I am trying to add the experimental drivers and keep getting an error on apt-get updateFollowing exmaple on http://forums.debian.net/viewtopic.php?t=10812deb http://ftp.de.debian.org/debian experimental main contrib non-freedeb-src http://ftp.de.debian.org/debian experimental main contrib non-free
GPG error: http://debian.oregonstate.edu experimental InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA

> Date: Thu, 28 Apr 2011 18:46:21 +0000
> From: <email address hidden>
> To: <email address hidden>
> Subject: [Bug 771915] Re: Problem with Duel Monitors and Ubuntu 11.04
> 
> Hello Chris
> 
> >From Xorg.0.log:
> [    28.540] (WW) NVIDIA: The Composite and Xinerama extensions are both enabled, which
> [    28.540] (WW) NVIDIA:     is an unsupported configuration.  The driver will continue
> [    28.540] (WW) NVIDIA:     to load, but may behave strangely.
> 
> Can you please remove the proprietary NVidia driver and install the
> Experimental version and report how it works?
> 
> Also I can see, in kern.log, many errors, can you please run in a terminal
> ubuntu-bug linux
> and in the summary paste:
> ACPI Error (psparse-0537): Method parse/execution failed
> Thanks
> Fabio
> 
> -- 
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/771915
> 
> Title:
>   Problem with Duel Monitors and Ubuntu 11.04
> 
> Status in Ubuntu:
>   Incomplete
> 
> Bug description:
>   When I start my computer with the monitors attached it starts ubuntu
>   and lets me log in but never renders the menus so all I have is the
>   desktop background picture on both monitors.  Below is the x
>   configuration file.
> 
>   # nvidia-settings: X configuration file generated by nvidia-settings
>   # nvidia-settings:  version 260.19.44  (<email address hidden>)  Sun Feb 27 22:59:44 PST 2011
> 
>   # nvidia-xconfig: X configuration file generated by nvidia-xconfig
>   # nvidia-xconfig:  version 260.19.44  (<email address hidden>)  Sun Feb 27 22:59:57 PST 2011
> 
>   Section "ServerLayout"
> 
>   # Removed Option "Xinerama" "0"
>       Identifier     "Layout0"
>       Screen      0  "Screen0" 0 0
>       Screen      1  "Screen1" RightOf "Screen0"
>   # commented out by update-manager, HAL is now used and auto-detects devices
>   # Keyboard settings are now read from /etc/default/console-setup
>   #    InputDevice    "Keyboard0" "CoreKeyboard"
>   # commented out by update-manager, HAL is now used and auto-detects devices
>   # Keyboard settings are now read from /etc/default/console-setup
>   #    InputDevice    "Mouse0" "CorePointer"
>       Option         "Xinerama" "1"
>   EndSection
> 
>   Section "Files"
>   EndSection
> 
>   # commented out by update-manager, HAL is now used and auto-detects devices
>   # Keyboard settings are now read from /etc/default/console-setup
>   #Section "InputDevice"
>   #
>   #    # generated from default
>   #    Identifier     "Mouse0"
>   #    Driver         "mouse"
>   #    Option         "Protocol" "auto"
>   #    Option         "Device" "/dev/psaux"
>   #    Option         "Emulate3Buttons" "no"
>   #    Option         "ZAxisMapping" "4 5"
>   #EndSection
> 
>   # commented out by update-manager, HAL is now used and auto-detects devices
>   # Keyboard settings are now read from /etc/default/console-setup
>   #Section "InputDevice"
>   #
>   #    # generated from default
>   #    Identifier     "Keyboard0"
>   #    Driver         "kbd"
>   #EndSection
> 
>   Section "Monitor"
> 
>       # HorizSync source: edid, VertRefresh source: edid
>       Identifier     "Monitor0"
>       VendorName     "Unknown"
>       ModelName      "cPATH"
>       HorizSync       30.0 - 75.0
>       VertRefresh     60.0
>       Option         "DPMS"
>   EndSection
> 
>   Section "Monitor"
> 
>       # HorizSync source: edid, VertRefresh source: edid
>       Identifier     "Monitor1"
>       VendorName     "Unknown"
>       ModelName      "DELL P2411H"
>       HorizSync       30.0 - 83.0
>       VertRefresh     56.0 - 76.0
>       Option         "DPMS"
>   EndSection
> 
>   Section "Device"
>       Identifier     "Device0"
>       Driver         "nvidia"
>       VendorName     "NVIDIA Corporation"
>       BoardName      "NVS 3100M"
>       BusID          "PCI:1:0:0"
>       Screen          0
>   EndSection
> 
>   Section "Device"
>       Identifier     "Device1"
>       Driver         "nvidia"
>       VendorName     "NVIDIA Corporation"
>       BoardName      "NVS 3100M"
>       BusID          "PCI:1:0:0"
>       Screen          1
>   EndSection
> 
>   Section "Screen"
>       Identifier     "Screen0"
>       Device         "Device0"
>       Monitor        "Monitor0"
>       DefaultDepth    24
>       Option         "TwinView" "0"
>       Option         "metamodes" "DFP-3: nvidia-auto-select +0+0"
>       SubSection     "Display"
>           Depth       24
>       EndSubSection
>   EndSection
> 
>   Section "Screen"
>       Identifier     "Screen1"
>       Device         "Device1"
>       Monitor        "Monitor1"
>       DefaultDepth    24
>       Option         "TwinView" "0"
>       Option         "metamodes" "DFP-0: nvidia-auto-select +0+0"
>       SubSection     "Display"
>           Depth       24
>       EndSubSection
>   EndSection
> 
>   ProblemType: Bug
>   DistroRelease: Ubuntu 11.04
>   Package: gnome-terminal 2.32.1-0ubuntu3
>   ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
>   Uname: Linux 2.6.38-8-generic x86_64
>   NonfreeKernelModules: wl nvidia
>   Architecture: amd64
>   Date: Wed Apr 27 10:50:49 2011
>   ExecutablePath: /usr/bin/gnome-terminal
>   InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
>   ProcEnviron:
>    LANGUAGE=en_US:en
>    PATH=(custom, no user)
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   SourcePackage: gnome-terminal
>   UpgradeStatus: Upgraded to natty on 2011-04-27 (0 days ago)
>   XsessionErrors:
>    (<unknown>:1672): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.SectionsModel is in the past. Ignoring transaction.
>    (<unknown>:1672): dee-WARNING **: Transaction from com.canonical.Unity.ApplicationsPlace.GroupsModel is in the past. Ignoring transaction.
>    (unity-window-decorator:1785): Gdk-WARNING **: GdkWindow 0x2c00521 unexpectedly destroyed
> 
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