diff -Nru firmware-sof-2.0/debian/changelog firmware-sof-2.0/debian/changelog
--- firmware-sof-2.0/debian/changelog	2023-11-15 23:32:40.000000000 +0800
+++ firmware-sof-2.0/debian/changelog	2024-03-05 20:27:21.000000000 +0800
@@ -1,3 +1,11 @@
+firmware-sof (2.0-1ubuntu4.6) jammy; urgency=medium
+
+  * Enable the mic-mute led on Dell MTL laptops. LP: #2049569
+    - Update v2.8.1 sof-hda-generic-2ch.tplg for Intel MTL hardware
+    - Add sof-ipc4-v2.8.1/mtl/, intel-signed + community
+
+ -- Chris Chiu <chris.chiu@canonical.com>  Tue, 05 Mar 2024 20:27:21 +0800
+
 firmware-sof (2.0-1ubuntu4.5) jammy; urgency=medium
 
   * Orchid Bay MLK2/Maya Bay MLK soundwire support. LP: #2042090
Binary files /tmp/lyxSgezlVL/firmware-sof-2.0/debian/patches/0005-Add-sof-ipc4-v2.8.1-mtl-intel-signed-community.patch and /tmp/RG83L8cHn4/firmware-sof-2.0/debian/patches/0005-Add-sof-ipc4-v2.8.1-mtl-intel-signed-community.patch differ
diff -Nru firmware-sof-2.0/debian/patches/series firmware-sof-2.0/debian/patches/series
--- firmware-sof-2.0/debian/patches/series	2023-11-15 23:32:40.000000000 +0800
+++ firmware-sof-2.0/debian/patches/series	2024-03-05 20:27:21.000000000 +0800
@@ -2,3 +2,4 @@
 0002-Add-more-sof-v2.7.1-Intel-MTL-binaries.patch
 0003-Add-Intel-SOF2.7.2-topology-files.patch
 0004-Update-v2.2.8-topology-files-for-Intel-RPL-platforms.patch
+0005-Add-sof-ipc4-v2.8.1-mtl-intel-signed-community.patch
diff -Nru firmware-sof-2.0/debian/rules firmware-sof-2.0/debian/rules
--- firmware-sof-2.0/debian/rules	2023-11-15 23:32:40.000000000 +0800
+++ firmware-sof-2.0/debian/rules	2024-03-05 20:27:21.000000000 +0800
@@ -17,4 +17,5 @@
 	cp -a sof-ace-tplg-v2.7.2/* $(SOF_INSTALL_DIR)/sof-ace-tplg
 	cp -a sof-ipc4-v2.7 $(SOF_INSTALL_DIR)/sof-ipc4
 	cp -a sof-ipc4-v2.7.1/* $(SOF_INSTALL_DIR)/sof-ipc4
+	cp -a sof-ipc4-v2.8.1/* $(SOF_INSTALL_DIR)/sof-ipc4
 	dh_auto_install
diff -Nru firmware-sof-2.0/debian/source/include-binaries firmware-sof-2.0/debian/source/include-binaries
--- firmware-sof-2.0/debian/source/include-binaries	2023-11-15 23:32:40.000000000 +0800
+++ firmware-sof-2.0/debian/source/include-binaries	2024-03-05 20:27:21.000000000 +0800
@@ -29,3 +29,5 @@
 debian/patches/0002-Add-more-sof-v2.7.1-Intel-MTL-binaries.patch
 debian/patches/0003-Add-Intel-SOF2.7.2-topology-files.patch
 debian/patches/0004-Update-v2.2.8-topology-files-for-Intel-RPL-platforms.patch
+debian/patches/0005-Add-sof-ipc4-v2.8.1-mtl-intel-signed-community.patch
+v2.0.x/sof-tplg-v2.0/sof-hda-generic-2ch.tplg
Binary files /tmp/lyxSgezlVL/firmware-sof-2.0/v2.0.x/sof-tplg/sof-hda-generic-2ch.tplg and /tmp/RG83L8cHn4/firmware-sof-2.0/v2.0.x/sof-tplg/sof-hda-generic-2ch.tplg differ
Binary files /tmp/lyxSgezlVL/firmware-sof-2.0/v2.0.x/sof-tplg-v2.0/sof-hda-generic-2ch.tplg and /tmp/RG83L8cHn4/firmware-sof-2.0/v2.0.x/sof-tplg-v2.0/sof-hda-generic-2ch.tplg differ