Comment # 18 on bug 1233134 from Chenzi Cao

I reproduced the same issue with my laptop: Leap 15.5, AMD Ryzen 7 PRO 5850U:

After installed kernel-default version 5.14.21-150500.55.86 on my openSUSE 15.5
desktop, the system hangs in early boot with no video signal. 

> I'm building two test SP5 test kernels in OBS home:tiwai:bsc1233134 and
> home:tiwai:bsc1233134-revert repos.  The former is with the patch
> correction, and the latter is the drop of the whole patch.
> 
>   https://download.opensuse.org/repositories/home:/tiwai:/bsc1233134/pool/
>

I tested this on my laptop: 
Steps:
- download the kernel-default-5.14.21-150500.2.1.gc4d3cf0.x86_64.rpm
- rpm -Uvh kernel-default-5.14.21-150500.2.1.gc4d3cf0.x86_64.rpm --force
--nodeps
- reboot

then observed error:

Loading Linux 5.14.21-150500.2.gc4d3cf0-default ...
error: ../../grub-core/kern/efi/sb.c:183:bad shim signature.
Loading initial ramdisk ...
error: ../../grub-core/loader/i386/efi/linux.c:207:you need to load the kernel
first.

Then I turn the secure boot off from BIOS, and reboot, then it could boot. But
after boot, my laotop can not connect to wifi, there's no wifi adapter.