[Regression 460 series] Black screen on boot: nvidia-modeset: ERROR: GPU:0: Failed to allocate display engine core DMA push buffer

Thanks, I will give CSM a try later then (disabling SecureBoot means unregistering my signing keys, so I am reluctant there).

For me, the issue is new with the 460 drivers and to my memory never showed up before even though I have been following new releases (also beta) for years, so in my case, it is not recurring.