When I view a dashboard in Tableau Desktop, everything is fine. I publish the report to a Tableau Server and now the dashboard is extremely oversized. Apparently, it is because I used Size: Automatic.

So I changed it to Size: Fixed , eg. "1400px x 750px". Again, in Tableau desktop, everything is fine. When I publish to Tableau Server, the dashboard fits to the screen, but there are unnecessary scrollbars. The vertical one showing a huge amount of empty white space below. See pic. The horizontal scrollbar is also not needed because the whole screen fits.

I tried changing the size, but any change doesn't make a difference. Even if I put it very small, the scroll bar is still there.

Any idea how can I get rid of this?