Notebook doesn't boot with HDMI cable plugged in

[zubarky]

HP Pavilion 15-au021ur (X5B76EA) does not boot with HDMI cable plugged in. Turns on, the screen becomes light grey but nothing is going on. When the cable is plugged off boots well and the external monitor works if the cable is plugged in to operating system. If reboot still doesn't boot. New PC just purchased.

[Riddle_Decipher]

@zubarky

Welcome to HP Forums, this is a great place to get support, find answers and tips,
Thank you for posting your query, I'll be more than glad to help you out 🙂

As I understand the notebook doesn't boot with HDMI cable plugged in,

Here's a related HP Forums post that seems to have helped others: Click here

(though the issue and the error message mentioned in this post are different from yours, the steps suggested should resolve the issue)

Keep me posted for further assistance,

Regards,

[zubarky]

It seems that the problem is with the monitor dell e228 wfpc. Notebook boots fine with another monitor and with tv-set. Is there any idea how to fix that problem since it works with this monitor, just won't boot with it plugged in...?

[Riddle_Decipher]

@zubarky

Thank you for the update,

I appreciate you letting us know about the same,

Since the issue is related and bound to occur only while the 3rd party monitor is in use,

I would recommend contacting their support team so they may provide relevant support.

You may attempt downloading and reinstalling the latest drivers for the dell monitor and try again,
before contacting their support team.

Let me know how that pans out,

Regards,

[zubarky]

it seems like the conflict occures before any drivers even load - at hardware level.

[Riddle_Decipher]

@zubarky

Thank you for replying,

I understand this happens at a hardware level,

Nevertheless, as you've mentioned it doesn't happen on the HP product and hence the best way forward is to contact their support team.

Let me know what they have to say about it,

As I'll be glad to help you further (If need be) once you've consulted with them about the same.

Regards,