From 694fe5f7e526f9858c53a8ffe2c8a19cb6b3bbe0 Mon Sep 17 00:00:00 2001
From: Faith Ekstrand <faith.ekstrand@collabora.com>
Date: Mon, 7 Jul 2025 10:13:06 -0400
Subject: [PATCH] docs: Improve the docs for LIBGL_KOPPER_DRI2

Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36014>
---
 docs/envvars.rst | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/docs/envvars.rst b/docs/envvars.rst
index 3796858ee4d..bb078f52647 100644
--- a/docs/envvars.rst
+++ b/docs/envvars.rst
@@ -36,9 +36,10 @@ LibGL environment variables
 
 .. envvar:: LIBGL_KOPPER_DRI2
 
-   disable DRI3 with Zink if set to ``true``.
-   In general, this should not be used unless you know what you are
-   doing. Some examples of "knowing what you are doing" include:
+   if set to ``true``, allow loading Zink even if X11 does not support
+   explicit DRM format modifiers. In general, this should not be used
+   unless you know what you are doing. Some examples of "knowing what you
+   are doing" include:
    - running xrdp
    - using a VK driver which doesn't support modifiers