diff --git a/Dockerfile b/Dockerfile
index e169150..df4447d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -235,7 +235,11 @@ RUN apt-get clean \
 
 ENV LIBVA_DRIVER_NAME=iHD
 
-USER user
+# In order for ffmpeg to access the video input, 'user' needs to have
+# access to the hardware. Not sure how to do that across different
+# OS releases, so setting user to 'root' for now.
+USER root
+
 WORKDIR /home/user
 
 
diff --git a/Dockerfile.solution b/Dockerfile.solution
index 511220c..902aee8 100644
--- a/Dockerfile.solution
+++ b/Dockerfile.solution
@@ -69,6 +69,10 @@ RUN apt-get clean \
 
 ENV LIBVA_DRIVER_NAME=iHD
 
-USER user
+# In order for ffmpeg to access the video input, 'user' needs to have
+# access to the hardware. Not sure how to do that across different
+# OS releases, so setting user to 'root' for now.
+USER root
+
 WORKDIR /home/user