E.D.K The Tech

Category: Troubleshooting

  • Surface Book Keyboard: unknown USB device (device descriptor request failed)

    Error

    Unknown USB device (device descriptor request failed).

    Description

    In Bluetooth & devices > Devices in the Settings interface, under the Input section, the device with the keyboard icon says, “unknown USB device (device descriptor request failed)”.

    Solution

    • Expand the panel for the keyboard device.
    • Click the Remove this device link.
    • The operating system will try to reinstall the device with the proper driver. Warning: This may take up to a minute.

  • WordPress error: Unable to determine if Ghostscript is installed

    Description

    WordPress Site Health showing “Ghostscript version: Unable to determine if Ghostscript is installed”

    Solutions

    1. From my research, Ghostscript require the PHP function exec(). To fix this problem,
      1. Edit your php.ini file,
      2. Find the disable_functions directive,
      3. Remove the exec function from the list,
      4. Save the edited php.ini configuration.
    2. Alternatively, if you have Imagick installed, it can be configured to support Ghostscript.

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