phill@buster:~$ uname -a
Linux buster 4.14.148-rtai-amd64 #2 SMP PREEMPT Sat Nov 9 16:29:10 GMT 2019 x86_64 GNU/Linux
phill@buster:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
   1024x768       0.00* 
   800x600        0.00  
   640x480        0.00