[robca]

I'm using a CN60 with Coreboot and Libreelec 9.2.6. Everything is working fine, as long as I turn on the TV (Vizio M55-F0), then turn on the Asus CN60.

If I reboot the Chromebox when the TV is off, I get no screen upon turning on the TV. I suspect that the CN60 defaults to DP and not HDMI when rebooting without a display.

Is there a way to force the system to use HDMI when rebooting (maybe using a startup script?). I tried playing with xrandr, but when the display is off, I get "disconnected" for all device, and when I try to use the xrandr --output HDMI1 --mode 0x126, I get an error (when the display is connected, I can set the 0x126 mode, which in my case is 1920x1080p60). Output from xrandr --verbose with the display off is here https://paste.kodi.tv/omorebayik

Is there a way to boot in HDMI, FHD mode? Even when I turn on the TV then the CN60, most of the times the default screen gets reverted to 4K, which doesn't really work well on such an old Chromebox

EDIT: I searched more past posts with similar problems, and I found something that might possibly apply. Is this a case where I should use a custom EDID as per https://wiki.libreelec.tv/configuration/edid? In other cases I saw mentions of a custom BIOS with hardcoded 1080p resolution, which would also work for me

the custom EDID -- more like saving/loading the display's EDID regardless of attachment state -- should allow you to use a startup script to set the output resolution to 1080p60 regardless of connection state. Both of these are covered on the Chromebox wiki page

thanks for confirming, Matt. Will follow those steps now that I know it's the right path.

Thanks for all you do for these devices and the community, btw. While looking for more info, I noticed that on your page https://mrchromebox.tech/#support, the "Kodi Chromebox wiki page" link points to https://kodi.wiki/view/Chromebox, which is a dead end. The right page is now archived under https://kodi.wiki/view/Archive:Chromebox (which is the one you also have in your signature here). I thought you might want to know...