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Description of problem:

With the release of NVIDIA proprietary driver series 495, the NVIDIA driver now supports GBM buffers.

If a customer install that version, the current version of Xwayland will fail to map any window without the required fixes for Xwayland:

https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/766

Version-Release number of selected component (if applicable):

xorg-x11-server-Xwayland-21.1

How reproducible:

Always

Steps to Reproduce:
1. Install the NVIDIA proprietary driver series 495

Actual results:

No X11 window can show up on screen.

Expected results:

X11 windows show up on screen.

Additional info:

This will allow Xwayland to be future proof, compatible with the newer NVIDIA driver even though installing the NVIDIA proprietary driver series 495 has additional dependencies (egl-wayland-1.1.9, which requires libglvnd 1.3.4 at least, etc.).

This should be satisfied with upgrading to v21.1.3, which has that MR incorporated into it. It was released earlier this week: https://lists.x.org/archives/xorg/2021-November/060808.html

With xorg-x11-server-Xwayland-21.1.3-1.el9 and nvidia driver 495.44 wayland works using EGLStream backend. Waiting to best also GBM buffer support once it is ready before setting verified.

Based on #c3

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: xorg-x11-server-Xwayland), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:2561