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• Brand: Dell
• Model: Latitude D620

Hardware List

• OsdeInfo: DELL D620, Intel Core Duo, 512M RAM, 40G harddisk, DVD drive, WXGA 1280x800 TFT, Ethernet Broadcom(0000:09:02.0), Wifi (0000:09:04.0)

• LyndaMetref: Dell Latitude D620, Nvidia Quadro NVS 110M, WSXGA+ 1440x900TFT, Bluetooth, DVD+-RW Sony,1024M RAM, HD 200G

• Canglan: DELL D620, Intel Core 2 Duo T7200, 1GB RAM, nVidia Quadro NVS 110M, WSXGA+ 1440x900, 100G 7200rpm HDD, Wifi, Bluetooth, Fingerprint reader

Support of hardware

Dual Monitor and Dock Station Display

Please find the information regarding TwinView at http://ubuntuforums.org/showthread.php?t=221174 Please note that this method is only for nVidia cards.

ACPI Suspend and Hibernate

Both Suspend and Hibernate work reliably with some changes to /etc/default/acpi-support. Here are the steps, tested and working on both Dapper and Edgy.

1. First, restore the default /etc/default/acpi-support by running sudo apt-get --reinstall install acpi-support.

2. Open /etc/default/acpi-support and make the following changes:

   1. MODULES="ipw3945" (reloading this module makes NetworkManager behave after resume)

   2. POST_VIDEO=false

   3. SAVE_VIDEO_PCI_STATE=true

   4. HIBERNATE_MODE=platform

   5. Save your changes.

3. Open boot/grub/menu.lst and look for the line that starts with # defoptions=quiet splash

   1. Do not uncomment this line! Leave it commented.

   2. If you see acpi_sleep=s3_bios, or any acpi_sleep=blah option on the commented defoptions line, remove it.

   3. If you haven't already done so, add resume=/dev/hdaX to that commented defoptions line, where /dev/hdaX is your swap partition.

   4. Again, do not uncomment this line! It should look something like # defoptions=quiet splash vga=791 resume=/dev/hda3 when you're done.

   5. Save your changes.

   6. Run sudo update-grub. Don't forget this.

4. Do a full reboot of your machine. Log in to your desktop and then suspend the machine. If there are problems with coming back from suspend the first time, ignore them, reboot, and try again. Second time is the charm and you should have no further problems.

Built-in Front Panel Microphone

Most Dell Latitude D620s have both a microphone jack and a built-in microphone. If you have the Intel High Definition Audio chipset, ALSA sometimes does not detect the built-in mic by default.

To see if this is the case, open your Volume Control, click Edit->Preferences, check the Input Source, Capture, and Capture Mux options, then click Close. Next, click the Options tab and look at the contents of the Input Source dropdown. If there is no item named "Front Mic", ALSA has missed your device and will never use your mic jack!

To fix this, add the line...

• options snd-hda-intel model=ref

...to the end of the file /etc/modprobe.d/alsa-base, then reboot your machine. "Front Mic" should now be an available input source.

ALPS GlidePoint Touchpad

Some (if not most) D620s come with an ALPS Glidepoint touchpad. This touchpad uses the "synaptic" xorg input driver, but has slower default acceleration settings than Synaptics-branded touchpads.

To see if you have an ALPS Glidepoint touchpad, run...

• cat /proc/bus/input/devices | grep ALPS

...and watch for output. If you see something like "N: Name="AlpsPS/2 ALPS GlidePoint"", you probably want to make your touchpad a bit faster.

To do this, run sudo gedit /etc/X11/xorg.conf. Find the InputDevice section containing a reference to the synaptics driver, and add the options as demonstrated below:

Section "InputDevice"
   Identifier   "Synaptics Touchpad"   # Don't change this from whatever value you have set already.
   Driver       "synaptics"
   Option       "SendCoreEvents"        "true"
   Option       "Device"                "/dev/psaux"
   Option       "Protocol"              "auto-dev"

   Option       "LeftEdge"              "130"
   Option       "RightEdge"             "840"
   Option       "TopEdge"               "130"
   Option       "BottomEdge"            "640"
   Option       "FingerLow"             "14"
   Option       "FingerHigh"            "15"
   Option       "MaxTapTime"            "180"
   Option       "MaxTapMove"            "110"
   Option       "ClickTime"             "0"
   Option       "MaxDoubleTapTime"      "100"
   Option       "EmulateMidButtonTime"  "75"
   Option       "VertScrollDelta"       "20"
   Option       "HorizScrollDelta"      "20"
   Option       "MinSpeed"              "0.60"
   Option       "MaxSpeed"              "1.10"
   Option       "AccelFactor"           "0.030"
   Option       "EdgeMotionMinSpeed"    "200"
   Option       "EdgeMotionMaxSpeed"    "200
   Option       "UpDownScrolling"       "1"
   Option       "CircularScrolling"     "1"
   Option       "CircScrollDelta"       "0.1"
   Option       "CircScrollTrigger"     "2"
   Option       "SHMConfig"             "true"
   Option       "Emulate3Buttons"       "on"
EndSection

Save the file and close your editor.

Warning: Don't change the Identifier value of your touchpad device in xorg.conf unless you know what you're doing! Failing to change it properly could cause X to crash at startup, leaving you with no graphical environment.

Finally, log out. At the login screen, press CTRL-ALT-BACKSPACE. Your new touchpad settings should now be in effect.

Notes

LyndaMetref 2006-08-05 (Dapper):

• Graphics: Needs installation of nvidia-glx-drivers package to have working 3D accel.
• Wireless: Could not connect to a wep network
• lspci: 0000:00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 03) 0000:00:01.0 PCI bridge: Intel Corporation Mobile PCI Express Graphics Port (rev 03) 0000:00:1b.0 0403: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01) 0000:00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01) 0000:00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 01) 0000:00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 01) 0000:00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 01) 0000:00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 01) 0000:00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 01) 0000:00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 01) 0000:00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01) 0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1) 0000:00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01) 0000:00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controllers cc=IDE (rev 01) 0000:00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01) 0000:01:00.0 VGA compatible controller: nVidia Corporation: Unknown device 01d7 (rev a1)

  0000:03:01.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus Controller (rev 40)

  0000:09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5752 Gigabit Ethernet PCI Express (rev 02) 0000:0c:00.0 Network controller: Intel Corporation: Unknown device 4222 (rev 02)