Execute the following command in a Terminal:
glxinfo | grep '^direct rendering:'
If in the result shows
Yes, then you have 3D acceleration, and hence OpenGL.
glxinfo is not installed in your system, then install it first by executing the following command on a Terminal:
sudo apt install mesa-utils
Here is the output of my terminal installing
mesa-utils and executing the command I told you before:
galoget@hackem:~$ sudo apt install mesa-utils
[sudo] password for galoget:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 31,9 kB of archives.
After this operation, 125 kB of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu artful/universe amd64 mesa-utils amd64 8.3.0-5 [31,9 kB]
Fetched 31,9 kB in 1s (24,2 kB/s)
Selecting previously unselected package mesa-utils.
(Reading database ... 161837 files and directories currently installed.)
Preparing to unpack .../mesa-utils_8.3.0-5_amd64.deb ...
Unpacking mesa-utils (8.3.0-5) ...
Processing triggers for man-db (184.108.40.206-2) ...
Setting up mesa-utils (8.3.0-5) ...
galoget@hackem:~$ glxinfo | grep '^direct rendering:'
direct rendering: Yes
Hope it helps.