diff --git a/README.md b/README.md
index 708b30c..bc72722 100644
--- a/README.md
+++ b/README.md
@@ -77,3 +77,10 @@ lspci -v
 [   16.004938] snd_hda_codec_realtek hdaudioC0D0:      Internal Mic=0x1b
 [   16.034863] iwlwifi 0000:00:14.3 wlo1: renamed from wlan0
 ```
+
+[Ref this toot](https://hachyderm.io/@beeb/114629130765373196)
+```
+$ cat /proc/asound/card*/codec* | grep Codec
+Codec: Realtek ALC256
+Codec: Intel Tigerlake HDMI
+```