Fedora 40, 41 and 42 Workstation was working just fine for over a year until yesterday. I made no big changes or whatsoever but since today it will no longer boot for me. I immediately tried Fedora 43 KDE Live from USB stick and also GParted iso, but it turns out, the same is happening. No matter which mode I choose (including rescue or troubleshooting) Here are 2 videos which hopefully show the issue. I am not sure what to do now? Do you have any ideas?
Greetings @barryascott thank you for your response. It is basically the same, I recorded another video https://youtu.be/ZEZuWhceu6I - do you think this could be hardware related? I also can’t get into the console unfortunately.
I just tried the onboard GPU and it seems to advance a step further, I can log back into the my latest 42. I will dnf upgrade now and back up everything possible.
The system is stable using the onboard GPU of the motherboard ASUS ROG STRIX B650E-I via HDMI. As soon as I switch to my AMD Radeon RX 7600 XT, black screen as to be seen in the videos and the boot process doesn’t commence (both with display port and HDMI). Do you have any ideas how this is? It was running absolutely fine for months on Fedora 42 and before that using 40 and 41.
The solution was to turn off Resizable BAR in the BIOS Settings. I never turned this on, so ultimately I do not understand how this all happened in the first place.
Just FYI, this is not a proper solution. Resizable BAR is a standard feature that is required to get the best performance from modern GPUs. For this reason, it is enabled by default on all modern systems.
Your problem might be caused by a BIOS bug. Based on your screen capture, your BIOS is quite out of date. My recommendation is to update it, and check if that helps. If not, hopefully someone can help with other troubleshooting steps.
I agree and removed the solution tag. I did what you suggested and updated to the latest BIOS. I can now keep it enabled and Fedora boots just fine.
What makes me wonder is why this happened in the first place. I did not change anything in the OS and BIOS had Resize BAR enabled by default. What also made me wonder is why booting from Fedora USB, GParted USB or Ubuntu USB raised the same problem.
