How to add new monitor

I'm not sure what exactly you need. Do you want to be able to change the frequency without having to use sudo, or being able to change it with it?

In the latter case, all you need to do is this:

1. open a terminal
2. type "sudo gedit /etc/X11/xorg.conf" (without the quotation marks, of course)
3. Find the section that says "Section "Monitor""
4. Find the line with "Horizsync" and change the value to yours, i.e. make it look like this:

    Horizsync 30-132

5. Find the line with "Vertrefresh" (it should be right below the one with "Horizsync") and change the value to yours:

    Vertrefresh 50-200

6. Save the file
7. Restart X-Server (Ctrl+Alt+Backspace) or simply reboot (probably safer)

And voila! you have your new monitor set up! Hope this helps.

You also might want to set up resolutions you wish to have available. This is done by editing the section "Screen", specifically by adding or removing resolutions to the line labeled "mode" in subsections "Display". For your reference, I'm posting the relevant sections of my /etc/X11/xorg.conf file:

Section "Monitor"
        Identifier "ADI P750"
        Option "DPMS"
        Horizsync 30-97
        Vertrefresh 50-150
EndSection

Section "Screen"
        Identifier "Default Screen"
        Device "nVidia Corporation NV40 [GeForce 6800]"
        Monitor "ADI P750"
        Defaultdepth 24
        SubSection "Display"
                Depth 1
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth 4
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth 8
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth 15
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth 16
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
        SubSection "Display"
                Depth 24
                Modes "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

Guys, I know how to edit xorg.conf, but for what displayconfig-gtk then?

I asked how to import new model of monitor into displayconfig-gtk list, not to edit xorg.conf by hand.

> It would be great if user can change Sync Frequency himself.

means that I would like to have an option to specify custom Sync Frequency in the displayocnfig-gtk.

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

My question is still not answered. The program has button 'Add' (import from .inf file). I suppose the help message was just recently added as I don't remember it the first time I used the program. So, how do I generate this .inf file then, which will add my Monitor into the displayconfig-gtk database?

You don't. An .inf file is a "windows driver" file for your monitor (it's pure text by the way). You can get this file either from your windows installation, your monitor CD or your monitor manufacturer's website. Just get the appropriate driver, then add via the "add" button.

Shkodran,

You aren't understanding the question. This question is still unanswered, and I need to know the answer too. Several questions and bugs regarding this issue have been posted and ignored or closed, but the issue is the same.

How does one submit to the project the information for monitors that need adding to the list of monitors supported in displayconfig? I don't care if it's submitting a .inf file, writing code for the app itself, or praying to the Ubuntu gods on bended knee, I just need to know how, and other people do too.

My company is a manufacturer of Ubuntu systems. The systems I ship should "just work". Displayconfig-gtk should include the largest possible set of monitor configurations so that customers can configure their monitors, especially the monitors I sell.

It does no good to tell me how to edit xorg.conf or how to import a driver from Windows. I know how to get a monitor working. That's not the question asked. The question asked is:

"HOW DOES SOMEONE ADD A MONITOR TO THE LIST OF SUPPORTED MONITORS IN DISPLAYCONFIG-GTK? "

This should also be documented in the package.

actually, I would like to know how to do that as well ...

the monitors database file is from the package guidance-backends

dpkg -L guidance-backends

/usr/share/apps/guidance/MonitorsDB

you must add monitors there