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-rw-r--r--docs/env_vars.md1
1 files changed, 1 insertions, 0 deletions
diff --git a/docs/env_vars.md b/docs/env_vars.md
index 6a0a9442..e5d5d62b 100644
--- a/docs/env_vars.md
+++ b/docs/env_vars.md
@@ -50,6 +50,7 @@ wlroots reads these environment variables
* *WLR_SCENE_DEBUG_DAMAGE*: specifies debug options for screen damage related
tasks for compositors that use scenes (available options: none, rerender,
highlight)
+* *WLR_SCENE_DISABLE_DIRECT_SCANOUT*: disables direct scan-out for debugging.
# Generic