If your laptop's monitor is too dark, you need to turn up the brightness. If your Lenovo monitor is too bright, you need to turn down the brightness. You can change the brightness level using the keyboard on your Lenovo laptop.nstructions. Press and hold the Fn key. Press the up arrow on your keyboard to increase the brightness. Press the down arrow on your keyboard to decrease the brightness. Check and see if your laptop's power supply is running low.
ASD file is a Microsoft Word AutoRecovery File. Microsoft Word is a word processor developed by Microsoft.
File descriptor. In Unix and related computer operating systems, a file descriptor (FD, less frequently fildes) is an abstract indicator (handle) used to access a file or other input/output resource, such as a pipe or network socket. File descriptors form part of the POSIX application programming interface.