On Tuesday, July 31, 2012 09:51:06 Jan Engelhardt wrote:
Are you sure that the hardware is taking care of this or should the kernel instruct the CPU to do so ?
When was the last time you were given a device that melted away, "per design", rather than due to "cheap" Asian hardware, without software instruction?
Well it is one of the first Intel I5 dual-cores with hyperthreading. But as indicated if I leave the whole throttling over to the CPU's and don't do any dynamic frequency scaling (through the acpi_cpufreq kernel module), then everything works as expected. If I load the acpi_cpufreq module, then the CPU's are overheating within seconds. The difference is quite big. The same action on a kernel without acpi_cpufreq gives me 100% load on the 4 cores and the temperature remains below 70 degrees. Loading the acpi_cpufreq, I get the same 100% load on all 4 cores, but the temperature rises to 101 degrees within about 5 seconds. I know that Lenovo is an Asian company, but it should still be based on old big blue design. So either acpi_cpufreq found a little hole in the CPU design or it is able to block the automatic thermal throttling done by t he CPU. Raymond -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org