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Full (Rotated Display) Screen Fit-to-Screen Bug

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    Full (Rotated Display) Screen Fit-to-Screen Bug

    1050x1680 (rotated display)
    exPee SP2
    Nvidia 6800GT (All driver versions)
    3Ghz P4 Northwood
    1GB RAM
    irfanview 4.10 (bug not present in 3.99)

    When the display is rotated to 1050x1680 (portrait mode)
    a Full Screen Fit-to-Screen display Bug persists and manifests
    as a blank page or black background only. (especially with large pics)

    Cannot step through files in the directory, blank black background persists.

    You can ZOOM-OUT 5 or 6 steps and the photo will appear, but re-zoom in
    and the photo disappears.

    V3.99 irfanview displays the pics perfectly.



    similar report as user Nago:

    Hello,

    I already posted this bug to the german forums, so maybe its considered a duplicate

    I'm working with different monitors in different resolutions with different
    aspect ratios. Sometimes those modern monitors allow to rotate the
    picture about 90°, so you can see a full page on the screen.

    I don't know which version started this (I have 3.99 here up to 4.10)
    and this is the bug description:

    Large pictures that should be "fit-to-screen" (not fit-to-window which
    destroys the aspect ratio of the picture) appear much to big, cutting
    off parts of the picture. Examples:

    Here is a picture with a red border. You see it doesn't fit to the
    resolution, so its fit-to-screen (in window mode):


    If i go to fullscreen, you see the red border is gone at the right:


    Taking the same picture and rotating it as a file, rotate the monitor
    back to 4:3 format, the picture is nicely fit:


    The black borders show clearly, that there the thing works as it should.

    I guess, something is reported/calculated wrong when the driver
    (its the newest ATI Catalyst) or the desktop rotates the screen.
    I haven't seen any debug mode or anything to activate in Irfanview,
    so I can't report more than this strange behaviour/bug.

    It can be "fixed" somehow by reducing the width/height in fullscreen
    by 95% - but it doesn't work always.

    Thank you for listening.
    nago

    #2
    Hi woodchuk,
    Your problem can't be produced overhere (with various formats). Also much larger images than your 1050x1680 example are to show in rotated view (fit2screen mode) in IrfanView 4.1. Pity you didn't mension the format of your image.

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