Most of the cases you are experiencing rendering problems with google maps using Chrome in Debian, such as black screen or poor quality on move and resize or slow response, looks like a WebGL problem - to resolve the issue try the following:

  1. Update your Chrome browser to the latest version
  2. Check if WebGL is enabled:
  3. Disable WebGL (hardware accelaration) from Chrome's advanced settings:

Chrome disable hardware accelaration