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Re: Need Help getting 1280X1024 on Dell Inspirion 7500

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  • nomad_man
    The modeline you mentioned is in fact inside my XF86Config file. After X started, I searched /var/log/XFree86.0.log & came up with the following references to
    Message 1 of 3 , Jul 30, 2002
      The modeline you mentioned is in fact inside my XF86Config file.
      After X started, I searched /var/log/XFree86.0.log & came up with the
      following references to "1280"

      (--) ATI(0) virtual size is 1280x1024 (pitch 1280)
      (**) ATI(0) Mode "1280x1024": 107.9 MHz, 59.1 KHz, 54.8 Hz
      (II) ATI(): Modeline "1280x1024" 107.97 1280 1312 1432 1704 1024 1026
      1029 1054 (null)

      Also, for what it is worth, I set the VertRefresh to 50.0-100 as
      directed by http://support.jp.dell.com/docs/systems/psyd/overview.htm
      but this didn't seem to change anything as things still do not look
      correct.

      Furthermore I should clarify what I mean by things do not look
      right. In 1400x1050, I see a solid gray background after I login &
      start X/mwm. In 1280x1024, there are light & dark gray vertical
      strips, maybe 10 pixels wide. On top of that, occasionally
      individual words within an xterm seem to be fuzzy. That is maybe the
      top pixel of a words will be duplicated one pixel higher or vice
      versa for the lower pixel.

      Can some e-mail me an XF86Config file where they are successfully
      running Linux 7.2 using XFree 4.1 where the screen is 1280x1024?

      Thanks in advance

      Steve


      --- In linux-dell-laptops@y..., david carlton <carlton@m...> wrote:
      > On Mon, 29 Jul 2002 21:52:07 -0000, "nomad_man" <nomad_man@y...>
      said:
      >
      > > Right now I am running Linux 7.2 & using XFree 4.1.0 & an ATI Rage
      > > Mobility graphics card. Currently, my screen has a resolution of
      > > 1400x1050, but I would like to reduce it to 1280x1024.
      >
      > Hmm. Mine will run at 1280x1024 if I ask it to (I think - it's at
      > home, I'm at work!) without requiring anything special, which
      suggests
      > that XFree 4.2 contains a mode line that runs at 1280x1024 on
      > 1400x1050 laptop screens. (Either that, or the "nvidia" driver is
      > less picky than your driver, but that seems a little less likely.)
      > I'm not sure where it's getting that mode line from, but what
      happens
      > if you put these lines:
      >
      > # 1280x1024 @ 61 Hz, 64.2 kHz hsync
      > Modeline "1280x1024" 110 1280 1328 1512 1712 1024 1025 1028
      1054
      >
      > in the Monitor section of your XF86Config-4?
      >
      > If that doesn't work, what messages are you getting in
      > /var/log/XFree86.0.log? Search through that for 1280 (or even for
      > 1280x1024) and see if some of the messages mention reasons why
      various
      > possible modelines would be being rejected.
      >
      > For what it's worth, I'm not sure I would ever expect things to look
      > perfect at 1280x1024. Laptop monitors, unlike CRT's, have physical
      > pixels, so running at resolutions that don't divide your screen
      > resolution is going to involve some amount of compromising. (And
      the
      > fact that you're trying to run at a 5x4 ratio while the screen is a
      > 4x3 ratio means that your pixels will be less square than normal, so
      > images may seem stretched horizontally.) But it sounds like you're
      > reporting something worse than that, especially given that you're
      > taking out the VertRefresh line. (Though I have no idea how good
      > I7500's are at running at a non-native resolution; I'm only
      recently a
      > denizen of the laptop world, so I don't know how new that technology
      > is.)
      >
      > David Carlton | <http://math.stanford.edu/~carlton/>
      > carlton@m... | I8200: <http://math.stanford.edu/~carlton/i8200/>
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