License issues

Virginia Tech provides a license server for Math Department faculty/grad student/staff to use Matlab. You must be on campus using either a wired or eduroam wireless connection or be using the Virginia Tech VPN to access this license server.
Specifically the VT Open WiFi wireless network does not have access.

High DPI screens on Linux

From Matlab KB

MATLAB supports High DPI screens on Linux starting from R2017b.
Tuning a high-DPI Linux system requires two steps:

The MATLAB scale factor affects MATLAB desktop and the size/position of windows. The system DPI determines the scale and font size of axes and labels.

The two tuning steps are described below:

STEP 1: To set the MATLAB scale factor, please execute the following commands in the MATLAB Command Window:

>> s = settings;
>> s.matlab.desktop.DisplayScaleFactor
>> s.matlab.desktop.DisplayScaleFactor.PersonalValue = 1.5

Here the scale factor has been set to 1.5.

STEP 2: To calibrate the system's DPI to match the scale factor, please use the following terminal commands:
% xdpyinfo | grep resolution
  resolution:    96x96 dots per inch
% xrandr --dpi 144

The DPI value chosen should be the resolution found with "xdpyinfo" multiplied by the MATLAB scale factor that was set. In the example, 96 × 1.5 = 144.
MATLAB must be restarted after Step 2.