Enable Keyboard Your Dell Latitude may be configured to ignore keyboard input whilst in sleep mode. To rectify this to make the laptop keyboard responsive, click on the "Start" menu and type "Device Manager" inside search box. Double-click the "Device Manager" icon inside the serp's. Click the "Keywords" tab and choose your keyboard from the list. Access the "Power Settings" options by clicking the "Change Settings" button. Be sure that the check box is ticked for "Allow this revolutionary product to wake the pc" after which it click "OK." Enable Mouse You are able to configure your Dell Latitude to take mouse input while the laptop is within sleep mode. Open the "Device Manager" panel as previously directed; but this time around, select your mouse through the "Mice and also other Pointing Devices" tab. Click on the "Change Settings" button and make sure the check box is ticked for "Allow this product to wake the pc." Click the "OK" button. BIOS Settings A setting in your BIOS could possibly be causing your Dell Latitude to stay in sleep mode. Access the BIOS setup menu by restarting your personal computer and pressing the "F2" key though it may be booting. Read through various BIOS pages for settings that pertain to sleep or hibernation mode. Review the manual forwarded to your laptop for help in locating and configuring these settings. System Restore A major system error might have occurred in your Latitude, preventing internet connected computers from waking away from sleep mode. You could be competent to fix this utilizing the System Restore choice restore the operating system with an earlier state. Open the "Start" menu and type "System Restore." Double-click on the icon that appears within the serp's and keep to the on-screen prompts to send back your laptop with a functional state.