diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
index 5dfdd30db..21c9222e1 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.c
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
@@ -3309,7 +3309,7 @@ drmmode_output_init(ScrnInfoPtr pScrn, drmmode_ptr drmmode, drmModeResPtr mode_r
         }
     }
 
-    ms->is_connector_vrr_capable =
+    ms->is_connector_vrr_capable |=
 	         drmmode_connector_check_vrr_capable(drmmode->fd,
                                                   drmmode_output->output_id);
     return 1;
diff --git a/hw/xfree86/drivers/modesetting/modesetting.man b/hw/xfree86/drivers/modesetting/modesetting.man
index bb948380b..71790011e 100644
--- a/hw/xfree86/drivers/modesetting/modesetting.man
+++ b/hw/xfree86/drivers/modesetting/modesetting.man
@@ -71,6 +71,13 @@ One of \*qglamor\*q or \*qnone\*q.  Default: glamor.
 Enable DRI3 page flipping.  The default is
 .B on.
 .TP
+.BI "Option \*qVariableRefresh\*q \*q" boolean \*q
+Enables support for enabling variable refresh on the Screen's CRTCs
+when an suitable application is flipping via the Present extension.
+.br
+The default is
+.B off.
+.TP
 .BI "Option \*qAsyncFlipSecondaries\*q \*q" boolean \*q
 Use async flips for secondary video outputs on multi-display setups. If a screen
 has multiple displays attached and DRI3 page flipping is used, then only one of