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.

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..

⟐ Answered October 23, 2022 at 17:30 MST

⟐ Answer accepted April 25, 2016 at 19:19 MST

⟐ Answer accepted April 25, 2016 at 19:19 MST

My monitor is actually HP w2448hc, and the backlight is not working. The monitor seems to be producing the correct displayed signal, but can’t be seen unless in low light with a torch shining on the front of the screen.

How to access the backlight section, and check and repair it?

⟐ Answer edited February 10, 2022 at 11:02 MST

1. Use mini display to dvi cable connecting my laptop with the monitor, it shows 1280x800 only, no other option can be chosen.

2. Use Apple dual link dvi adaptor for this connection (which has a separate usb cable, and is used to connect my 30” apple Cinema Display with my laptop), the 2560x1600 resolution option shows up, but cursor stays at 1280x800, if I select that “2560x1600” resolution, there is nothing shows up on monitor at all (I can see some lights on the screen, but just no image shows up).

3. Use dvi to dvi cable connecting my Mac Pro desktop with this monitor, it has the same symptom (no image shows up on screen)

Does anyone know how to make the 2560x1600 setup on this monitor correctly?

Many thanks!

⟐ Commented January 13, 2023 at 9:43 MST

⟐ Commented May 27, 2020 at 17:36 MST

⟐ Answer accepted June 22, 2018 at 5:10 MST

⟐ Commented July 31, 2021 at 15:07 MST

I recently picked up a broken monitor on Craigslist for free. The gentleman said on the post that the light tubes were broken so I thought I'd give it a shot. When I arrived at his house to pick up the monitor he had the monitor disassembled still and showed me the broken CCFLs.

I brought the monitor home (well all the parts anyway), ordered 2 new sets of CCFLs, re-assembled the monitor, powered it on, and this is what I'm greeted with:

(Note - the monitor is upside down in the video just because it's easier to plug in and video record because of the power cord)

https://www.youtube.com/watch?v=cSZv-1nj...

The video might be a little misleading at first - it looks to be only black and white, but there is definitely color in the screen. The screen has several vertical lines of varying colors on the left and right sides. There are 2 'leaves' in the top left corner (bottom right in the video) of the screen which don't seem to be flickering or anything, but the rest of the monitor seems to flicker/flash.

I already spent $40 on the ccfls and over 8 hours on this thing, but would love to get this thing working without spending another $40 on it...any ideas?

I have had the same password for years.

Caps are not on, I’m not misspelling.

Also can’t go online, as our internet was changed yesterday, so can’t update it.

When I click on internet button, the pictures don’t come up to change the internet.

⟐ Commented March 08, 2018 at 5:51 MST