[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  

You can enable the option by running the following commands:

Code:

wget -q http://ix.io/Dzp -O/storage/.config/system.d/kodi.service && systemctl daemon-reload && reboot

However as this is a non-standard and currently unsupported setting, if you have issues please start a new thread.

We're not sure how best to integrate this change (if at all) in LibreELEC, as it may not not be suitable for all hardware.  

 Well it is suitable for AMD graphics, it fixed all the problems I was having with tearing... Doesn't have any affect on Nvidia in my test machine. EDIT: I now realize it's because my Nvidia card is probably legacy.