[sow07]

Hi there, I'm a long time user of both Kodi and Chromebox.  I first want to say thank you for the excellent work you've done allowing an easy path for Kodi to work on the Chromebox.  It's a really nice solution and I've deployed it a number of times now for grandparents and myself.

My aspiring setup is having trouble however and I could use some help.  I have been using a standard x86 PC connected to my Yamaha RX-V467 Receiver which worked well but am trying to slim down the profile with an Asus Chromebox.  It essentially doesn't work.

I've put a lot of energy into diagnosing the problem and have numerous clues but despite that am currently stuck.  I've gone so far as to order an upgraded receiver from a different manufacturer (Integra/Onkyo DTR 30.4) as well as an HDMI detective and still no luck.  That was really frustrating.

I'm also in possession of a handful of Chromeboxes I recently accumulated including an i7 CN62 so have definitely ruled out hardware failure.  The i7 fails the same was as the basic Celeron CN60's too.

Below is a list of configurations I've tried with the results.  These are all with the latest Libreelec Kodi and EZ Script/UEFI load unless otherwise stated.
 

• Directly attaching to (Vizio) TV's works fine.
  
• RX-V467 + Asus CN60 + standard 1080p - fails
  
• RX-V467 + Asus CN60 + standard 1080i - works
  
• DTR 30.4 + Asus CN60 + 1080p or 1080i - fails
  
• HDMI detective using built-in profiles or the working TV profile all fail when going through either Receiver.
  
• CN6X with original ChromeOS works through Receivers at full 1080p.
  
• 2017 era EZ script (no UEFI) + Kodi Libreelec v16 through Receivers also fails.  This was more first happily functioning install which used in a bedroom sans receiver.
  
• Hitting esc to bring up the UEFI BIOS boot menu works and displays properly through the Receivers.  Screen goes blank after proceeding to boot Kodi.  Says its 1080p also.
  
• Latest Ubuntu 18.04.1 live USB boot also fails
  
• Various resolutions 720p, etc. no-go on the Onkyo.  As previously stated, 1080i worked on the Yamaha.
  

I've dumped the EDID using xrandr on Kodi and confirmed HDMI detective + Receivers was doing its job.

It's interesting to me that the original ChromeOS works with 1080p (and fwiw, I tried cloning the active EDID using HDMI Detective for the working ChromeOS configuration but it still failed).  So the hardware is certainly capable of outputting through the receivers successfully but something about the software is getting in the way.

The Kodi logs showing the initial (failed) Receiver hookup and then changing over to the TV directly (12:11 timeframe) are here https://paste.kodi.tv/idomidubuq.kodi

Note, this is with ARC enabled (my current workaround) so you'll still see the ONK 30.4 referenced even though it's really hooked up to the Vizio directly.

Any thoughts on how to proceed would be most appreciated.  Even confirmation that people are, routinely or otherwise, successfully using HDMI Receivers in their setups with Asus CN6x devices would be helpful.

Tia!   

 As you've diagnosed, it's an LE / display driver issue, so changing the firmware display init (BIOS vs UEFI) isn't going to help, nor is looking at Kodi logs (since Kodi doesn't set up the display).  Let's a see a dmesg log from a clean boot as well as output from 'xrandr --props' for the non-working case (Chromebox->AVR->TV).

FWIW, I ran my CN60 for years in such a config, with Sony, Onkyo, and Marantz AVRs - never had an issue with any of them.  Others like yourself have, and injecting the EDID as per the post directly before yours has proved helpful, as has manually setting the mode using xrandr via an autostart script  

Thanks for the quick reply.

Here's the xrandr dump:  https://paste.kodi.tv/egululegix
dmesg:  https://paste.kodi.tv/neyuguweza
And in case it's useful, a Xorg.0.log:  https://paste.kodi.tv/enamaginos

Also, my TV is not 4K. 

I also wasn't sure if I'm missing something stupid like not using upgraded HDMI cables, etc.