Chromebook & Linux

Can't share screen during a video call on Chromebook

Screen sharing failures are usually a permission block from the browser or the video call site, not a Chromebook fault. Granting the right permission fixes most cases.

Difficulty
Easy
Time
5–15 minutes
DIY cost
$0

Symptoms

  • Share screen option is grayed out
  • Sharing starts but shows a black screen to others
  • Permission popup never appears
  • Works in one browser tab but not another

Likely causes

  • CommonScreen sharing permission blocked in Chrome settingsChrome requires explicit permission for a site to capture the screen.
  • CommonVideo call app running as an Android app instead of in the browserSome Android versions of call apps don't support screen sharing on ChromeOS.
  • PossibleExtension conflictAn ad blocker or privacy extension can interfere with screen capture.

What to do

  1. Use the video call service in the Chrome browser rather than an installed Android app version if available.
  2. When prompted, choose to share 'Entire screen', 'Window', or 'Tab' depending on what the meeting needs.
  3. Check Settings > Privacy and security > Site settings and confirm the meeting site isn't blocked from screen capture.
  4. Try disabling ad blockers or privacy extensions temporarily to rule out a conflict.
  5. Restart the browser and rejoin the call if the share option was grayed out before.
  6. Update Chrome/ChromeOS via Settings > About ChromeOS if it's been a while since the last update.

When to call a pro

Not applicable; this is a browser/software permission issue.

Safety

Generally low risk

Generally low risk for a careful person. Stop if anything looks different from what this guide describes.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.