I've skimmed through that thread and pretty much agree with a summary [1] from another user.I wasn't aware of that limitation. Here's an older version of essentially the same thing: <https://forums.opensuse.org/showthread.php/541438-AMD-Intel-amp-NVidia-X-graphics-driver-primer>
My take away is "modesetting" module could be used as an alternative, if there is a problem with vendor supplied one.Thus, for most installations (non-ancient, non-bleeding edge), competent X operation is possible without having any proprietary Xorg driver or GPU-specific DDX installed.
I still won't be suggesting to use "nouveau", at least not to users who struggle to get their system to work, and not before pointing out its limitations.NVidia's own software is thus needed only by those who need some specific feature only it provides.
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