I have the same problem as in this post Why is my screenshot so dark? This post however is closed.
I have the problem with both gnome screenshot and XNview. It does not matter what program I'm taking a screenshot from (as suggested/asked in the related post). So it does not matter if i take a screenshot from Firefox or in this case the document viewer.
Also the problem is aggravating. Today I took three screenshots right after each other. The first one is ok, the second is too dark and the third is even darker!
I have an image that shows this progresively darker screenshots but I can't upload it.
I am using 16.04 64 bits and I am using a dual screen set up.
(Edit Additional Info)
I noticed my whole screen gets darker at each screenshot
So presumably what happens is this:
- when I select screenshot from keyboard something darkens the screen a bit (both screens in my case)
- The actual screenshot is taken.
- This is actually a bit dark
- Take next screenshot
- Screen goes even a bit more dark
- Next screenshot is more dark
With the first screenshot the problem is hardly noticable. That is why I said the first one is ok. On close observation it is not.
To check if you have the same problem: make 20 or so screenshots and your screen will be approx at a brightness of 50%
More info:
Pull down menus are not affected. E.g. the small search box in firefox or a pull down selection field in Libre Office show as white once selected while the rest of the screen stays at reduced brightness level.
