I can confirm this for Karmic x64 using Phenom X4 925 on GA-MA78G-DS3H. I upgraded my system to this configuration and wondered the cpu frequency stays for 800Mhz while running prime95 with 4 load threads.
Stopping powernowd immediately raised frequencies to 2800Mhz (as expected). Starting again lowered frequencies to 800Mhz again. Though the 4 power levels are detected afais correctly: $ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 2800000 2100000 1600000 800000 And for short time periods one can see the cpu frequencies on single cpu increases to 2800Mhz, too. But with prime95 running I would expect highest frequency all the time. Searching available packages a bit I found the package powersaved to replace powernowd. After installation of this cpu frequencies now behave as expected. I'm not sure if the powernowd was installed by default - it might have happened that it was installed on my request (while looking for hardware sensors support). -- Powernowd does not scale my C2D E6550 higher, even with 100% load https://bugs.launchpad.net/bugs/223361 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
