Chosen Solution
Hi, I have a Hp27b monitor that shows no signal on both the hdmi and displayport inputs. I have tried manually selecting hdmi or displayport on the monitor. I tested this on two different laptops and both laptops are able to detect and identify the monitor on the laptop end. I tried updating the monitor driver and still the issue persists. The laptop is able to send the signal to the monitor, I believe the monitor itself is not receiving the output from the computer. I also tried different hdmi and displayport cables and same issue. I was able to get a signal on another monitor as well so that eliminates the laptop itself having issues. Would this be hardware issue of the monitor? If so, would it be the logic board or the cables itself? Thanks for reading. Update (04/26/2020)
This is what shows up right away, I don’t recall if it’s supposed to be show the hp logo when powered on. Yes I can view the entire menu perfectly, I can browse to change contrast, viewing mode, input etc..
Hi @cannd , Assuming that you can view the monitor’s OSD OK and that there is no signal received on both input types and as you have tried different known working cables as well, most probably there is a problem with the motherboard. If the monitor is out of warranty you could try opening it up and check if there is anything obviously wrong e.g. burnt out or heat stressed components etc. I don’t know the monitor but I suspect the the signal input connectors (HDMI & DisplayPort) are mounted directly on the circuit board and it would be unusual for both of them to be loose etc. You could try getting a replacement board by searching for the “board” number rather than the monitor make and model number (this only gives new monitors and I haven’t found any parts for it). If the monitor is still within the manufacturer’s warranty period consult the warranty statement as to what to do to make a claim for a warranty repair or replacement.
I’m guessing this would work if you unplug everything and plug it back in. I have (and HATE) this same monitor for this reason. When you have something plugged into Display Port, then switch to HDMI, the Display Port becomes “Inactive” and the only way to get it be “Active” again is by unplugging the power to the display for 30 seconds or so (give or take..) then plugging it back in. It’ll work then, but you have to do this each time. I just use the monitor to keep my papers from blowing away and bought a Samsung.
If you have a Lenovo ThinkPad you probably have an update that needs to be installed. Search Lenovo Vantage, check for updates, and install the updates.
I have the exact same problem. 32 inch HD monitor. Black screen. I use a dock station and the new HP monitor is recognized but only has a black screen aside from the menu which seems to work normally. The unit is new, out of box.
