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
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