Can't get X to start in 1280 x 1024 resolution

[Russell Shaw]

Tom wrote:
> I have the conf and log file here:
> 
> http://forums.gentoo.org/viewtopic-t-485818.html
> 
> You can probably read everything in
> a better format than this e-mail.
> 
> I have an LG CB575E-NA monitor. The
> manual gives the maximum resolution
> as 1280 x 1024, with a horizontal
> sync of 30 - 70 kHz and a vertical
> refresh of 60 -85 Hz.
> 
> The xorg.conf:
> 
> Section "ServerLayout" 
>     Identifier  "X.org Configured" 
>     Screen      0 "Screen0" 0 0 
>     InputDevice "Keyboard0" "CoreKeyboard" 
>     InputDevice "Mouse0"    "CorePointer" 
> EndSection 
> 
> Section "Files" 
>     RgbPath     "/usr/share/X11/rgb" 
>     ModulePath  "/usr/lib/xorg/modules" 
>     FontPath    "/usr/share/fonts/misc" 
>     FontPath    "/usr/share/fonts/75dpi" 
>     FontPath    "/usr/share/fonts/100dpi" 
>     FontPath    "/usr/share/fonts/ttf-bitstream-vera" 
>     FontPath    "/usr/share/fonts/default/ghostscript" 
>     FontPath    "/usr/share/fonts/Type1" 
> EndSection 
> 
> Section "Module" 
>     Load        "dbe" 
>     Load        "dri" 
>     Load        "extmod" 
>     Load        "freetype" 
>     Load        "glx" 
>     Load        "record" 
>     Load        "type1" 
>     Load        "xtrap" 
> EndSection 
> 
> Section "InputDevice" 
>     Identifier  "Keyboard0" 
>     Driver      "kbd" 
> EndSection 
> 
> Section "InputDevice" 
>     Identifier  "Mouse0" 
>     Driver      "mouse" 
>     Option      "Protocol"      "auto" 
>     Option      "Device"        "/dev/input/mouse0" 
> EndSection 
> 
> Section "Monitor" 
>     Identifier  "Monitor0" 
>     HorizSync   30 - 70 
>     VertRefresh 60 - 85 
> EndSection 
> 
> Section "Device" 
>     Identifier  "Card0" 
>     Driver      "i810" 
>     VendorName  "Intel Corporation" 
>     BoardName   "82810E DC-133 CGC [Chipset Graphics Controller]" 
>     BusID       "PCI:0:1:0" 
> EndSection 
> 
> Section "Screen" 
>     Identifier  "Screen0" 
>     Device      "Card0" 
>     Monitor     "Monitor0" 
>     DefaultDepth    16 
>     SubSection  "Display" 
>         Viewport    0 0 
>         Depth       1 
>     EndSubSection 
>     SubSection  "Display" 
>         Viewport    0 0 
>         Depth       4 
>     EndSubSection 
>     SubSection  "Display" 
>         Viewport    0 0 
>         Depth       8 
>     EndSubSection 
>     SubSection  "Display" 
>         Viewport    0 0 
>         Depth       15 
>     EndSubSection 
>     SubSection  "Display" 
>         Viewport    0 0 
>         Depth       16 
>     EndSubSection 
>     SubSection  "Display" 
>         Viewport    0 0 
>         Depth       24 
>     EndSubSection 
> EndSection 
> 
> Section "DRI" 
>     Mode        0666 
> EndSection
> 
> This configuration file starts X
> with a resolution of 1400 x 1050
> (above the maximum specified in
> the manual for the monitor). The
> log file:
...

It just picked the highest resolution things would allow because
you didn't specify a modes line like this:

      SubSection  "Display"
          Viewport    0 0
          Depth       16
          Modes       "1280x1024"
      EndSubSection

You get more colours if you specify
   DefaultDepth    24

Then you should have:

      SubSection  "Display"
          Viewport    0 0
          Depth       24
          Modes       "1280x1024"
      EndSubSection

Also, you don't need those "Viewport    0 0" lines.