linux kernel 5.10.x to 5.11.x : boot FB switch VT is black after EFI VGA FB changed to CPU FB

linux-kernel@vger.kernel.org previous kernel 5.10... current kernel 5.11.4 After moving to 5.11, can no longer switch to VT's.  The boot sequence shows as far as fb0: switching to inteldrmfb from EFI VGA ... Console: switching to colour dummy device 80x25 and then goes black and unrespons

4.15.6 : .config does not find boot partition

The default .config created from make menuconfig builds fine and boots fine. The config at the below URL times out trying to boot the root partition. Then ls /dev does not show the disks This is a UEFI system that also boots fine with the standard debian kernel install. config at https://pasteb

kernel 2.6.13 hangs / freezes with nvidia kernel module on switch to virtual console (also 2.6.12)

kernel 2.6.13 hangs / freezes with nvidia kernel module on switch to virtual console Running Debian testing and stable and built the kernel with the attached config. Then the NVidia installer was run. Everything boots and runs fine. X and Gnome come up and run. Switching to a Virtual Console l