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Guidelines
Troubleshooting black screen issues on HP Notebooks: Click here to view the instructions!
HP Recommended
Probook 450 G6
Microsoft Windows 10 (64-bit)

Hello, I have problem with my Probook 450 G6. The HDMI port stopped working. When I connect HDMI cable, the monitor starts searching for signal, after couple of seconds, the monitor writes no signal. Windows is not able to detect the monitor. When I try to duplicate screen using Win+P shortcut, the menu shows, but changing the option takes no effect, still black screen on monitor. I have tried to reinstall intel HD graphics driver, tried some older drivers with no effect. Then i tried some suggestions posted on this forum, but nothing takes effect. I am very desperate about this malfunction. Only one thing i remember is that HP support assistant installed some new version of bios firmware. Actual version of BIOS is R71 Ver. 01.14.01 and date is 10/19/2020. Is there any chance of bug in this update causing this malfunction? Do you have any useful suggestions about this problem? Thank you.

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