https://bugs.kde.org/show_bug.cgi?id=460675

--- Comment #9 from Toby <tianer2...@outlook.com> ---
(In reply to Toby from comment #8)
> (In reply to Ye Jingchen from comment #4)
> > (In reply to Vlad Zahorodnii from comment #3)
> > > The reason why screenshots are blurry is that kwin downscales the window
> > > contents. 5.27 should be better. Note that the client side should also
> > > support fractional scaling. Qt should support fractional scaling in 6.5+
> > 
> > I think the situation is a bit frustrating even in 5.27, because I still
> > can't get a screenshot that looks the same as what is on screen.
> > 
> > My theory is the same as what Toby described initially, that screenshots by
> > Spectacle are way blurrier that on screen, not only because window content
> > is scaled down (from 2x), but it's *scaled down and up again*, creating
> > artifacts not present on screen.
> > 
> > Though I wonder whether this is caused by kwin sending blurry images to
> > Spectacle, or Spectacle mess up scaling stuff internally.
> 
> 5.27 worked for me on Fedora KDE. I tested by displaying an image with
> single-pixel dots on the screen and taking a screenshot, all dots are
> clearly visible and not blurry. I guess it could be a distribution-specific
> issue.

Or might be related to multi-monitor setups

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