diff --git a/Dockerfile b/Dockerfile
index cd987730..56a077f8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,8 +12,9 @@ RUN \
  DEBIAN_FRONTEND=noninteractive \
  apt-get install --no-install-recommends -y \
 	firefox \
-	terminator \
-	kubuntu-desktop && \
+	kmix \
+	kubuntu-desktop 
+	terminator && \
  echo "**** cleanup ****" && \
  apt-get autoclean && \
  rm -rf \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index e4a4f101..d64d0359 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -12,8 +12,9 @@ RUN \
  DEBIAN_FRONTEND=noninteractive \
  apt-get install --no-install-recommends -y \
 	firefox \
-	terminator \
-	kubuntu-desktop && \
+	kmix \
+	kubuntu-desktop \
+	terminator && \
  echo "**** cleanup ****" && \
  apt-get autoclean && \
  rm -rf \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index 3ee235ac..f77c544f 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -12,8 +12,9 @@ RUN \
  DEBIAN_FRONTEND=noninteractive \
  apt-get install --no-install-recommends -y \
 	firefox \
-	terminator \
-	kubuntu-desktop && \
+	kmix \
+	kubuntu-desktop \
+	terminator&& \
  echo "**** cleanup ****" && \
  apt-get autoclean && \
  rm -rf \
diff --git a/root/defaults/startwm.sh b/root/defaults/startwm.sh
index 9e865d37..0cf0f181 100755
--- a/root/defaults/startwm.sh
+++ b/root/defaults/startwm.sh
@@ -1,2 +1,3 @@
 #!/bin/bash
+/usr/bin/pulseaudio --start
 /usr/bin/startplasma-x11 > /dev/null 2>&1