Screen sharing on teams call freezes extended display

marshalljeffersson wrote:

Hi,

I have a recurring issue for which for which i cannot find a resolution.

Whenever I share my screen through a teams video call while using two external monitors (extended display), the shared monitor completely freezes. This includes the mouse pointer that disappears from the shared external display and means that teams sometimes crashes but the issue is clearly related to screen sharing.

I have tried all options from updating, closing programs etc. It seems to work better when I have recently restarted the Mac but this is no permanent solution.

Are there eg. any know solutions/settings that I could try out to reduce the memory/CPU etc. a shared screen on a teams chat uses. Would changing the resolution or refresh rate make a difference?

This issue basically means that I cannot share my screen on teams calls which should not be an issue on a high-spec Mac (see below).

Any help would be appreciated.

=======================

MacBook Pro

Apple M3 Pro

18GB memory

Maybe a workaround, not a true solution ... I have used Teams extensively (daily) for years on a MacBook Pro M3, often sharing but I generally have not used SCREEN sharing but rather sharing a specific WINDOW. With multiple screens as you have (three in fact), it might be that Teams is not handling the references properly. However the WINDOWS are independent of the screen, they are simply listed and you can select one for sharing. If you need to share your entire screen, as opposed to one WINDOW, then what I am suggesting won't help. The problem could lie with the way Teams is handling the Mac screen interface. Teams is Windows-centric and there are a number of capabilities that are compromised on Macs. If you really just need to share a window, versus an entire screen (which may have scores of windows), then I would try sharing just that window and see if that works better.

I have also shared screens (when multiple screens were in use) also, but mostly accidentally when I really meant to share only one window. There are some privacy concerns when sharing entire screens versus just one window.

By far the easiest way to cause poor performance, instability, overheating and crashing is to install ANY third-party speeder-uppers, Cleaners, Optimizers, Virus scanners, Bit Torrent, or a VPN that you installed yourself.

if those are not installed, see if there is any insight on this previous discussion:

Browser freezes when sharing the screen w… - Apple Community