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BIOS Settings - D620

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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).

:excl: '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.

:excl: '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.

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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.

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