Hi,
I have just made a fresh install of Ubuntu Mate, mostly looking forward to testing myself the Nvidia/Intel switch, with LightDM, so without reboot.
However, it doesn't work for me out of the box (MSI GS65 Hybrid GPU). Discrete card is always on.
Wanted to share that after installing this guy's script:
The switch works out of the box and pretty well. Even works automatically from the panel's switcher.
If anyone has other option or experiences please do share. I am researching on this. However, so far, MATE with LightDM is so far the best integration I have ever experienced (mostly because the script above integrates with the GUI switcher, and that GNOME implementations require full reboot instead).
Maybe his script could be made default? It uses bbswitch.
Best,
Saif