Upgrading from linux kernel 5.17.8 to 5.17.9 on a self-configured/self-compiled unaltered upstream kernel led to my amd64 system no longer booting. The last thing I saw on my screen was: 'fb0: switching to i915drmfb from VESA FGA' However, booting from a distribution kernel, it was not difficult to determine that that succeeded because it was setting both CONFIG_SYSFB_SIMPLEFB and CONFIG_DRM_SIMPLEDRM, neither of which were present in my failing config: adding them fixed the problem. I am filing this in case there is either a/ a bug in the changed 5.17.9 code; or b/ the changes there have exposed a bug elsewhere, possibly in the fb infrastructure as a whole. or else in a particular fb driver. Of course, it might be that CONFIG_SYSFB_SIMPLEFB and CONFIG_DRM_SIMPLEDRM ought generally to be set. However, that was not previously necessary in my case.