Changes between Version 57 and Version 58 of ventana/ubuntu

Timestamp:

06/25/2020 11:15:48 PM (4 years ago)

Author:

Tim Harvey

Comment:

added desktop ui section

ventana/ubuntu

@@ -298 +298 @@
 
 
+[=#desktop]
+== Hardware Accelerated Desktop UI
+While it is not typical to use an embedded system as an Ubuntu desktop we often are asked how to do it.
+
+With the Ubuntu Focal (20.04) all the software is in place to give you 2D and 3D hardware acceleration with the IMX6 with a modern kernel such as the Linux 5.4 kernel we use in our pre-built images.
+
+Here are the steps to add a desktop UI:
+ 1. Install gnome desktop:
+{{{#!bash
+# add packages
+apt install gnome-session gnome-terminal
+# add a non-root user (required to login)
+adduser gateworks
+# sync the filesystem and reboot
+sync
+reboot
+}}}
+  - you'll notice dragging opaque windows around is fairly smooth as it is using hardware 2D acceleration
+ 1. 3D opengl hardware acceleration:
+{{{#!bash
+apt install mesa-utils glmark2
+# from gnome-terminal running on display from above:
+glxgears # 75fps on IMX6Q displaying HDMI 1080p60hz
+glmark2 # another test that renders via opengl
+}}}
+ 1. GStreamer Video display
+{{{#!bash
+apt-get install gstreamer1.0-x gstreamer1.0-tools libgstreamer1.0-0 \
+  gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly \
+  gstreamer1.0-libav gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio \
+  v4l-utils alsa-utils
+# using kmssink will render right over GUI
+gst-launch-1.0 videotestsrc ! kmssink
+# using fbdevsink will also render right over GUI
+gst-launch-1.0 videotestsrc ! fbdevsink
+# using waylandsink will render 'within' GUI
+gst-launch-1.0 videotestsrc ! waylandsink # renders 'within' gui
+}}}
+  - see [wiki:gstreamer gstreamer] wiki page for information on hardware accelerated encode/decode
+
 [=#kernel]
 == Kernel