Forum Discussion
Skype for Business meeting displays black screen and pause icon
Hello,
I received a notice from a user in our Enterprise. She is connecting to a meeting and the following is displayed when the presenter tries to share her screen. Look familiar to anyone? What should I be looking at to resolve?
Thanks!
Joe
- So, we ended finally found this https://support.microsoft.com/en-us/help/3150900/black-or-frozen-screen-when-you-share-your-screen-in-skype-for-busines We don't know how or when but several of our users had that registry key. When a user w/out that key was initiating a screen share it would pause (black screen with white pause icon in top left). If a user with those registry keys initiated the screen sharing it works because those w/out the reg key would I guess "fall back" to RDP protocol. So we're working on collecting all machines in our firm that have that registry key and removing.
13 Replies
We struggled with this for quite some time. We opened at least two tickets for this with MS, and we always were give the keys referenced in this thread. It turns out that a new ticket with MS revealed that we need to add more keys to disable VBSS in conferences. The keys we had been given disabled VBSS in P2P conversations, the new keys disable VBSS in conferences:
[HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Lync]
"EnableConferenceScreenSharingOverVideo"=dword:00000000
Additionally, if you use the 32-bit version of Skype for Business 2016 on a 64-bit operating system, add the following subkey:
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\16.0\Lync]
"EnableConferenceScreenSharingOverVideo"=dword:00000000
Deploying these keys and hoping that this is the end of this. Although I am trying to get the MSI codebase fixed to be able to use VBSS reliably rather than having to hack the registry to revert to RDP (not holding breath).
- Is this person a presenter in the meeting or a attendee?
- So, we ended finally found this https://support.microsoft.com/en-us/help/3150900/black-or-frozen-screen-when-you-share-your-screen-in-skype-for-busines We don't know how or when but several of our users had that registry key. When a user w/out that key was initiating a screen share it would pause (black screen with white pause icon in top left). If a user with those registry keys initiated the screen sharing it works because those w/out the reg key would I guess "fall back" to RDP protocol. So we're working on collecting all machines in our firm that have that registry key and removing.
- Glad to hear you got it figured out. What is odd that the registry keys were changed and started causing the issue.
John
- Joe,
I have not seen that yet. Curious, is this Windows 10, 7, or other? What version of S4B? Is it doing this to all conferences she attends or only this one person?
JohnOperating system
Windows 10.0.14393 SP: 0.0 Type: 1(Workstation) Suite: 256 Arch: x64 WOW64: TrueUser agentUCCAPI/16.0.4639.1000 OC/16.0.4639.1000 (Skype for Business)At this I know about only on conference. This was just reported to me moments ago. I'll be doing some troubleshooting and opening a case with MS to see what is happening here.- We are still on Windows 7, but matches the S4B version. I would be curious to know if other meetings do the same or only for the one person or contact. I have not seen this happen on our Windows 7 connection. I have connected via Windows 10 at home and do not recall seeing this either, but it has been a little while since I connected on Windows 10 to S4B.
John
