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  • Flat screen monitors don't fill screen

    Had a call today that Gateway 15-inch flat screen
    monitors do not allow DOS programs to fill the screen.
    Anyone have a solution (other than don't buy one?)
    How long is an idea? Write it down.

  • #2
    Do you mean that they don't support an 80x25 text display? I'd be astonished if that was true, since all Intel CPUs use that screen mode during boot-up.

    What happens when you try to switch modes? Does it simply fail or do you see some kind of message, or...?

    Hmmm... Maybe you have to use a special video driver to use the monitor with Windows, and maybe it doesn't support 80x25?

    -- Eric


    ------------------
    Perfect Sync: Perfect Sync Development Tools
    Email: mailto:[email protected][email protected]</A>

    "Not my circus, not my monkeys."

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    • #3
      Eric,
      I had a call on this this morning. The user says
      that when in full screen mode about 70% of the monitor
      is filled. The largest window size is 2/3 of the screen.
      I don't have one of these monitors, but may go to a
      Gateway store here in Omaha to see for myself.
      I'm curious if their monitor just needs to be aligned.



      ------------------
      How long is an idea? Write it down.

      Comment


      • #4
        Is that what the screen looks like during boot-up? If so, that may just be the way their text-mode screen looks. I assume that the surrounding screen area is blank?

        ------------------
        Perfect Sync: Perfect Sync Development Tools
        Email: mailto:[email protected][email protected]</A>

        "Not my circus, not my monkeys."

        Comment


        • #5
          No adjustments on the monitor. The user is now in
          contact with Gateway and will be getting back to me.



          ------------------
          How long is an idea? Write it down.

          Comment


          • #6
            Unlike CRTs, LCD displays have a fixed number of pixels available, so the display resolution is not malleable. In order to maintain a proper aspect ratio and keep a clean-looking display, it's not uncommon for an LCD display to use different amounts of screen space to emulate different display resolutions. This is an inherent limitation of the technology.

            It may be possible to find a driver that will use the entire display size by "stretching" the image. The fact that this is not the default behavior strongly suggests that the result wouldn't stretch evenly, producing unacceptable display quality.

            ------------------
            Tom Hanlin
            PowerBASIC Staff

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            • #7
              Sort of reminds me of when I bought a DVD player
              and discovered that most movies are picture box.

              ------------------
              How long is an idea? Write it down.

              Comment


              • #8
                I have exactly the opposite problem !
                On my notebook (EXTENSA 368T, LCD 800x600 pixels)
                I would like to see a reduced DOS window (640x480) in full-screen mode, and I cannot.
                The window is scaled to full-size, and in graphic mode (SCREEN 12)
                a single logic pixel can become anything from one to four physical pixels.
                So the image is quite bad.
                Does anyone know of drivers fixing this problem ? My vendor was not able to solve it.

                ------------------
                Aldo Vitagliano
                mailto:[email protected][email protected]</A>
                Aldo Vitagliano
                alvitagl at unina it

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                • #9
                  Use an external CRT (conventional) monitor? As Tom said, LCD/matrix technology has it limits and can not be all things to all people.


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                  Lance
                  PowerBASIC Support
                  mailto:[email protected][email protected]</A>
                  Lance
                  mailto:[email protected]

                  Comment


                  • #10
                    Perhaps I can propose to exchange my monitor for the Gateway one ! ....
                    Being serious, since both kinds of functionality are clearly possible, it should be easy to design a LCD driver
                    which gives to the user the option of either (a) scale a 640x480 logical screen to the full physical pixel size of the monitor
                    or (b) let the 640x480 logical size fill a 640x480 physical size, using only part of the screen area.
                    It is a problem of software, not hardware.
                    Does anyone know of notebooks/drivers having this option ?


                    ------------------
                    Aldo Vitagliano
                    mailto:[email protected][email protected]</A>
                    Aldo Vitagliano
                    alvitagl at unina it

                    Comment


                    • #11
                      On both my laptops (IBM and Toshiba) the physical screen is 800x600 and there is a BIOS setting to run DOS text as full screen or use only 640x480 pixels in the center. Maybe Gateway also has a setting in the BIOS?

                      John


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