Bug ID 1176757
Summary Since 5.3.18-lp152.41 Boot process hangs at "fb0: switchting to amdgpudrmfb from EFI VGA"
Classification openSUSE
Product openSUSE Distribution
Version Leap 15.2
Hardware x86-64
OS openSUSE Leap 15.2
Status NEW
Severity Critical
Priority P5 - None
Component X.Org
Assignee gfx-bugs@suse.de
Reporter lx@stoneshire.de
QA Contact gfx-bugs@suse.de
Found By ---
Blocker ---

User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:80.0) Gecko/20100101
Firefox/80.0
Build Identifier: 

After the kernel update from 5.3.18-lp152.36-default to 5.3.18-lp152.41-default
my system is unable to boot. The system hangs after printing "fb0: switchting
to amdgpudrmfb from EFI VGA" and is not able to boot any further.

When using "Advanced boot options" and booting via the older kernel, everything
works as expected and the system boots up without hanging.

Reproducible: Always

Steps to Reproduce:
1. Have AMD RX-5700 graphics card
2. Upgrade to Leap 15.2 to kernel 5.3.18-lp152.41-default
3. Try to boot
Actual Results:  
Boot hangs with blinking cursor in the left upper edge.
When booting up without splash-screen the message "fb0: switchting to
amdgpudrmfb from EFI VGA" is seen as the last line.

Expected Results:  
After GRUB, boot up normally and log in via graphical login manager

I had the AMD GPU driver version 20.30 installed.
Uninstalling it (via booting the older, working kernel) did not change the
(faulty) boot behaviour with the new kernel.


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