From 27dbf77d198d7ab7fc934b761c0885a6080353c4 Mon Sep 17 00:00:00 2001
From: Robert Mader <robert.mader@collabora.com>
Date: Mon, 23 May 2022 13:55:49 +0200
Subject: [PATCH] tests/wayland: Update documentation for
 MUTTER_REF_TEST_UPDATE

For some reason `LIBGL_ALWAYS_SOFTWARE=1` does not work as intended
while `MESA_LOADER_DRIVER_OVERRIDE=swrast` does.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1055>
---
 src/tests/meta-ref-test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tests/meta-ref-test.c b/src/tests/meta-ref-test.c
index 84ac8876d..f66b07417 100644
--- a/src/tests/meta-ref-test.c
+++ b/src/tests/meta-ref-test.c
@@ -56,13 +56,13 @@
  * existing reference image is pixel identical to the newly created one.
  *
  * Updating test reference images also requires using a software OpenGL
- * renderer, which can be achieved using LIBGL_ALWAYS_SOFTWARE=1
+ * renderer, which can be achieved using MESA_LOADER_DRIVER_OVERRIDE=swrast
  *
  * For example, for the test case '/path/to/test/case', run the test
  * inside
  *
  * ```
- * env LIBGL_ALWAYS_SOFTWARE=1 MUTTER_REF_TEST_UPDATE='/path/to/test/case`
+ * env MESA_LOADER_DRIVER_OVERRIDE=swrast MUTTER_REF_TEST_UPDATE='/path/to/test/case`
  * ```
  *
  */