Hi,
First, thanks very much for the reply and patch, however it turned out
that toggling legacy settings in the BIOS fixed the problem.
For anyone else who ends up with the same problem the setting is:
Advanced > Secure Boot Configuration > and set legacy support to disable
I had originally turned on legacy support to boot from the install USB,
but then just left it on after completing the install.
If it's important or useful to know that with the patch applied it
noted that VBIOS was loaded from VFCT
Thanks once again
On Thu, 10 Feb 2022, Jonathan Gray wrote:
There are quite a few ways to get a video bios in amdgpu.
On a comparable machine (thinkpad t14 gen 1 amd) booted via uefi it
is found in the VFCT ACPI table, but that doesn't show in the acpi
tables in your mail.
Does this patch to limit the size of the shadow region searched
change anything?
If there is an option to toggle CSM/bios support in the system firmware
that would also be worth trying.
