Since I didn't have any news. I decided to have a look at the kernel code. I
compared arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c in 2.6.20 and 2.6.22
and I saw that my cpu's code ("CPU_DOTHAN_C0 / SONOMA") was removed. I wrote a
patch to add it back and now cpu frequency scaling is working again. I tested
my patch on a 2.6.23.1 kernel.Could someone have a look and see why this code was removed? ** Attachment added: "Patch to restore my cpu frequency scaling" http://launchpadlibrarian.net/9972353/sonoma2.patch ** Description changed: I noticed that my cpu frequency scaling was broken recently. This is - annoying because I have a 1.96Ghz and instead of being stuck at this + annoying because I have a 1.86Ghz and instead of being stuck at this speed, it is stuck at minimum speed (800 Mhz). I saw this in my dmesg (may be the problem): ACPI Error (utglobal-0126): Unknown exception code: 0xFFFFFFFE [20070126] [ 36.836000] ACPI Exception (video-1644): UNKNOWN_STATUS_CODE, Cant attach device [20070126] [ 36.836000] ACPI: Video Device [PEG] (multi-head: yes rom: no post: no) Here is for powernowd: [EMAIL PROTECTED]:/home/chris# /etc/init.d/powernowd restart * Stopping powernowd: [ OK ] * Starting powernowd... /etc/init.d/powernowd: 156: cannot create /sys/devices/system/cpu/cpu0//cpufreq/scaling_governor: Directory nonexistent * CPU frequency scaling not supported This used to work very well... I will attach my dmesg output here. Please tell me what information I should give you. -- [GUTSY] cpu freq scaling not working anymore https://bugs.launchpad.net/bugs/132271 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
