[wheemer]

For the boosted shader performance (Lanczos3 Optimized and Spline36 Optimized) the mesa environment variable needs to be set to e.g. 4.5 or lower (at least 4.0) to use this code path: 

Code:

export MESA_GL_VERSION_OVERRIDE=4.5

On LE that should go (on supported devices) into the systemd startup script 

 I'm curious about this as I would like to try to see if it has any affect on my horizontal tearing issue.

Might you be able to explain further how to add this to my test box? I tried to figure it out but didn't get far.

Thanks