1116298 - screen share "application" returns faulty results with dual monitor setup

Status: RESOLVED INCOMPLETE

(Core :: WebRTC: Audio/Video, defect)

Description

[Michael Graves]

Attachment: 001603.jpg

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0
Build ID: 20141125180439

Steps to reproduce:

- Launch PowerPoint 2103, loading an exiting presentation
- Make it full screen on monitor #1 (left)
- Launch FF34, making it full screen on monitor #2 (right)
- Visit gUM test page, selecting Try Demo
- Select to share "application"
- From the list of application select the PowerPoint instance



Actual results:

- The resulting media stream always has the dimensions of the entire screen, not the application
- When PowerPoint has the focus the media stream includes the application visuals in the left half of the stream
- When PowerPoint does not have the focus the media stream includes a yellow rectangle where PowerPoint should be seen (screen shot attached)
- The right half of the media stream is always a black rectangle.


Expected results:

- The stream dimensions should reflect the size of the application itself
- The stream contents should reflect the application, regardless of whether it has the focus.

Comment 1

[Michael Graves]

I have since determined that this behavior is application independent. It occurs with any applications I try, even those that are not from MS Office.

Comment 2

[Maire Reavy [:mreavy]]

Juan -- Can you try to repro this and confirm this for triage?

Comment 3

[juan becerra [:juanb]]

I am not able to reproduce this on an environment as described in comment #0.

If I use the gUM test page, I can share an application and the stream dimensions reflect the size of the application in the monitor, whether it has focus or not.

One of the media streams is always black. 

If I try a Hello conversation and share an application, I can see the stream with the right dimensions of the application, whether it has focus or not (I tried placing a different application on top of it when not maximized, for example.

I am able to see both conversation streams fine as well.

So, there might be a problem with the gUM test page, but I am not able to reproduce the original problem described here.

Michael, can you still reproduce this using Firefox Developer Edition (41.0a2)?

Comment 4

[Maire Reavy [:mreavy]]

Closing this as incomplete since we can't get the info we need to repro.  We can reopen later if we get that info.