diff --git a/alsa-ucm-conf-1.2.13-upstream-fix_handling_of_empty_sys_vendor.patch b/alsa-ucm-conf-1.2.13-upstream-fix_handling_of_empty_sys_vendor.patch
new file mode 100644
index 0000000..24664a4
--- /dev/null
+++ b/alsa-ucm-conf-1.2.13-upstream-fix_handling_of_empty_sys_vendor.patch
@@ -0,0 +1,34 @@
+From 11b028a9a01e47fc9b48e4a566803752011902e2 Mon Sep 17 00:00:00 2001
+From: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
+Date: Wed, 13 Nov 2024 14:48:38 +0200
+Subject: [PATCH] UCM2: Intel: sof-hda-dsp: Fix handling of empty sys_vendor
+
+The mistake in UCM syntax caused in alsaucm start error:
+
+ALSA lib ucm_cond.c:367:(if_eval) unknown If.Condition.Type
+
+Fixes: 13022a97711d ("sof-hda-dsp: Fix the case where sysfs dmi
+       sys_vendor attribute is not set")
+
+Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/463
+Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
+Signed-off-by: Jaroslav Kysela <perex@perex.cz>
+---
+ ucm2/Intel/sof-hda-dsp/HiFi-sof.conf | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf b/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf
+index fea8159e..c755ba26 100644
+--- a/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf
++++ b/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf
+@@ -6,8 +6,8 @@ Define.SOFVendor "$${sys:devices/virtual/dmi/id/sys_vendor}"
+ 
+ If.SOFVendor {
+ 	Condition {
+-		Type Empty
+-		String "${var:SOFVendor}"
++		Type String
++		Empty "${var:SOFVendor}"
+ 	}
+ 	True.Define.SOFVendor "${sys:devices/virtual/dmi/id/board_vendor}"
+ }
diff --git a/alsa-ucm-conf-1.2.13-upstream-fix_when_sysfs_dmi_product_name_not_set.patch b/alsa-ucm-conf-1.2.13-upstream-fix_when_sysfs_dmi_product_name_not_set.patch
new file mode 100644
index 0000000..4fdbbb4
--- /dev/null
+++ b/alsa-ucm-conf-1.2.13-upstream-fix_when_sysfs_dmi_product_name_not_set.patch
@@ -0,0 +1,59 @@
+From 6397c663d7086b87ca5cbba323ea3dcd0ecd3200 Mon Sep 17 00:00:00 2001
+From: Jaroslav Kysela <perex@perex.cz>
+Date: Wed, 13 Nov 2024 16:19:15 +0100
+Subject: [PATCH] sof-hda-dsp: Fix the case where sysfs dmi product_name
+ attribute is not set
+
+  !!DMI Information
+  !!---------------
+
+  Manufacturer:
+  Product Name:
+  Product Version:
+  Firmware Version:  R6G07
+  System SKU:        Default string
+  Board Vendor:      Default string
+  Board Name:        Default string
+
+BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=2292583
+Signed-off-by: Jaroslav Kysela <perex@perex.cz>
+---
+ ucm2/Intel/sof-hda-dsp/HiFi-sof.conf | 11 ++++++++++-
+ 1 file changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf b/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf
+index c755ba26..5fd1843f 100644
+--- a/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf
++++ b/ucm2/Intel/sof-hda-dsp/HiFi-sof.conf
+@@ -3,6 +3,7 @@
+ # File paths for controlling SOF processing
+ 
+ Define.SOFVendor "$${sys:devices/virtual/dmi/id/sys_vendor}"
++Define.SOFProduct "$${sys:devices/virtual/dmi/id/product_name}"
+ 
+ If.SOFVendor {
+ 	Condition {
+@@ -12,6 +13,14 @@ If.SOFVendor {
+ 	True.Define.SOFVendor "${sys:devices/virtual/dmi/id/board_vendor}"
+ }
+ 
++If.SOFProduct {
++	Condition {
++		Type String
++		Empty "${var:SOFProduct}"
++	}
++	True.Define.SOFProduct "${sys:devices/virtual/dmi/id/board_name}"
++}
++
+ If.SOFIPCVer {
+ 	Condition {
+ 		Type ControlExists
+@@ -43,7 +52,7 @@ If.SOFPath {
+ 		HeadphoneIirBlob "${var:BlobPath}/eq_iir/pass.blob"
+ 		HeadphoneFirBlob "${var:BlobPath}/eq_fir/pass.blob"
+ 		HeadphoneDrcBlob "${var:BlobPath}/drc/passthrough.blob"
+-		ConfPathFromDMI "${var:SOFVendor}/${sys:devices/virtual/dmi/id/product_name}.conf"
++		ConfPathFromDMI "${var:SOFVendor}/${var:SOFProduct}"
+ 		SOFProductConfig "/blobs/sof/product_configs/${var:ConfPathFromDMI}"
+ 		SOFConfFullPath "${ConfTopDir}${var:SOFProductConfig}"
+ 		SOFUserConfig "/blobs/sof/user_configs/${var:ConfPathFromDMI}"
diff --git a/alsa-ucm-conf.spec b/alsa-ucm-conf.spec
index 3a8c6f6..f8a4231 100644
--- a/alsa-ucm-conf.spec
+++ b/alsa-ucm-conf.spec
@@ -1,6 +1,6 @@
 Name:          alsa-ucm-conf
 Version:       1.2.13
-Release:       1mamba
+Release:       2mamba
 Summary:       ALSA Use Case Manager configuration
 Group:         System/Kernel and Hardware
 Vendor:        openmamba
@@ -8,6 +8,8 @@ Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://github.com/alsa-project/alsa-ucm-conf
 Source:        https://github.com/alsa-project/alsa-ucm-conf.git/v%{version}/alsa-ucm-conf-%{version}.tar.bz2
+Patch0:        alsa-ucm-conf-1.2.13-upstream-fix_handling_of_empty_sys_vendor.patch
+Patch1:        alsa-ucm-conf-1.2.13-upstream-fix_when_sysfs_dmi_product_name_not_set.patch
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 ## AUTOBUILDREQ-END
@@ -17,6 +19,8 @@ ALSA Use Case Manager configuration.
 
 %prep
 %setup -q
+%patch 0 -p1 -b .upstream-fix_handling_of_empty_sys_vendor
+%patch 1 -p1 -b .upstream-fix_when_sysfs_dmi_product_name_not_set
 
 %build
 
@@ -38,6 +42,9 @@ cp -a ucm2 %{buildroot}%{_datadir}/alsa
 %doc LICENSE
 
 %changelog
+* Sat Nov 16 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2.13-2mamba
+- apply upstream patches to fix HDMI audio detection seen on some platforms
+
 * Wed Nov 13 2024 Automatic Build System <autodist@openmamba.org> 1.2.13-1mamba
 - automatic version update by autodist