diff --git a/src/libboard_artiq/src/cxp_downconn.rs b/src/libboard_artiq/src/cxp_downconn.rs
index 7a2e992..8f07a65 100644
--- a/src/libboard_artiq/src/cxp_downconn.rs
+++ b/src/libboard_artiq/src/cxp_downconn.rs
@@ -11,11 +11,11 @@ pub fn loopback_testing(channel: usize, timer: &mut GlobalTimer, speed: cxp_phys
     unsafe {
         info!("waiting for tx&rx setup...");
         timer.delay_us(50_000);
-        info!(
-            "tx_phaligndone = {} | rx_phaligndone = {}",
-            (CXP[channel].rx_txinit_phaligndone_read)(),
-            (CXP[channel].rx_rxinit_phaligndone_read)(),
-        );
+        // info!(
+        //     "tx_phaligndone = {} | rx_phaligndone = {}",
+        //     (CXP[channel].rx_txinit_phaligndone_read)(),
+        //     (CXP[channel].rx_rxinit_phaligndone_read)(),
+        // );
 
         // enable txdata tranmission thought MGTXTXP, required by PMA loopback
         // (CXP[channel].rx_txenable_write)(1);