Vantage documentation

Video rendering

Vantage enables compatibility video rendering by default. This avoids blank or flickering video seen with some GPU, driver and slavirtual-machine combinations.

Default: compatibility

The default starts WebKit with software-oriented compositing. It favors reliable playback over maximum rendering performance and requires no setup from desktop-launcher users.

Try accelerated rendering

Open Menu → Settings, choose Use accelerated, then reopen Vantage. Re-enable compatibility mode if video has audio but no picture, flickers or continually changes size.

Command line

vant settings video-rendering compatibility
vant settings video-rendering accelerated

For a single run without changing the saved setting:

vant --compatibility-video-rendering
vant --accelerated-video-rendering

vant --fix-broken-video remains an alias for a one-run compatibility launch.