[Wayland-bugs] [Bug 101681] How to find which DRI version is used by Wayland, and what is the method to change DRI version on Wayland?

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101681

            Bug ID: 101681
           Summary: How to find which DRI version is used by Wayland, and
                    what is the method to change DRI version on Wayland?
           Product: Wayland
           Version: 1.4.0
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: wayland
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: nobodyless at gmail.com

How to find which DRI version is used by/beneath Wayland, and what is the
method to change DRI version on Wayland (if any)?

Short description of the problem: We have GNOME using Wayland, which uses
DRIlib beneath protocol and compositor, and DRI connects to the DRM
(generic/transparent for various DRIs), which is wrapper around GFX kernel
drivers for the specific integrated GPUs and/or GPUs on the PCIe cards.

I assume Xorg server has both implementations for DRIs (DRI2 and DRI3) beneath
X11 protocol. If DRM hooks up GFX kernel driver which uses DRI2 I/F, it'll
connect to DRI2lib. If DRI3 I/F, DRM will hook to DRI3lib.

[1] How does this architecture work for Wayland? Does Wayland support both DRI2
and DRI3 (e,g. had both DRI2lib and DRI3lib APIs integrated within Wayland
server)?

[2] Could this be changes/enforced the same way as for Xorg server (in
/etc/X11/xorg.conf?

[3] Does this (what I wrote here) make any sense??? ;-)

Thank you,
_nobody_

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