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Dual Monitor Xorg Configuration with different resolutions

Hi all,
I am not sure if this is the correct forum to post this topic (I was struggling between hardware and software). But since I do not think this was a problem with my hardware(monitor), I decided to post it here.

I have been tasked to set up 2 monitors on SUSE Linux Enterprise that are a clone of each other, but each displaying different resolutions. The primary display has a max resolution of 1024x768 while the secondary display has a max resolution of 800x600.

The problem comes when the secondary display shows a "cropped" version of the desktop. Is there anyway to show different resolutions on each display while maintaining the proper desktop look?

I have attached the relevant portion of my xorg.conf.

Thanks in advance.

Terry

Code:

Section "Monitor"

  Option      "CalcAlgorithm" "XServerPool"

  DisplaySize  304 228

  HorizSync    30-61

  Identifier  "Monitor[0]"

  Option      "DPMS"

  VertRefresh  43-75

  UseModes    "Modes[0]"

EndSection



Section "Monitor"

        DisplaySize        305 230

        HorizSync        30-49

        Identifier        "EXT"

        Option                "DPMS"

        Option                "PreferredMode" "800x600"

        VertRefresh        43-75

EndSection



Section "Modes"

  Identifier  "Modes[0]"

EndSection



Section "Screen"

  DefaultDepth 24

  SubSection "Display"

    Depth      24

    Modes      "1024x768" "800x600" "768x576" "640x480" 

    Virtual    2048 2048

  EndSubSection

  Device      "Device[0]"

  Identifier  "Screen[0]"

  Monitor      "Monitor[0]"

EndSection



Section "Screen"

  DefaultDepth 24

  SubSection "Display"

    Depth      24

    Modes      "800x600" "768x576" "640x480" 

    Virtual    2048 2048

  EndSubSection

  Device      "Device[0]"

  Identifier  "Screen[1]"

  Monitor      "EXT"

EndSection



Section "Device"

  BoardName    "915 GM"

  Driver      "intel"

  Identifier  "Device[0]"

  BusID              "PCI:0:2:0"

  VendorName  "Intel"

  Option      "TwinView" "true"

  Option      "SecondMonitorHorizSync" "30.0-61.0"

  Option      "SecondMonitorVertRefresh" "50-75"

  Option      "MetaModes" "1024x768, 800x600"

  Option      "TwinViewOrientation" "Clone"

EndSection



Section "ServerLayout"

  Identifier  "Layout[all]"

  InputDevice  "Keyboard[0]" "CoreKeyboard"

  InputDevice  "Mouse[1]" "CorePointer"

  #Option      "Clone" "off"

  #Option      "Xinerama" "off"

  Screen        "Screen[0]"

EndSection

Hi. Anyone able to help? Or am I not clear in my question?

I was going to wait and see what others said but I guess I'll take a crack at it. Before you do anything be sure to backup your xorg.conf. Run all commands I specify as root user.

Code:

cp /etc/X11/xorg.conf /etc/X11/xorg.conf.bak

Do you know what graphics chipset you have? (nVidia/ATI/whatever) Sometimes the vendors provide utilities which greatly simplify the process of modifying the xorg.conf to take advantage of unique features of the vendors binary blob drivers.

I'll continue searching around but I haven't found any open source implementations of nVidia's TwinView. I'll post back as I find more material.

edit: never mind about the graphics chipset question. I figured it out from reading your xorg.conf

edit 2: xrandr looks like it will be able to possibly accomplish what you wish. I found an example of it in the gentoo wiki. I'll see if I can formulate a command which would modify display modes of individual monitors.

edit 3: I have found two links which are useful: one is from ubuntu and one is form nVidia.

Thanks for the reply. However, the links seem to deal with nvidia drivers only. We are using intel for our graphics in this case.

Also, in the appendix, it is stated that the TwinView feature is only available on nvidia chipsets.

How are you using TwinView to clone it then? I was under the impression that TwinView was an nVidia only thing.

Have you tried switching around the MetaModes? That in particular seems to deal with the resolution of the two monitors cloned.

Code:

Option "MetaModes" "800x600, 1024x768"

xrandr was written by Intel. I'll have to find some examples for how it's used.

I found this post on the topic. I am not sure if there is anything useful or helpful for you in it.

http://www.linuxquestions.org/questi...nvidia-774321/

Nope. I meant I read that TwinView is only available on nvidia cards. Anyway I did try to use TwinView on an intel card. Sad to say, the monitors still show the same resolution. And switching the modes didn't work as well.