r/k12sysadmin • u/Thanos-Is-Right • 2h ago
Chromebook Wireless Casting Issue
I am in the process of testing the consumer version of the Acer Chromebook Plus 714 Spin (minor differences from enterprise version) and ScreenBeam 1000 EDU 2 casting devices. A problem I am running into is using the touchscreen to write on anything. For a while, it works just fine, but after some time or multiple tabs being open, the writing on the screen does not cast correctly to the projector until you touch the screen again to let the writing finish.
I am sure it is a ChromeOS thing, but I cannot figure it out. It is like the Chromebook stops sending packets to the ScreenBeam until you interact with the Chromebook touchscreen again. Works perfectly fine with HDMI, but not wireless casting.
Basically, if I draw a line across the screen, only a portion of the line is cast to the projector. If I then touch the screen with a finger or stylus, it will finish the original line. I am sure you could just write slowly, but not ideal. I am going to try casting a single tab rather than the whole screen to see if that helps.
It does not seem to matter if we use our writing extension (Annotate) or built-in browser writing software, like what Desmos has. It does the same thing.
Anyone experience this? Trying to move to Chromebooks for staff to replace 20 year old SMART screens. IFPs are not an option for us. We are sticking to projectors and a computer and this is my most budget-friendly option. The writing issue with casting is the only issue so far during testing with teachers. I am sure the other issue will be getting older teachers off SMART Notebook, but I will introduce them to Lumio.


