BIOS Settings - D620

[Hervé]

Here are BIOS settings that are known to work on D620 GMA950 + nVidia 110M under SL, Lion and ML (MLPF). These settings were tested and verified with BIOS A07 + A10.

Onboard Devices:
. Fast IR = COM2
. Integrated NIC = enabled
. Internel modem = enabled
. External USB ports = enabled
. Integrated USB ports = High Speed
. Parallel port = ECP
. Serial port = COM1
. PC Card = Enabled
Video:
. Ambient Light Sensor = Off
. Brightness = max
. Brightness (AC) = max
. LCD Panel Expansion = enabled
. Primary Video = Onboard Video
Security:
. Admin Password = not set
. System Password = not set (*** mandatory on GMA950 models or BSOD (=crash) on wake ***)
. Internal HDD PW = not set
. Password Change = Permitted
. Password Bypass = Reboot & Resume Bypass (mandatory on GMA models)
. Wireless Switch Change = Denied
. Wi-Fi Catcher Change = Denied
. CPU XD Support = Enabled
. TPM Security = Off or On
. TPM Activation = Deactivate or Activate
. Computrace® = Deactivate
Performance:
. Multi Core Support = Enabled
. HDD Acoustic Mode = Performance (or any other value)
. SpeedStep Enable = Enabled
Power Management:
. Auto On Mode = Off
. Auto On Time = xxxxxx
. USB Wake Support = Off (USB wake only operates when laptop is on mains and then causes Sleep/Instant Wake issues)
. Wake on LAN/WLAN = Off
. Serial ATA DIPM = Enabled
Docking:
. Undocking Method = Hot Undock
. PCI Slot Monitoring = Enabled Silent
. Universal Connect = Enabled
POST Behavior:
. Adapter Warnings = Enabled
. Fn Key Emulation = Scroll Lock
. Fast Boot = Minimal
. Virtualization = Enabled or Disabled (only required to run virtual machines)
. Keypad (Embedded) = Fn Key Only
. Mouse/TouchPad = Touchpad-PS/2
. Numlock LED = On
. USB Emulation = Enabled
Wireless:
. Internal Bluetooth = Enabled
. Internal Wi-Fi = Enabled (keep to Disabled if you have an Intel card, they're not supported and need to be replaced)
. Internal Cellular = Enabled
. Wireless Switch = All
. Wi-Fi Catcher = Enabled


The above settings are compatible with sleep/wake mode of operation and use of Wireless on/off switch. BT + Wifi services resume on wake + wireless switch re-activation (Wifi may require manual network re-selection after the latter).

 'System password' MUST be set on GMA models for wake from sleep to operate. Otherwise, laptop with crash systematically on wake. nVidia models are not affected by this problem.

 'USB Wake Support' MUST be set to Off on nVidia models or laptop will not go to sleep mode but immediately wake. A fix via DSDT patching currently under investigation.

[Hervé]

EDIT: Post updated following verification on D620 GMA950 with BIOS A07 + A10.

[Hervé]

EDIT 2: Post updated following thorough test with latest DSDT following Joe82's research and fixes. Display mirroring is now confirmed fully operational on the D620 GMA + USB Wake supported.