Sharing a Desktop on a Video Conference using SX20

[permalldnit]

Hello,

We have SX20 conference units in each of our 3 main offices. We have just started to use Desktop sharing over internal Video conferences and this works well when using a Windows PC. However, when we do this with a MAC Book the desktop when shared comes up as just a big black box. I have played around with the resolution but it makes no difference.

Can anyone help?

Thanks,

Glenn

[Patrick Sparkman]

MACs are known for this issue, it's because they output HDCP protected content and video conference endpoints (with the exception of the Spark Room 55) will display a black screen as they can't display HDCP content.
Workaround is to put something in the video path that removes HDCP.

[permalldnit]

Patrick thanks for the reply.

I just want to check one thing. This only happens with screen share on Video Conferences. If I just want to display the MAC on the screen for a presentation that does work. Would HDCP still be the reason for this?

The cable coming from the unit is HDMI and I am using an adapter to convert it from HDMI to Thunderbolt / Mini Display Port on the Mac.

Cheers in advance.

[Patrick Sparkman]

If it were an HDCP issue, you would get a black screen all the time, regardless of being in or out of a video conference. Are you sending presentation through the SX20 to the display when outside of a call, or are you going directly to the display? What happens if you try using a Windows PC?

[permalldnit]

Patrick,

We are using the SX20 for the presentation aswell.

Windows laptops and desktops work fine on video sharing and presentation.

Cheers,

Glenn

[Patrick Sparkman]

When in and out of a call, what status appears on the DVI input and source?

• Video Input DVI 2
• Video Input Source 2

[permalldnit]

Sorry I have not had a chance to check this yet.