Not sure where to ask this but I just flashed an Asus CN60. I thought it bricked but turns out only output comes from the HDMI port and not the Display port which worked before flashing. So I do get to the welcome screen and am able to proceed normally but only via HDMI port not Display Port. Not the end of the world but it’d be nice if the display port worked. Only thing I can think of, it would work once an OS is installed and you boot to it. I have a windows box that works like this. I must be on VGA port to get to BIOS because any other port shows blank screen. Once booted into windows, the other ports are fine. That is what tipped me off and I decided to switch from DP to HDMI. Any ideas?
my CN60 running the current 2503 firmware has no issues showing the firmware boot screen/menus via DP (or HDMI). Sounds like a compatibility issue with the firmware display init and your monitor/cable. Unfortunately as the display init on this device is using a closed-source binary (edk2 GOP driver), there’s not much that can be done. You could switch to the open-source display init (libgfxinit) but then HDMI audio doesn’t work under Windows (DP audio is fine, Linux is fine)
Yes, this could be the case as I am using a DP to HDMI cable. It was cheaper than getting just an adapter and then using standard HDMI cable along with it. What got me, is this same cable worked under ChromeOS. It only stopped once the firmware was changed. Again, not the end of the world, it was just annoying because I had to disconnect my main box to use its HDMI cable as I had nothing else. I’ll try it with an adapter and HDMI combo when I can. Thanks for the response.
it may have very well not worked under the firmware part of ChromeOS (recovery or developer mode screens). The Linux OS display driver is much more robust than the firmware one.