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wilsonma
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HP E243M horizontal lines on screen

HP Recommended
HP eliteDisplay E243M
macOS 10.15 Catalina

Hi,

 

I've been using my HP monitor E243M connected to my Macbook Pro 15in 2017 (Intel HD Graphics 630 1536 MB graphics) as a second monitor for a year now, but today it stopped working.

 

When I now turn on the monitor, I get purple and yellow horizontal lines on the screen which moved down the screen. I connect the montior to my macbook pro using a HDMI cable and USB-C adapter. 

 

I've tried a different HDMI cable, 2 different USB-C adapters and also tried connecting my HP laptop to the monitor - all didn't work.

 

Any idea what might be causing this?

Thanks

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WAWood
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@wilsonma 

The screen never comes on with a normal display?

 

With swapping out different cables and even different computers, the only common hardware in the set is the monitor -- and it looks like it has failed.

 

Does your MacBook Pro have any features for running diagnostics that can be used to check the monitor?



I am a volunteer and I do not work for, nor represent, HP
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wilsonma
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hi @WaWood,

 

Last week it was working normally. But now, even without the HDMI connected, it has the purple and and yellow lines showing (and also makes a ticking noise).

 

I'm not aware of any diagnostics to check the monitor - are there any you could recommend?

 

thanks for your help

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WAWood
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@wilsonma 

Not aware of any that HP has.

 

A quick Google search brings up a half-dozen monitor diagnostics apps -- but all of these probably run in Windows and I don't know if any of them are free.



I am a volunteer and I do not work for, nor represent, HP
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