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  • [gentoo-dev] Mysterious behavior of app-text/qpdfview

    From Andrey Grozin@21:1/5 to All on Sun May 12 12:10:01 2024
    Hello *,

    The behavior of app-text/qpdfview has changed recently (approx. durung the
    last week) in a mysterious way. qpdfview itself has not changed (the
    revent -0.5_p1 is irrelevant - I'm discussing the stable version 0.5).

    Until recently, qpdfview displayed color pdf files as expected - in color.
    Now it displays them as black-and-white (more exactly, as levels of grey).
    The source of qpdfview itself has not changed - it's the same version 0.5
    which worked fine a week ago. So, it's the result of an upgrade of some
    library on which it depends.

    It depends on a number of Qt5 libraries (some of them were upgraded
    recently); on mesa (indirectly); on poppler; and on some things which
    don't seem relevant for the color/black-and-white issue. At the moment I
    have no idea where to start investigating the problem.

    Just to check: xpdf, mupdf, gv, zathura display these color pdf files correctly, in color. They depend on many of the same libraries; if some of
    the recently upgraded libraries suddently has become broken, this does not influence these other pdf viewers.

    Any ideas where to start investigating what has become broken?

    Thanks in advance,
    Andrey

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  • From netfab@21:1/5 to All on Sun May 12 12:20:01 2024
    Hi,

    Le 12/05/24 à 10:02, Andrey Grozin a tapoté :
    Any ideas where to start investigating what has become broken?

    Are you sure that grayscale option is not enabled ?

    View -> Convert to grayscale

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  • From Andrey Grozin@21:1/5 to netfab on Sun May 12 13:20:01 2024
    On Sun, 12 May 2024, netfab wrote:
    View -> Convert to grayscale
    That's it! I'm absolutely sure that I never enabled this option on
    purpose. Probably, some accidental mouse click.

    Sorry for the noise,
    Andrey

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