Heh... this BIOS have option to disabled control of CPU speed... and it was on by default.
All works well now. [ 122.775236] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ processors (2 cpu cores) (version 2.20.00) [ 122.774876] powernow-k8: 0 : fid 0xe (2200 MHz), vid 0x8 [ 122.774881] powernow-k8: 1 : fid 0xc (2000 MHz), vid 0xa [ 122.774882] powernow-k8: 2 : fid 0xa (1800 MHz), vid 0xc [ 122.774884] powernow-k8: 3 : fid 0x2 (1000 MHz), vid 0x12 ** Changed in: linux (Ubuntu) Status: New => Invalid -- can not use powernow_k8 and cpu freq dont work on amd 64 k8 https://bugs.launchpad.net/bugs/240018 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs