[RESOLVED] AMD Ryzen 7040 Series - Blank screen in Fedora 39 KDE beta after reboot

I did some more reading after my previous post, and these GPU resets with the “MES” error logs are indeed supposed to be fixed by the 3.03 BIOS - see comment 5 by Mario who is an AMD employee, he mentions MES specifically.

Some fixes that might be of interest - found these floating around the Framework discord server.

I have temporarily resolved both some white artifacts I was experiencing on external monitors, and my crashing sddm, with the following steps:

  • Adding kernel parameter amdgpu.sg_display=0 in /etc/default/grub and regenerating grub config ( sudo grub2-mkconfig -o "$(readlink -e /etc/grub2.conf)" )
  • Setting sddm to use x11 instead of wayland by adding the below to /etc/sddm.conf
[General]
DisplayServer=x11-user

Shouldn’t be necessary in future.

Note that adding the kernel parameter and then still letting sddm trigger the BIOS 3.02 GPU crash leaves external monitors not working. So I assume that after the crash the GPU is in a bad state of some kind.

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Just got mine and didn’t even have a working trackpad with KDE spin live environment.

Installing regular gnome fedora workstation, then installing plasma afterwards and just using gdm as display manager seems to be working perfectly so far as a workaround for me as well, I will probably just keep it this way rather than bothering to reinstall, even though I’ll never use gnome.

It seems that grubby tool is better to use in order to change everywhere not only for grub conf but also other scripts that may exist under /boot/loader/entries etc.

sudo grubby --args="amdgpu.sg_display=0" --update-kernel=ALL
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Correct for Fedora, we would want you using grubby for a more consistent experience.

My own test and experience using 3.03 BIOS and Fedora 39 KDE is here 17 days ago.

If this is happening on Fedora 39 fully updated, it would be worth filing a bug report.

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Came here from Google having similar issue on Fedora 40 Bios 3.03. In my case the built in monitor was set to a resolution not supported by KDE. I connected to an external monitor and then I was able to set the correct one. Posting just in case it helps someone else.

Molzy’s post needs to be pinned. Excellent fix to this issue.

I installed Fedora Kinoite 43 using the latest image from Fedora using Fedora Media Writer. Got the blank screen issue after rebooting following successful install. SDDM restart got me logged in and after updating to the latest Fedora via Discover the problem is now fixed. After that I was able to update the Framework firmware to the latest from January 2026 and all is well with my new Framework 13 AMD Ryzen 7040.

Thank You so much for this detailed fix to this issue.

Disappointing this is still an install issue two years down the road.