I’ve run in the same issue, see my duplicate help request (I’m sorry about making a duplicate). Today I’ve tried various bioses for my HP zbook studio G3 (Nvidia Quadro M1000M) but it didn’t help. I played around with secure boot and legacy bios modus. Nothing worked.
Added to the issue of crashing on waking from sleep I experience problems with audio over HDMI. Where my tv was able to provide audio with the 450 drivers I’m unable to have it work under the 460 drivers. Independent whether I use the On-Demand or Nvidia (Performance Mode). Neither was I able to make it work on my Intel (Power Saving Mode) although that wasn’t possible with the 450 drivers either.
As a side note my HDMI connector is linked to the Nvidia card and I needed to wait on the reverse prime to be able to use Nvidia On-Demand when using my HDMI connection instead of my internal screen. I’m not sure if this detail matters for our current issue.