Comment 7 for bug 1983815

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Daniel van Vugt (vanvugt) wrote : Re: no detection of the hdmi display moinitor

No problem. It's likely that legacy KMS is still using some atomic KMS code in the kernel so the crash would keep happening...

If that's really the cause of this bug then the solution will be to try a newer kernel like:
  https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2022-08-06/amd64/
or
  https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.19/amd64/

If however the i915 crash is not the cause of the black screen (like if the HDMI port is wired to the Nvidia GPU) then we might be waiting for an Nvidia driver fix.