On Sun, Feb 02, 2025 at 11:05:15PM +0100, Darth wrote: > On 02. 02. 2025. 08:02, Mike Larkin wrote: > > On Sat, Feb 01, 2025 at 03:47:39PM +0100, Darth wrote: > > > Hello. > > > > > > dmesg here: https://clbin.com/ZVk9N > > > > > > I have a clean OpenBSD 7.6 install on my ThinkPad T580. 8th gen i5 CPU, > > > 16GB > > > RAM, NVMe drive. > > > I did a syspatch after installation. > > > > > > When I do a fresh power-on boot I noticed my system is running extremely > > > slow. Literally everything is running slow, even pressing enter in the > > > text > > > console. top -S is showing "acpi0" command to be utilizing 85% of the CPU, > > > but in terms of core usage it appears to be maxing out core zero and not > > > touch the three other ones. Also the laptop fan is running at high speed > > > and > > > blowing hot air so the battery life is poor. > > > > > > What I noticed is that if I do a reboot (so not a power on boot from cold) > > > then the problem does not manifest at all. Laptop fan is silent, all cores > > > are properly idle and the whole system is very responsive. However, if I > > > then close the lid of the laptop apmd puts the computer to sleep and upon > > > waking up the acpi0 issue manifests again so I have to reboot again to get > > > rid of the problem. > > > > > > I tried to disabling a lot of things in BIOS but nothing helped. BIOS is > > > up > > > to date, I flashed it a couple of months ago. > > > > > > In dmesg I cannot see a problem, but I have attached it above as a link. > > > > > > Please advise how do I proceed with troubleshooting this. > > > > > > > Search the lists, this has been reported and the fix described dozens of > > times. > > > > -ml > > Thank you. Turns out the fix was to disable Thunderbolt in the BIOS/UEFI. I > have been testing it for the whole day and I can no longer trigger the > issue. >
Exactly, glad you found it. Teach a man to fish ... -ml
