On Sun, Feb 24, 2008 at 3:39 PM, Gus Wirth <[EMAIL PROTECTED]> wrote:
> Carl Lowenstein wrote:
> > So I bought a wide-screen monitor, 1920x1200. I can't make my
> > combination of hardware and software drive the 16:10 aspect ratio.
> >
> > Video card is Nvidia NV11 GeForce2 MX/MX400 in AGP slot. Has a single
> > analog VGA connector. Monitor can use either VGA or DVI.
> > Operating system is (still not upgraded) Fedora Core 3.
> >
> > /etc/X11/xorg.conf uses "nv" driver. tt works reasonably well at
> > 1600x1200 although the display is somewhat distorted. Icon of a CDrom
> > is definitely elliptical
> >
> > Do I need newer software, or a newer video card? I realize that DVI
> > is the new thing.
> >
> > I will try a Fedora 8 live CD as soon as I finish composing this message.
>
> Have you created a custom mode line for the monitor? The EDID info in
> the output log (/var/log/Xorg.0.log) should give you some hints. I had
> to do this for my laptop display.
>
> In some cases you may have to tell the driver to ignore the EDID info
> and force feed the monitor parameters to the Xorg driver.
After a bunch of flapping around, I seem to have an xorg.conf that
works. I read the modeline parameters for a 1920x1200 display from
/var/log/Xorg.0.log. Also the max and min Horiz and Vert rates. I
found a program gtf(1) with which I could calculate parameters for
some other resolutions, namely 1680x1050, 1440x900, and 1280x800.
I put the "modeline" data spaced out in xorg.conf, like:
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "LCD Panel 1920x1200"
HorizSync 30.0 - 82.0
VertRefresh 56.0 - 76.0
Option "dpms"
Mode "1920x1200" # from Acer data
DotClock 154.0
HTimings 1920 1968 2000 2080
VTimings 1200 1203 1209 1235
Flags "-Hsync" "+Vsync"
EndMode
repeat <Mode> ... <EndMode> for 3 other reolutions.
I also put these resolution numbers in Section Screen, to replace the
ones that were there before.
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1920x1200" "1680x1050" "1440x900" "1280x800"
EndSubSection
This seems to have the effect of putting these resolutions at the head
of the xrandr(1) list. This looks like the same list that the GUI
Preferences -> Screen Resolution reads from. Now if I could only
figure out how to get rid of a dozen VESA resolutions that also show
up in these lists.
It's been an educational afternoon/evening.
carl
--
carl lowenstein marine physical lab u.c. san diego
[EMAIL PROTECTED]
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