diff --git a/device-felix.mk b/device-felix.mk
index 21680d1..5a269dc 100644
--- a/device-felix.mk
+++ b/device-felix.mk
@@ -70,7 +70,8 @@ PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
 	vendor.display.async_off.supported=true
 
 #config of display brightness dimming
-PRODUCT_DEFAULT_PROPERTY_OVERRIDES += vendor.display.brightness.dimming.usage=1
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += vendor.display.0.brightness.dimming.usage=1
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += vendor.display.1.brightness.dimming.usage=0
 
 # Early wake up sysfs path for the secondary display
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
diff --git a/felix/BoardConfig.mk b/felix/BoardConfig.mk
index 183ff28..bba58ae 100644
--- a/felix/BoardConfig.mk
+++ b/felix/BoardConfig.mk
@@ -18,6 +18,7 @@ TARGET_BOOTLOADER_BOARD_NAME := felix
 TARGET_SCREEN_DENSITY := 420
 BOARD_USES_GENERIC_AUDIO := true
 USES_DEVICE_GOOGLE_FELIX := true
+BOARD_KERNEL_CMDLINE += swiotlb=noforce
 
 #Display
 USES_IDISPLAY_INTF_SEC := true