From 9d43e7e4d67d4076c8b20ee2715eadec86a83e73 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Thu, 18 Aug 2022 19:17:33 +0200
Subject: backend/drm: add libliftoff interface

---
 docs/env_vars.md | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'docs')

diff --git a/docs/env_vars.md b/docs/env_vars.md
index 39daf9fd..e36cdc78 100644
--- a/docs/env_vars.md
+++ b/docs/env_vars.md
@@ -24,6 +24,8 @@ wlroots reads these environment variables
   mode setting
 * *WLR_DRM_NO_MODIFIERS*: set to 1 to always allocate planes without modifiers,
   this can fix certain modeset failures because of bandwidth restrictions.
+* *WLR_DRM_FORCE_LIBLIFTOFF*: set to 1 to force libliftoff (by default,
+  libliftoff is never used)
 
 ## Headless backend
 
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