Ubuntu – Monitor resolution messed up, monitor is unknown

displayintel graphicsresolutionxorg

Is there anyway to reset my monitor? My moitor is using the xorg.conf file. I use 10.04, without any Graphics Card. My monitor is an Acer X193W, with a native resolution of 1440×900.

This is my xorg.conf file:

Section "Screen"
    Identifier  "Configured Screen Device"
    Device  "Configured Video Device"
    Monitor "Test"
    DefaultDepth 16
    SubSection "Display"
        Depth 16
        Modes   "1440x900_60.00"

#Section "Device"
#   Identifier  "Configured Video Device"
#   HorizSync 
#   VertRefresh

I still cant view the native resolution, even when defined in the xorg file. An way I can revert to the default, or delete some files, to make the system detect the monitor again?

My last resort is the cvt method, and adding it to the xrandr file.

EDIT: I use Intel Drivers. My /proc/fb contains

enter image description here

Best Answer

The monitor reports its dimensions using EDID. Most probably the monitor does not report correctly the EDID information. In addition, newer X.Org is strict about EDID information.

So, how to figure out if this is an EDID issue;

  1. Install the read-edid package with sudo apt-get install read-edid
  2. Get the EDID information with sudo get-edid | parse-edid
  3. Finally, post the information here (use pastebin).