Since 5.3.18-lp152.41 Unable to boot: fb0 switchting to amdgpudrmfb from EFI VGA

English Install/Boot/Login
1

Hi all,

since yesterday, after I zypper up-dated to 5.4.18-lp152.41 my openSUSE Leap 15.2 installation is unable to boot.
After GRUB, only a black screen with a small _ in the upper right corner can be seen.
When I boot in Recovery-Mode, I can see the following message in the last line:

fb0: switchting to amdgpudrmfb from EFI VGA

[FONT=arial](Here is a literal screenshot I snapped of the non-functioning boot: https://i.lx-s.de/y/5f61ba96637ba.JPG[/FONT])

My graphics card is an MSI AMD RX 5700.
When selecting “Advanced Options in GRUB” and boot with openSUSE Leap 15.2, with Linux 5.3.18-lp152.36-default
everything works and the system boots up normally.

As I am just in the process of setting everything up to use Linux more often than Windows, this openSUSE-installation doesn’t see much usage currently,
the only thing I do is pretty much updating it constantly. Also, since everything works with the older kernel, I assume it’s a bug with the new one
and not something my installation/configuration is guilty off.

For now, I’ve added oldest to multiversion.kernels in /etc/zypp/zypp.conf[FONT=arial] to keep my system bootable.[/FONT]

If I can add any additional information, please tell me, as I am really new at reporting openSUSE (or Linux in general) problems, I am not yet savvy in which
information should be provided by default.

2

I also uploaded the screenshot to openSUSE-Paste: https://paste.opensuse.org/d6d08baf
and I just noticed that I wrote in the opening post “5.4.18” which should have been “5.3.18”.

I would’ve edited it, but I can’t seem to find the edit-button… :confused:

3

If you look around, there are some similar posts. And I think there’s an open bug report.

Adding “oldest” to the multversion.kernels" line was a wise move.

You got the kernel version right in the thread title, even if you were off by one in the text.

4

Debugging_boot_hang

https://forums.opensuse.org/showthread.php/539742-With-AMD-Picasso-APU-system-hangs-during-boot-with-kernel-5-6-2-(5-6-0-works

But AMD’s uninstaller forgot to delete file /etc/dracut.conf.d/amdgpu-5.6.0-1.g4de1111-default.conf which contained strings:

add_drivers+=" amdgpu"
fw_dir+=“/lib/firmware/5.6.0-1.g4de1111-default”

After removing this file I reinstalled kernels.
Now they can be loaded normally - 5.5.13 from TW and 5.6.2 from Kernel:stable repo.

Looks same as https://forums.opensuse.org/showthread.php/544342-AMD-RX-570-and-kernel-5-3-18-lp152-41-default

What version of AMDGPU All-Open and AMDGPU-Pro Driver you are using?
Version 20.30+ is needed for Leap 15.2.

5

Unfortunately, none of that that did work. The boot process always stops at fb0: switchting to amdgpudrmfb from EFI VGA

But AMD’s uninstaller forgot to delete file /etc/dracut.conf.d/amdgpu-5.6.0-1.g4de1111-default.conf which contained strings:

That didn’t happen for me. This file (or any other by that name-schema) doesn’t exist on my installation.

What version of AMDGPU All-Open and AMDGPU-Pro Driver you are using? Version 20.30+ is needed for Leap 15.2.

I was using 20.30 (this seems to be the newest available version), but after I saw the boot error I uninstalled it (via booting the old kernel).

I just tried installing it again and trying to boot up with the driver installed, but the boot-process was still hanging at fb0: switchting to amdgpudrmfb from EFI VGA
After I uninstalled it (again), no change.

Guess I have to wait for a new Kernel or is there any other place where I could report this “bug”?

6

Experienced severe problems with i915 in 2016 and a minor one with amdgpu a few weeks ago. Both were gone when switching to a current version of Tumbleweed.

7

Open a bug report:
https://en.opensuse.org/openSUSE:Submitting_bug_reports

Another option - upgrade graphics stack using “Experimental” repos (X11).
Delete proprietary driver, then install Mesa 3D drivers.
Probably kernel + firmware upgrade will help.