a bit ridiculous at this point. This has been an ongoing issue for months with no solution.

 

What's the deal? Why can't this be resolved?

 

I have posted about this issue on: https://community.logmein.com/t5/Central-Discussions/LogMeIn-Display-Issues-Mac-OS-11-6-Big-Sur-amp-12-2-Monterey/td-p/283982 

  • barceneaux's avatar
    barceneaux
    Active Contributor
    3 years ago

    Macster - I would try this fix on at least one machine having the issue. Doing this fix cleared our issues immediately, even if we have never Fast User Switched on the machine.

  • barceneaux's avatar
    barceneaux
    Active Contributor
    3 years ago

    LogMeIn has identified the cause of this issue, and stated it may be caused by Fast User Switching.

     

    While LogMeIn works on the fix for this issue, I have found a workaround.

     

    The solution is to disable Fast User Switching entirely. While this may be an issue for some users that bounce from one account to another, this will [seemingly] fix the issue with LMI.

     

    To permanently disable FUS on a Mac machine, run these Terminal commands:

    1. sudo defaults write /Library/Preferences/.GlobalPreferences MultipleSessionEnabled -bool false
    2. defaults write .GlobalPreferences userMenuExtraStyle -int 0
    3. defaults -currentHost write com.apple.controlcenter UserSwitcher -int 8

     

    So far, every machine we have deployed this fix on has not had the issue again - even after multiple restarts and attempts to break LMI again.

  • Macsterguy's avatar
    Macsterguy
    Active Contributor
    3 years ago

    I have never used fast user switching on any of the 30 + Macs I maintain. I'm glad that works for some folks but no help for me. Thanks for your reply though!

  • Dudkin's avatar
    Dudkin
    New Member
    2 years ago

    This issue is still unresolved. In my case, it's a Mac mini, headless. Funny, that a cheap HDMI -> VGA dongle connecting to the HDMI port fixed all my problems. I tested it back and forth with multiple reboots, logins-logoffs, and works like a charm.

     

  • Macsterguy's avatar
    Macsterguy
    Active Contributor
    2 years ago
    I was under the impression that this issue was fixed and a software update quite some time ago… At long last all of my Apple Silicon Macs are working fine now.
  • barceneaux's avatar
    barceneaux
    Active Contributor
    2 years ago

    Well this is odd.. All of my issues have been resolved with recent releases of LMI - on Intel Mac minis, M1's, and M2's, all of which are connected to monitors.

     

    I WILL say, we do run some Intel Mac minis headless in a server environment, and we MUST plug in a dummy HDMI plug, shown below.

     

     

    Otherwise, I am sure we experience the same issues you are. It's not impossible to control the computers without them.. Just very difficult as the screen is extremely distorted.