[dbolton]

What drivers are you using?

provide output of
DISPLAY=:0 glxinfo | grep -i version

Here's the output:

server glx version string: 1.4
client glx version string: 1.4
GLX version: 1.4
    Version: 19.0.8
    Max core profile version: 3.3
    Max compat profile version: 3.3
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.0
OpenGL core profile version string: 3.3 (Core Profile) Mesa 19.0.8
OpenGL core profile shading language version string: 3.30
OpenGL version string: 3.3 (Compatibility Profile) Mesa 19.0.8
OpenGL shading language version string: 3.30
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 19.0.8
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00