diff --git a/target/allwinner/mandolin-c1evb/configs/sys_config.fex b/target/allwinner/mandolin-c1evb/configs/sys_config.fex
index 9453fd88a..a5efde9d0 100755
--- a/target/allwinner/mandolin-c1evb/configs/sys_config.fex
+++ b/target/allwinner/mandolin-c1evb/configs/sys_config.fex
@@ -501,8 +501,8 @@ screen1_output_type      = 1
 screen1_output_mode      = 4
 
 fb0_format               = 8
-fb0_width                = 480
-fb0_height               = 854
+fb0_width                = 1024
+fb0_height               = 768
 
 fb1_format               = 0
 fb1_width                = 0