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Graphic Drivers on Ubuntu

How to view which graphic drivers are in use in my Linux (Ubuntu) system .

>jockey-text -help 

 
Options:
  -h, --help            show this help message and exit
  -c, --check           Check for newly used or usable drivers and notify the
                        user.
  -u, --update-db       Query driver databases for newly available or updated
                        drivers.
  -l, --list            List available drivers and their status.
  -a, --auto-install    Enable drivers that can be automatically installed.
  --hardware-ids        List hardware identifiers from this system.
  -e DRIVER, --enable=DRIVER
                        Enable a driver
  -d DRIVER, --disable=DRIVER
                        Disable a driver
  --confirm             Ask for confirmation for --enable/--disable
  -C, --check-composite
                        Check if there is a graphics driver available that
                        supports composite and offer to enable it
  -m free|nonfree|any, --mode=free|nonfree|any
                        Only manage free/nonfree drivers. By default, all
                        available drivers with any license are presented.
  --dbus-server         Run as session D-BUS server.
  --no-dbus             Do not use D-BUS for communicating with the backend.
                        Needs root privileges.
  -k KERNEL, --kernel=KERNEL
                        Use a different target kernel version than the
                        currently running one. This is only relevant with
                        --no-dbus.
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In the Xubuntu menu click on Settings Manager. This will open the Settings window.
enter image description here
In the Settings window under the Hardware heading, click on the Additional Drivers icon. This will open the Software & Updates window and show the Additional Drivers tab.
enter image description here
If you have a graphics card driver installed, there will be a black dot appearing to the left of it, showing that it is installed. The recommended graphics card driver, if there is one in the list, is the one that has [Recommended] appearing after it. You can install the Recommended driver by selecting the Recommended driver from the list of drivers, clicking the Activate button in the lower right corner of Additional Drivers, and then reboot to enable the graphics card driver.
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