[NTLUG:Discuss] Wallpaper / Desktop Background spanning multiple monitors

[David Simmons]

Guys/Gals,

I sent my original frustration with current X setups and nvidia drivers
awhile back...and I was hoping that the industry would update/correct since
then (to no avail).

So, my question is "Does there still exist a problem with the nvidia drivers
regarding desktop background spanning on multiple monitors"
  or
"do I have something wrong with my configuration"?

Background:  I've been running Linux for quite awhile as my workstation OS
of choice.  When Windows guys would come over, I'd always like showing off
that in Linux, my background image would span (1/2 on one monitor and the
other, different 1/2 on another monitor) instead of being like WinXP in that
the backgrounds have to be the same (so on a dual-headed setup - you would
have two monitors each with the same background).  In the last 6 months to a
year, my OS of choice (Linux Mint) which used to span correctly with my
NVIDIA cards has stopped doing that...and I'm back to a WinXP style mirror
images rather than spanning.

HELP!?

Hardware:  single nvidia GT9800GT (with two DVI outputs to two monitors)
Software:  OS LInuxMint 9 Kernel 2.6.32-21-generic (x86_64), GNOME 2.30.2,
NVIDIA Driver 256.53 (latest)

xorg.conf:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 256.53  (buildmeister at builder97.nvidia.com)  Fri
Aug 27 20:55:22 PDT 2010

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 256.35  (buildmeister at builder97.nvidia.com)  Wed
Jun 16 19:14:45 PDT 2010

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "ServerFlags"
    Option         "Xinerama" "True"
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      "ACI ASUS VW266H"
    HorizSync       30.0 - 85.0
    VertRefresh     50.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9800 GT"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "DFP-1"
    Option         "metamodes" "DFP-0: 1920x1200 +1920+0, DFP-1: 1920x1200
+0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection


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Those with sight believe what's believable. Those with vision know what's
unbelievable.