The problem is that Optimus (Nvidia's hybrid driver technology) requires
modeset=1 to use it properly so there are millions of laptop users who will
have a problem with this :)
https://devtalk.nvidia.com/default/topic/957814/linux/prime-and-prime-synchronization/

Plus it works fine with lightdm.


On 26 July 2017 at 13:58, Daniel van Vugt <daniel.van.v...@canonical.com>
wrote:

> I suggest you should just avoid Wayland if you want multi-GPU to work
> properly. That means using modeset=0.
>
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> https://bugs.launchpad.net/bugs/1706474
>
> Title:
>   gdm3 nvidia modeset=1 is broken, external screens don't work
>
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-- 
Tim Richardson

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https://bugs.launchpad.net/bugs/1706474

Title:
  gdm3 nvidia modeset=1 is broken, external screens don't work

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