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Archived This topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.

‎05-29-2021 04:35 PM

HP Recommended
Product: Z27q G3 monitor
Operating System: Microsoft Windows 10 (64-bit)

I have ProBook 455 G7 (12X21EA#BED) and Thunderbolt Dock 120W G2 EURO (2UK37AA) connected. It worked fine with Samsung monitor connected to DisplayPort over conversion cable DP to DVI. Now I have bought new monitor Z27q G3 (1C4Z7AA) and tried to connect it to same DP using original DP to DP cable (got it in the box). At first it was working but going blank for few seconds after variable time of working (from few seconds to 1 or 2 minutes). I have installed drivers for it tried to solve the problem (different cable, updated firmware for dock, changed DP on dock..). Somehow I managed to make it work but only until next switch off of the system. After that it wont work at all (reports: no signal on the DP). Updated everything including BIOS. Run checks on the laptop-no problem found. Installed HP Display Center but nothing helped. Now some times I can see it in WIN Display Settings but still same: no signal on DP.

Any advise?

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