LinuxQuestions.org - Failure to recognize 1920 x 1200 resolution in nvidia twinview

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Failure to recognize 1920 x 1200 resolution in nvidia twinview

Trying to enable 1920 x 1200 panning for a 1680 x 1050 monitor. I've been trying to modify a xorg.conf file in my Mint 13 Cinnamon following a how-to and I completely lost my Desktop. Took over a day to recover from the command line. Would rather not repeat that experience. I made a /etc/X11/xorg.conf file to work with the proprietary nvidia driver set up through Nvidia Xserver settings. However in the Xserver settings program using the "advanced" feature I couldn't get the 1920 x 1200 panning setting for the smaller monitor to save without problems. Hence trying to modify my xorg.conf file through vim to increase the resolution of the small monitor.

In the past in pre-unity ubuntu and also with Mint 12 I have successfully had both the same 28" 1920 x 1200 and 22" 1680 x 1050 monitors displaying the same image in Twinview with nvidia. Unfortunately I didn't think to make a copy of my xorg.conf file for future reference. I did however take screenshots of the successful Nvidia Xserver settings back then as shown below:

Attachment 11413

Attachment 11414

The above settings did work fine on my previous systems. When I try to enter them now though, I get problems saving the settings. I'm presently running my system on just the large monitor and without a xorg.conf file. Any ideas on how to modify the new file after I make it? Many thanks.

Fixed by Mint 14.1

Tried using a new xorg.conf and editing again -- no use. Decided to reinstall Mint as it seemed there was something wonky with the nvidia/xorg after my attempts to fix. Removed any hidden mint 13 nvidia-related files in my /home dir and installed linuxmint-14.1-cinnamon using all of my own-selected partitions and keeping my /home and /backup partitions (making sure not to reformat those). Had the whole process done, up and running and updated in probably less than an hour.

Installed the nvidia-settings program via synaptic. Took over half an hour to find the proprietary drivers feature though to access the nvidia drivers. They're now located in synaptic repository section in the last tab under the heading "additional drivers". However I also found an open source xorg driver there. So I tried that one first. Shut down, connected the 28" monitor, restarted and wow. Both monitors seemed to be working plug and play with no modifications needed. Identical full screen image on both. Well Done Linux Mint 14.1 Cinnamon team!!! I need that second monitor directly in front of my bike for my indoor cycling Computrainer program to monitor my workouts.

Rats! Thought I had it yesterday but today I realized that the open source driver (which won't work with nvidia xserver settings) will only mirror the smaller monitor and I cannot then get the full 1920x1200 resolution on the larger screen. So today I started in synaptic by installing nvidia-settings, nvidia current and the required other progs, which let me use the basic nvidia proprietary driver and use the nvidia settings prog. Tried getting both monitors working but either I get a 1680x1050 image superimposed on my 1920x1200 monitor image or I get the full 1680x1050 on the smaller monitor and don't see the menu area of the larger monitor. Messed up the nvidia-installed xorg.conf enough, that I deleted it. I then dropped into console, stopped mdm services, did a "sudo service mdm stop" and then created a new xorg.conf.new file in my /home dir with "sudo X -configure". Copied that to my /etc/X11 dir with a xorg.conf name and tried modifying that file with nvidia settings. Lost my cinnamon desktop twice and on rebooting system dropped into mate with no shutdown button on panel. I've been shutting down with "sudo shutdown -h now" in terminal after making each change to xorg.

Have just disabled the 22" monitor, shut it off and restarted with just the 28" monitor to get a workable monitor image. At present I have a good cinnamon desktop. My present xorg.conf file with that setup is below:

Code:

# nvidia-settings: X configuration file generated by nvidia-settings

# nvidia-settings:  version 304.51  (buildd@batsu)  Fri Oct 12 12:53:54 UTC 2012



Section "ServerLayout"

    Identifier    "Layout0"

    Screen      0  "Screen0" 0 0

    InputDevice    "Keyboard0" "CoreKeyboard"

    InputDevice    "Mouse0" "CorePointer"

    Option        "Xinerama" "0"

EndSection



Section "Files"

EndSection



Section "InputDevice"

    # generated from default

    Identifier    "Mouse0"

    Driver        "mouse"

    Option        "Protocol" "auto"

    Option        "Device" "/dev/psaux"

    Option        "Emulate3Buttons" "no"

    Option        "ZAxisMapping" "4 5"

EndSection



Section "InputDevice"

    # generated from default

    Identifier    "Keyboard0"

    Driver        "kbd"

EndSection



Section "Monitor"

    # HorizSync source: edid, VertRefresh source: edid

    Identifier    "Monitor0"

    VendorName    "Unknown"

    ModelName      "HSP HSG1075"

    HorizSync      31.0 - 75.0

    VertRefresh    59.0 - 61.0

    Option        "DPMS"

EndSection



Section "Device"

    Identifier    "Device0"

    Driver        "nvidia"

    VendorName    "NVIDIA Corporation"

    BoardName      "GeForce GT 630"

EndSection



Section "Screen"

    Identifier    "Screen0"

    Device        "Device0"

    Monitor        "Monitor0"

    DefaultDepth    24

    Option        "Stereo" "0"

    Option        "nvidiaXineramaInfoOrder" "CRT-1"

    Option        "metamodes" "CRT: 1920x1200 +0+0; CRT: 1920x1200 +0+0; CRT: 1920x1200 +0+0; CRT: 1920x1200 +0+0; CRT: 1920x1200_60 +0+0; CRT: 1920x1200_60_0 +0+0; CRT: 1680x1050 +0+0; CRT: 1680x1050_60 +0+0; CRT: 1440x900 +0+0; CRT: 1440x900_60 +0+0; CRT: 1280x1024 +0+0; CRT: 1280x1024_60 +0+0; CRT: 1024x768 +0+0; CRT: 1024x768_60 +0+0; CRT: 800x600 +0+0; CRT: 800x600_60 +0+0; CRT: 640x480 +0+0; CRT: 640x480_60 +0+0; CRT: nvidia-auto-select +0+0; CRT: nvidia-auto-select +0+0; CRT: nvidia-auto-select +0+0"

    SubSection    "Display"

        Depth      24

    EndSubSection

EndSection

I've no idea where to go from here.

Got twinview working but the only way I could get a full image on both screens was to reduce the resolution of the larger screen to that of the smaller screen. Large screen didn't look good at only 1680x1050. So I've rearranged the room, done away with the second monitor for the bike trainer and I'm back to only the large monitor for everything using 1920x1200:scratch: