diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 79a36186795542f40b72b5e1f2e82e834e3e30af..22e9e2d3c71abd6fd1f5f6b0d0e63dc309416b25 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -209,6 +209,8 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
 			if (ast->chip == AST2500 &&
 			    scu_rev == 0x100)           /* ast2510 */
 				ast->support_wide_screen = true;
+			if (ast->chip == AST2600)		/* ast2600 */
+				ast->support_wide_screen = true;
 		}
 		break;
 	}