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Thread: Display problems in FireFox while using zoom

  1. #1
    laskagifts NNTP User

    Default Display problems in FireFox while using zoom


    Could someone help me to resolve display issue that I see in openSUSE
    11.1?

    I used Firefox 3.0.4 but I see the same issue in Opera. What I see is
    everything looks normal in Firefox when you get to any webpage. Example
    below is a Russian site, but you see the same issue on any page. When
    you try to zoom in on the page everything readjust the size (pitures,
    fonts),but picture degrates in quality so it is unplesant to see. Here
    is an example of a normal page without zoom. It looks normal:



    [image:
    http://i128.photobucket.com/albums/p...2_regular.png]

    Most of the time you can adjust View in FireFox by Zooming in/out (Ctrl
    ++/ Ctrl -- )

    See the same page after 2nd zoom:


    [image:
    http://i128.photobucket.com/albums/p...e2_2times.png]

    Picture quality is degrates.


    See the same page after 4th zoom:


    [image:
    http://i128.photobucket.com/albums/p...e2_4times.png]

    Picture quality is degrates.

    See the same pate after 6th zoom:
    [image:
    http://i128.photobucket.com/albums/p...e2_6times.png]



    As you can see there is no issue with fonts. When you zoom in fonts
    adjust and look normal, but picture quality degrades with each zoom.

    It is a dual-boot PC with Vista and openSUSE 11/1. I have Nvidia Video
    Card GeForce 7900GS with Nvidia Linux driver. The interesting part that
    I don't see a problem on Vista. Firefox zooms in font and pictures and
    scales just fine. (no picture quality degradation)

    I'd like to find a solution for this zoom/scale issue. I'd like to use
    openSUSE,but this thing just drives me nuts and I keep switching back to
    Vista that I dislike, but has good FireFox zoom in feature.

    Any suggestions? Any soluitons? Have you seen that before?

    Thanks


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  2. #2
    laskagifts NNTP User

    Default Re: Display problems in FireFox while using zoom


    Well,anyone? anyone?


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  3. #3
    smpoole7 NNTP User

    Default Re: Display problems in FireFox while using zoom


    The reason for that is simple: the picture is a fixed size and when you
    increase the zoom, the image must be zoomed along with it. You're going
    to see the individual pixels -- same as if you were to take that same
    image, open it in an editor (such as Gimp) and then zoom in on it. This
    isn't a Firefox issue.

    Go to that exact same Web page in Windows, open it with Firefox, and
    then use "CTRL-+" to zoom. As I recall, earlier versions of Firefox
    would increase the text and framing, but leave the images alone. If it
    zooms the image along with the rest of the page, though, of course the
    image will look "grainy."


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  4. #4
    laskagifts NNTP User

    Default Re: Display problems in FireFox while using zoom


    That is not the case my friend. I'm trying to compare APPLES to APPLES.

    The same version of Firefox 3.0.5 in Windows and 3.0.5 in Linux.
    Windows zooms in and render pictures just fine, but openSUSE Firefox
    degrades the quality.

    Anyone else who is not guessing by knows how to solve this issue?


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  5. #5
    laskagifts NNTP User

    Default Re: Display problems in FireFox while using zoom


    Here is the example of the same page in Vista

    No zoom, regular page:

    [image: http://i128.photobucket.com/albums/p...rus2007/1.png]



    See the same page after 2nd zoom:

    [image: http://i128.photobucket.com/albums/p...rus2007/2.png]

    See the same page after 4th zoom:

    http://i128.photobucket.com/albums/p...arus2007/3.png


    As you can see Firefox in Vista displays images a lot better while
    zooming.

    The question stans: Does anyone knows how to resolve this issue in
    openSUSE 11.1?


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  6. #6
    smpoole7 NNTP User

    Default Re: Display problems in FireFox while using zoom


    Heh. I'm sorry if you think I'm "guessing."

    Because I had nothing better to do (and arguably need a life at times),
    I went into XP. I downloaded Mozilla 3.0.5 for Windows and upgraded to
    that version.

    Here's the key: I then set my screen resolution under Windows to the
    same thing that I use under Suse (1680 x 1050). When I zoomed, the
    pictures became grainy and ugly-looking. I'm not going to bother to post
    them here; if you choose not to believe me, that's fine.

    Pixels is pixels. You CANNOT expand a 100x100 pixel image to 200x200,
    and then to 400x400, without it becoming increasingly ugly. (At least,
    not without some really sophisticated rendering algorithms; maybe
    someone makes a plug-in for Mozilla, or an advanced driver for Linux,
    that will do this. I'm not aware of one, though.)


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  7. #7
    Axeia NNTP User

    Default Re: Display problems in FireFox while using zoom


    As said, pictures don't scale well.
    With the exception of ' vector graphics'
    (http://www.croczilla.com/svg/samples/) which were designed to do just
    that. They can't display something like a photo though.

    Font's are similar to vector graphics in that they scale well, I think
    the image render / scale thing is OS based as I remember a 'dangerous'
    bug in the .jpg implementation of windows affecting nearly everything..
    including browsers.

    According to ' this site ' (http://tinyurl.com/7z4zur) the quality was
    upped once, but seeing the date of the article I'm afraid you already
    have a version that has the 'good' quality.


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  8. #8
    smpoole7 NNTP User

    Default Re: Display problems in FireFox while using zoom


    Axeia;1926585 Wrote:
    > As said, pictures don't scale well.
    > With the exception of ' vector graphics'
    > (http://www.croczilla.com/svg/samples/) which were designed to do just
    > that. They can't display something like a photo though.
    >
    > Font's are similar to vector graphics in that they scale well ...


    Excellent point. I should've mentioned that.

    Incidentally, I was already familiar with this particular issue, which
    is why I responded. In the past, I've deliberately kept my resolution
    low (1024x768 max) because I have trouble seeing the icons and text at
    high resolutions. In fact -- gulp -- I've even excoriated Suse/Sax for
    defaulting to the highest possible resolution and I've whined about how
    hard it is to reduce the rez with some video cards under Linux.

    I bought a new wide-screen LCD monitor several days ago and had a brain
    storm. (Actually, a "well, duh!" moment.) I finally realized I could
    pump up the font and icon sizes to make the desktop acceptable to my old
    eyes.

    I now have beautiful, delicious-looking fonts and an overall display
    that's a work of art ... but yup, in Firefox (or Konqueror, for that
    matter, or Internet Explorer under Windows), the images sometimes look
    gritty. In fact, the "login" button for this forum is almost unreadable.
    It's a good thing I already know where it's at ...


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  9. #9
    Axeia NNTP User

    Default Re: Display problems in FireFox while using zoom


    compiz-fusion might actually be more than just eyecandy for you then,
    I've never found the windows key + mousewheel zooming all that great,
    but if you need a 'closer' look perhaps it's of help to you.
    (Personally I everything tiny, got fonts set to 8 or smaller, on a 15"
    1680*1050 monitor )


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  10. #10
    smpoole7 NNTP User

    Default Re: Display problems in FireFox while using zoom


    Axeia;1926647 Wrote:
    > (Personally I everything tiny, got fonts set to 8 or smaller, on a 15"
    > 1680*1050 monitor )


    Ouch! I can't do that. I'll be 53 years old on Jan 25th, and my old
    Mark 1 eyeballs just can't squint like that anymore!!!


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