I had a kernel panic and am trying to find some beginner level help for that and possibly updating BIOS to help fix it. Linux Forums, while trying to be helpful are assuming I know anything and I'm just getting in way over my head. Suggestions are either so complicated and vague I can't follow them, or merely saying why those suggestions won't work. It takes me hours of research to try and understand how to make every command work. I'm feeling desperate and freaked out my work laptop is going to break. I could just be flipping out over nothing but I don't understand what is going on.
I have a Legion Pro 5 16ARX8 - Type 82WM Running Linux mint.
Here's an example of errors messages I'm getting in dmesg:
[ 6.035147] amdgpu 0000:05:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data [ 10.042930] amdgpu 0000:05:00.0: [drm] *ERROR* dc_dmub_srv_log_diagnostic_data: DMCUB error - collecting diagnostic data [ 0.276297] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.PB2], AE_NOT_FOUND (20251212/dswload2-162) [ 0.276304] ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20251212/psobject-220)
Any help is appreciated.
UPDATE: Got the laptop cleaned and got 4 passes on memtest. The tech said, the 3 years of cat hair and dust was likely the culprit in the Kernel panic during a large file copy paste. I will be getting it professionally cleaned regularly and will learn how to copy/paste 400 gb of data more responsibly in the future. Thankyou everyone who lent a hand, you helped during a very stressful few days.
ACPI errors are completely normal, most motherboards don't expose all the information Linux wants, just ignore them. Never seen the DMCUB error though, but as other users have said, that's not the kernel panic, just a (likely) unrelated error message that may or may not be significant. From a quick search, the error is a bug in recent kernels related to AMD GPUs, see e.g. https://www.reddit.com/r/archlinux/comments/1wetjg6/amdgpu_dmcub_error_fixed/
Edit: https://community.frame.work/t/system-gets-really-slow/61854/2 Try adding
amdgpu.dcdebugmask=0x10to the kernel boot parameters in/etc/default/grubOnly because I had ALOT of trouble editing fstab recently, I want to confirm if I am using the GUI instead of terminal that I right click the grub file, open as root, and add the line at the end and save correct? And then I assume I reboot, or is there a terminal command that refreshes? Just want to be clear as I get nervous with this kind of thing.
Open
/etc/default/grubin the editor of your choice, GUI is fine.Look for the line that starts with
GRUB_CMDLINE_LINUX="...", and add the suggested change to the end of that line, but within the quotes. SaveThen in a terminal,
sudo update-grub.