Sorry to hear none of that helped. It seems a very serious problem, and it would be useful to know if it behaves any better under linux or not.
I am still on the hunt for a bootable Linux distribution. I am in the unfortunate situation of having no CD-Rs at hand. And because it is Easter, shops are closed.
Most Linux distributions require you to run a proprietary tool from inside Windows or another Linux installation to create a bootable USB medium. I found a USB image for OpenSUSE but that failed to boot. I am continuing to hunt...
You need sysctl hw.acpi.cpu.cx_lowest="C2" instead .. that's what /etc/rc.d/power_profile adjusts when you apply or remove power. I doubt it's likely to help much given the scale of overheating.
I use the correct sysctl now, the cx_lowest value changed from C1 to C2 for all CPUs but nothing seems to have changed otherwise:
%sysctl dev.cpu | grep cx_usage dev.cpu.0.cx_usage: 100.00% 0.00% last 230us dev.cpu.1.cx_usage: 100.00% 0.00% last 216us dev.cpu.2.cx_usage: 100.00% 0.00% last 159us dev.cpu.3.cx_usage: 100.00% 0.00% last 323us dev.cpu.4.cx_usage: 100.00% 0.00% last 320us dev.cpu.5.cx_usage: 100.00% 0.00% last 357us dev.cpu.6.cx_usage: 100.00% 0.00% last 378us dev.cpu.7.cx_usage: 100.00% 0.00% last 374us
That's pretty sad. Not sure what the first two differing by only 1MHz means .. but I'm out of ideas, and my depth.
Thanks for all the tips. I will report back once I have had a chance to compare with Linux. If nothing else helps, I will call Dell again in the futile attempt to have them magically fix the issue somehow.
- Bartosz _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
