Symptoms

Flickering or blanking video.

Cause

No cause information.

Resolution

Flickering or Blanking Video Your Dell S2721Q, S2721QS, and S3221QS monitor may have flickering or blanking video when using a USB-C to DisplayPort (DP) adapter. Solution The following adapters should be used with the Dell monitors to stop the flickering or blanking video issue. MacBook M1: Dell USB-C to HDMI Adapter (Dell Part #47KD7)Dell USB-C Mobile Adapter - DA310 (Dell Part #0XJD9N) Mac Mini M1: Dell HDMI CableDell USB-C to HDMI Adapter (Dell Part #47KD7)Dell USB-C Mobile Adapter - DA310 (Dell Part #0XJD9N) Back to Top

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