Re: Getting to 1920x1200

[Phil Meyer]

Leo wrote:
>  Hardware:
>    Monitor - Gateway FPD2485W, LCD Widescreen (1920x1200)
>    Video Card - Intel Integrated i810
>    Desktop - KDE
>  Hello and TIA for any insight anyone can provide...
>
>  SWEET Monitor!  But, I've only gotten it to 1600x1200 with that
>  awful stretchy-effect.  (My original install used an IBM P260 CRT at
>  1600x1200.)
>  Right-click --> Configure Desktop --> Display
>  Here, my highest-res option under screen size is 1600x1200.
>  K Menu --> System --> Display
>  This dialog allows me to select "LCD Panel 1920x1200" for the monitor
>  type (the 2485W is not listed).  I can also select 1920x1200 as the
>  Resolution under the "Settings" tab.  Seems to have no effect.
>  Does anyone have any suggestions on how to get to 1920x1200?
>
>           -Leo!
>
>
>     
Its likely not the monitor, but the graphics driver that is the issue.

For instance:  the vesa driver won't do 1920x1200 on anything I have tried.

You need to examine:
/etc/X11/xorg.conf
and see what driver you are using.

If all of that is correct, then either:
    1. The monitor is reporting invalid EDID data values
    2. You have invalid Modeline in /etc/X11/xorg.conf
    3. You have specified 1600x1200 in your personal resolution 
preferences. (System/Preferences/Resolution)

To chase down EDID data errors, refer to /var/log/Xorg.0.log
search for: EDID data

and make sure that the monitor is reporting frequencies that can support 
1920x1200.  The 24" Dell 2405FPW reports a value that is .1 too low, 
even though it can and does support 1920x1200.

In this case, you have to turn EDID off and set a proper H and V in 
/etc/X11/xorg.conf.

To turn off EDID I had to put:
        Option      "ModeValidation" "NoMaxPClkCheck"
in the Screen section.

I then had to specify in the Display section:
        HorizSync    31.5 - 90.0
        VertRefresh  60.0 - 60.0
Which is sufficient to display 1920x1200 at 60Hz.

YMMV

Good luck!