ASUS monitor says "no signal"

I have an ASUS monitor connected to channel HDMI1 from my Lenovo workstation, which is blank (black) all the time.

If I switch it off and on again, it’ll start, show the ASUS animation and then “no signal”, before going blank again.

It used to work fine until a few days ago when I tried to use from a laptop. The monitor works when connected to my raspberry pi, but not to my laptop or my workstation.

I have used different cables, which seem to all work fine with other monitors.

It doens’t appear in Display dialog (I’m using XFCE).

Some logs:

inxi -Fazy | eos-sendlog
https://0x0.st/Xgie.txt

Could someone help me?
Thanks.

So, this is a weird one, as I have an ASUS (VG248QE) monitor too, and have had a couple of janky incidents with it that involved it not detecting input. Here’s what I did to fix mine.

  • Unplug the power from the monitor, and then repeatedly press the power button to purge any residual capacitance. Once the light on the power switch no longer turns on, plug the monitor back in.
  • If needed, cycle through the inputs.

Beyond that, are you seeing input when you post to BIOS?