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Here is the solution to resolve PCI Express Root Complex driver Issue Click here to view the instructions!
HP Recommended
HP ZBook x2 G4 Detachable Workstation
Microsoft Windows 10 (64-bit)

On my ZBook X2 G4, using the current HP-approved "32.0.15.5612 Rev.W" was causing:

 

- freeze when connecting second monitor via USB-C, unless the computer was booted with the monitor already attached.  Image on the primary monitor was still there but computer seemed entirely frozen and needed hard reset.

- sleep/hibernate wake-up failures when the second monitor was attached.  Backlight would come on but computer was apparently off or zombified.  Win+Ctrl+Shift+B got no response.  Needed hard reset to restart.

 

The older 474.82 driver "30.0.14.7482" from Jan 2024 (the earliest one I could still find on the Nvidia site) doesn't have these issues, so that's what I'm using now.  Everything seems to be fine with it.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.