HP Registry Edits

From pocketnow.com

Contents 1 Power 2 BlueTooth Audio Quality

Registry edits that are known to work on HP devices

Power

• Increase battery life by up to double
  • Go to HKEY_LOCAL_MACHINE\Comm\L2TP1\Parms
    • add a new DWORD value of DisablePowerManagement with a value of 0
  • and HKEY_LOCAL_MACHINE\Comm\PPTP1\Parms
    • add a new DWORD value of DisablePowerManagement with a value of 0
  • Original Thread

• Increase battery life (amount unknown)
  • HKEY_LOCAL_MACHINE\Comm\SDIO86861\Parms\PowerMode
  • This is the WiFi radio power setting. By default it is set to "0" in the stock ROM. Based on linux forum discussions on NDIS-wrapper (what turned up when I googled), it seems that:
    • "0" = Maximum Performance
    • "1" = Maximum Power Savings
    • "2" = Balanced
  • Original Thread

BlueTooth Audio Quality

Sometimes the audio quality of the connected bluetooth headset is very poor (lots of static), this can be attributed too the channel used by the MS bluetooth stack on the 910. It can be manually modified to use a different channel for improved clarity.

• Go to HKEY_LOCAL_MACHINE\Software\Microsoft\Bluetooth\Device\[device id]\Services\[Services ID]
  • Modify the channel value. Default is 0, I find that 1 works well.

Note: Determining the device ID is simply a matter of looking in the device ID level at the value of the name sting. Determining the services ID is the same as figuring out the device id. Additionally some blue tooth devices have more then one service, so check them all. My Jabra BT8040 headset supports Wireless Stereo, and Hands Free, so the channel needs to be modified in both services ids.