Drise's questions

I'm looking for the memtest option on the 64-bit version of the Ubuntu 12.04 live CD, but the only options I have are "Try Ubuntu without installing", "Install Ubuntu", and "Check disc for defects". What am I missing?

Edit: This question is relevant for the current versions of Ubuntu (amd64 alias 64-bit, which work in UEFI mode). The boot menu option 'Test memory' is only available in BIOS mode.

I noticed that a check on a good password takes ~.5 seconds. However, if you give a password that is incorrect, it takes ~3 seconds to inform the user as such. Why is this?

I am running Ubuntu 11.04. I have an NVidia GeForce GTX 295 card installed with driver version 295.53 installed. I had struggled with this for a while a few weeks ago, and gave up. However, last week, I came into work, and noticed both monitors were working. I thought one of my tech buddies helped me out (we are a small company, and I just spoke with him today. He thought it was still not working) so I went on my merry way happy that I had dual monitor support. Unfortunately, I crashed (tried to compile a program while running a large virtual box) the computer yesterday, and when it came back up, I was back to a single monitor again. I had not changed any settings or files related to any software installed.

TL;DR: Dual monitor support started working out of the blue, and upon reboot, disappears.

Any thoughts on where to go?

A few notes:

I understand about duplicate questions. I have tried a number of solutions from a wide range of websites, including this one, but none of them seem to help, or be relevant to my situation.

My xorg.conf file is as follows (which I assume was the correct mix of settings):

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 295.53  ([email protected])  Sat May 12 00:34:20 PDT 2012

#Section "Monitor"
#Identifier     "Monitor2"
#VendorName     "Unknown"
#ModelName      "Unknown"
#HorizSync       28.0 - 33.0
#VertRefresh     43.0 - 72.0
#Option         "DPMS"
#EndSection
#Section "Device"
#Identifier     "Device0"
#Driver         "nvidia"
#VendorName     "NVIDIA Corporation"
#BoardName      "GeForce GTX 295"
#BusID          "PCI:4:0:0"
#EndSection
#Section "Screen"
    #Identifier     "Screen1"
    #Device         "Device1"
    #Monitor        "Monitor1"
    #DefaultDepth    24
    #Option         "TwinView" "True"
    #Option         "MetaModes" "nvidia-auto-select, nvidia-auto-select"
    #SubSection     "Display"
        #Depth       24
    #EndSubSection
#EndSection
#Section "Screen"
    #Identifier     "Screen2"
    #Device         "Device2"
    #Monitor        "Monitor2"
    #DefaultDepth    24
    #Option         "TwinView" "True"
    #Option         "MetaModes" "nvidia-auto-select, nvidia-auto-select"
    #SubSection     "Display"
        #Depth       24
    #EndSubSection
#EndSection

Section "ServerLayout"

#Screen      1  "Screen1" RightOf "Screen0"
#Screen      2  "Screen2" RightOf "Screen1"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
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"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Unknown"
    HorizSync       28.0 - 33.0
    VertRefresh     43.0 - 72.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 295"
    BusID          "PCI:5:0:0"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 295"
    BusID          "PCI:4:0:0"
EndSection

Section "Screen"

#Option         "TwinView" "True"
#Option         "MetaModes" "nvidia-auto-select, nvidia-auto-select"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "True"
    Option         "MetaModes" "nvidia-auto-select, nvidia-auto-select"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"

#Option         "TwinView" "True"
#Option         "MetaModes" "nvidia-auto-select, nvidia-auto-select"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "True"
    Option         "MetaModes" "nvidia-auto-select, nvidia-auto-select"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection