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-rw-r--r--composite/compinit.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/composite/compinit.c b/composite/compinit.c
index bc1130e78..64314640f 100644
--- a/composite/compinit.c
+++ b/composite/compinit.c
@@ -355,6 +355,9 @@ compScreenInit(ScreenPtr pScreen)
return FALSE;
}
+ if (!disableBackingStore)
+ pScreen->backingStoreSupport = WhenMapped;
+
cs->PositionWindow = pScreen->PositionWindow;
pScreen->PositionWindow = compPositionWindow;