Video Output is constantly flickering with Fedora 42

Ask Fedora
1

I upgraded my fedora 41 test bench to 42 today. Ever since then, the display is just constantly flickering on and off and never shows the screen and isn’t usable. I’ve verified that the AMDGPU drivers are installed and no other drivers are installed to my knowledge. Now sometimes, I can reinstall the amdgpu drivers and reboot and it’ll work but not all the time. I also messed with the variable refresh rate and disabled it and rebooted and it seemed to work. However, after rebooting again, it is back to flashing.

Anyone else having this issue or know of a fix I can do so that it won’t keep doing this? I can ssh into it with no issues. Trying to configure Remote Desktop with something other than gnome since I can’t get the change of password to stick to see if it work using RDP since it doesn’t need to be connected to a monitor.

2

Is there some options to update while using the command below?

fwupdmgr get-devices
3

I don’t see anything that can be updated using that command. Here is part of the output that shows the CPU and GPU.

Default string AM02
│
├─AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx:
│ │ Device ID: 4bde70ba4e39b28f9eab1628f9dd6e6244c03027
│ │ Current version: 0x08108109
│ │ Vendor: Advanced Micro Devices, Inc.
│ │ GUIDs: 38cd08d3-c885-5730-bff8-fdf71774a4a2 ← CPUID\PRO_0&FAM_17&MOD_18
│ │ cbe5ceff-2b79-5935-9e79-ad728587b62f ← CPUID\PRO_0&FAM_17&MOD_18&STP_1
│ │ Device Flags: • Internal device
│ │
│ ├─AMD Radeon Vega 10 Graphics:
│ │ │ Device ID: 3743975ad7f64f8d6575a9ae49fb3a8856fe186f
│ │ │ Summary: PICASSO Generic VBIOS
│ │ │ Current version: 115
│ │ │ Vendor: Advanced Micro Devices, Inc. [AMD/ATI] (PCI:0x1002)
│ │ │ GUID: 7395c969-f756-5077-8243-18a4ec584050 ← AMD\113-PICASS
│ │ │ Device Flags: • Internal device

4

Not really sure what happened but so far today, i’ve rebooted it twice and it seems to be working fine. I did run system updates today to make sure I’m at the latest. Will continue messing with it to see if it does it again or if it’s truly fixed.

5

Yes, if you use the gnome-software app it also checks the bios. So same thing as you can do by hand in the terminal with fwupdmgr

When booting system recognizes new hardware & drivers. Being passion and observing is good strategy.

Thanks for the feedback. Keep informing us.