MultiViewer

Motorsport desktop client

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DRM/playback issues

Sometimes, MultiViewer doesn't work out of the box for users. There are a few scenarios that have happened before, with the solution documented below:

When I open a stream, the window stays black
Depending on your platform, this could have various causes, but a few possible reasons could be:
  1. You may be streaming your content (for instance using AirPlay mirroring, or using an iPad as an external display). This isn't supported for DRM protected streams right now.
  2. You may be using an unsupported cable, hub or display. Your display should support HDCP for DRM to work properly.
  3. You could be having an intermittent issue we haven't been able to diagnose yet. Open Settings, scroll down to the "Danger area" and press Reset Widevine and restart. That clears the Widevine CDM and the app's caches, then restarts MultiViewer. Your settings, setups and sign-in stay where they are.
  4. If you upgraded from an earlier version, you may be able to fix the black screens by signing out in the older version, then signing in in the new one.
  5. As a last resort, if the Widevine reset didn't help, quit the app and remove the app's data directory (%APPDATA%/MultiViewer on Windows, ~/Library/Application Support/MultiViewer on macOS, ~/.config/MultiViewer on Linux), then open the app again. This wipes everything, including your settings, setups, sign-in and logs.
Unstable playback, stuttering or excessive frame drops

If you're on Windows you may be able to resolve this by disabling VSync and frame rate limiting.

NVIDIA
  1. Open the NVIDIA App and go to Graphics → Program Settings.
  2. Pick MultiViewer from the list. If it isn't there, open the three dots of the programs list and choose Add a program.
  3. Under Driver Settings, turn off Vertical Sync and Max Frame Rate.
  4. Background Application Max Frame Rate is a global setting, so switch to the Global Settings tab, scroll to the bottom, click Show Legacy Settings, and turn it off there.
  5. Restart the app.
The NVIDIA App's Graphics page on the Global Settings tab, with legacy settings expanded and Background Application Max Frame Rate showing 60 FPS

NVIDIA retired the Control Panel in May 2026, from driver 610.47 onwards. If you're on an older driver, or you upgraded in place and still have it, the same settings live under 3D Settings → Manage 3D Settings → Program Settings.

AMD
  1. Open the AMD Radeon Software (right click on your desktop, click Show more options → AMD Radeon Software)
  2. Go to the Gaming or the Graphics tab in the menu bar
  3. Either system-wide or per application, disable Wait for Vertical Refresh, Radeon™ Chill and Max Frame Rate/Frame Rate Target Control
  4. Click Apply and restart the app.

Finally, make sure that after changing these, hardware acceleration (in Settings) is enabled.

The player keeps 'loading'
This is usually a temporary issue with a player window, you can try reloading (press F5, Ctrl+R or Cmd+R, or by right clicking and selecting "Reload"). If this doesn't work, close the player and try opening it again.
The player has scrollbars
This happens when the window is too small to fit the telemetry. You have a few options:
  • Hide the telemetry by pressing T
  • Zoom out the window by pressing Cmd+minus, Ctrl+minus or Ctrl+Shift+minus (not numpad minus)
  • Increase the size of the player

Did you not find the solution to your issue?

You can always join our community and ask for help there:

Join the MultiViewer community

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MultiViewer is an unofficial app and is not associated in any way with the Formula 1 companies. F1, FORMULA ONE, FORMULA 1, FIA FORMULA ONE WORLD CHAMPIONSHIP, GRAND PRIX and related marks are trade marks of Formula One Licensing BV. Watching F1 TV content in MultiViewer requires a paid F1 TV subscription, and MultiViewer doesn't help circumvent any content protection or limitations by F1 TV. MultiViewer is a non-commercial, fan-made application. Data is used for non-commercial, fair use. All product, team and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Any product names, logos, brands, and other trademarks or images featured or referred to within the app are the property of their respective trademark holders. These trademark holders are not affiliated with MultiViewer or its contributors. They do not sponsor or endorse MultiViewer or any of our products.