1646003 - The cursor is flickering when sharing an entire screen on Windows

Status: RESOLVED DUPLICATE of bug 1557987

(Firefox :: Site Permissions, defect)

Description

[Daniel Bodea [:danibodea]]

Note

• When the user shares an entire screen, he will notice that the cursor has a slight flicker.

Affected versions

• Nightly v79.0a1
• Beta v78.0b7
• Release v77.0.1
• ESR v68.9.0esr

Affected platforms

• Windows 10
• Windows 7

Steps to reproduce

1. Engage in a (Zoom) video call.
2. Allow mic and camera permissions.
3. Click the web-app's "Share Screen" button.
   Observe: The screen-sharing permission door-hanger is displayed.
4. Select a screen option from the drop-down.
   Observe: The cursor starts flickering.
5. Click on the "Allow" button

Expected result

• The cursor is properly displayed. No flicker is visible.

Actual result

• The cursor has a visible flicker.

Regression range

• This is NOT a recent regression.

Additional notes

• Reproduced with Zoom and jump.chat.
• The flicker appears to be more observable when the cursor is on the primary monitor, the higher refresh rate monitor (144 Hz).
• This issue is only reproducible on Windows.

Comment 1

[Paul Zühlcke [:pbz]]

Thanks! I don't think this is related to webrtc UI code though.