modesetting: Lie less in the man page
X.Org Server 21.1 Released With Variable Rate Refresh In Modesetting Driver, Other Work
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Originally posted by middy View Posti have a freesync monitor but i have freesync disabled in it because freesync doesn't work on wayland at the moment (at least on gnome) but i wonder if it works inside xwayland. isn't the modesetting driver what's used with wayland? as far as i'm aware, there isn't a "amd wayland" driver like there is for userspace with xorg.
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Originally posted by middy View Posti have a freesync monitor but i have freesync disabled in it because freesync doesn't work on wayland at the moment (at least on gnome) but i wonder if it works inside xwayland.
isn't the modesetting driver what's used with wayland? as far as i'm aware, there isn't a "amd wayland" driver like there is for userspace with xorg.
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Originally posted by Azpegath View PostAs a Radeon owner, why would I run modesetting driver instead of radeonsi?
It seems Michael sometimes runs this driver in tests but I've never understood why.
Originally posted by aufkrawall View PostIt's modesetting instead of xf86-video-amdgpu. But yeah. I guess xf86-video-amdgpu is too boring and you need some bugs of modesetting DDX to spice things up.
Originally posted by middy View Postisn't the modesetting driver what's used with wayland? as far as i'm aware, there isn't a "amd wayland" driver like there is for userspace with xorg.
So modesetting driver and way wayland compositors do thing have the vendor particular code outside the x.org X11 server or the wayland compositor. So vendor particular code under this model is in the opengl/vulkan... libraries or in the KMS/DRI kernel mode drivers. So unified driver solution between wayland and x.org X11 server. This was also a plan to remove drivers from hooking into X11 server core as well.
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Originally posted by wooptoo View Post
Really that description part of the picture. What was in the man page corrected when the modesetting driver was first made was fact correct. Yes modesetting driver use to support 8bpp and use to be not accelerated at all but for over 10 years now that has not been the case. Yes this is the classic problem of documentation not matching the software.
Yes there are most likely more bits in the modesetting man page that are old and no longer match the software. X.org X11 server does not have a person who job it is to make sure the documentation is somewhat current.
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Originally posted by Azpegath View PostAs a Radeon owner, why would I run modesetting driver instead of radeonsi?
It seems Michael sometimes runs this driver in tests but I've never understood why.
More recently AMD has supported xf86-video-amdgpu a bit better and actually has driver specific functionality included, so in most cases you are probably better off using it.
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