Thanks for reaching out!
I noticed that you are not on the latest image, if you use the uname -a command on the latest image, you should see the message:
Linux intel-5xx-64 4.4.41-yocto-standard #1 SMP PREEMPT Mon Mar 20 16:49:29 EET 2017 x86_64 GNU/Linux
I suggest you to follow this guide https://software.intel.com/en-us/intel-joule-getting-started to get and install the latest Ref-OS-IoT image. Then I suggest you to follow the part of the guide found in https://software.intel.com/en-us/node/721489 in order to set up the HDMI output.
I hope this information helps you,
Thanks for the tips. I've installed the Ref-OS-IoT image from here: Index of /ref-os-iot/releases/1702/5xx . I've created a bootable USB and installed the image. Now uname -a shows:
root@intel-5xx-64:~# uname -a
Linux intel-5xx-64 4.4.41-yocto-standard #1 SMP PREEMPT Tue Feb 21 19:20:12 EET 2017 x86_64 GNU/Linux
I've also tried again to use 'xrandr' and it shows something different, but still no output on the monitor:
root@intel-5xx-64:~# export DISPLAY=:0.0
root@intel-5xx-64:~# xrandr -q
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP1 disconnected primary (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 480mm x 270mm
1920x1080 60.00*+ 50.00 59.94
1920x1080i 60.00 50.00 59.94
1280x1024 75.02 60.02
1280x720 60.00 50.00 59.94
1024x768 75.08 60.00
800x600 75.00 60.32
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 60.00 59.94
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Also, when I first booted the Joule, the monitor displayed even the BIOS progress. Maybe the BIOS should be different ? I'm using the one from here: Current Release: 1D1
Thank you for letting us know!
I'm glad that you are finally able to have HDMI output on your Joule. If you ever have any other doubts, questions or issues with your Joule, please don't hesitate to come back to the community. We'll try to help you in any way we can.