[jhaveri]

Matt: I have got into trouble, I hope you can help. After I installed the coreboot, prepared Kodibuntu usb boot disk, installed kodibuntu, and rebooted the hp chrombox, I do not see any display on the tv. The chrombox is connected by hdmi to denon avr 891, and from denon to samsung ultra hd 4k tv through hdmi from denon. Everything was fine in dual boot. When I went upstairs to my pc, I saw that wireless was working in the kodibuntu, but I could not ssh. So I disconnected chrombox, and brought it upstairs and connected to my hidef samsung monitor through hdmi. Kodibuntu boots fine, and I see display on the monitor. I took the chrombox again to denon/tv connection, and still no display. The tv briefly says resolution not supported, but upstairs monitor says it was 1920x1080. I am completely lost. Thanks for your help.

well, first thing I would try is connecting to the CB directly to your TV, and see if that works. If it does, then your receiver is causing the issue, if not, then it's the TV itself. Either way, I'd guess that you need to somehow set a fixed output resolution on boot since the automatic negotiation isn't working. That's a question for the Ubuntu forums however.

I did find the answer at the ubuntu forum. Basically, I had to uncomment the console line in /etc/default/grub, and bingo, the tv display got right on.

Thanks again Matt for pointing me to the right direction. I have left my solution here for someone who might get into the same problem. You have been a lifesaver.

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Screen resolution is wrong, no matter what I do

Quick fix that often works

Maybe it will help if you edit the file /etc/default/grub, (remove #)

sudo nano /etc/default/grub

from

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

to

# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console

and make it active by running

sudo update-grub
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