MacOS – How to fix a macOS screenshot of an X11 window that’s bleached / white / too light

catalinamacosscreen capturex11

I'm facing a little problem while taking a screenshot of an X11 window
(using XQuartz – if there's something better out there, lemme know).

I tried everything:

  • Entire Screen
  • Window-Only
  • Selection

Even tried recording the screen, same results – the box I need to screenshot (the one on the right) is always white:

enter image description here

(Side note: In the pic above the window is not "focused" (selected), but even with the "focus" on it, nothing change – even tried using the XQuartz setting where it focus the window on mouseover.)

This is how it should be:

enter image description here

Any idea on what setting I might need to change, in order to get my screenshot to work properly?

Oh… Almost forgot, I'm running the last macOS Catalina update (10.15.6)

Thanks in advance.

I might've found a solution by setting the Output as low as "256 Colors"

This the result

enter image description here

Edit: Added a pic of how it should be.
Edit 2: Added a possible solution.

Best Answer

Go to Preferences under the XQuartz menu and then click on Output. You'll see a pulldown for colors. Make sure its set to millions of colors. Then restart XQuartz.

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