Re: CPU frequency scaling on AMD64 laptop
Hi, Thanks for useful advices, it was enough to remove cpufreq and start to use powernowd. The problem was in my ACPI, that does not work properly yet, but powernowd knows how to cope with it. It just needs powernow-k8 module loaded. CPU scaling is running, the only little thing is that it can tune frequency just between 800 and 2200, so the ventilator is still running (maybe Linux works more han Windows that are able to go lower). Do you think that there could be any possibility to make my ACPI working. I don't know what to do precisely. I turned on ACPI debugging in kernel, but I don't know how to understand it. Thanks Luk Oliva -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: CPU frequency scaling on AMD64 laptop
You might have a BIOS bug that you can solve with a BIOS update. Other than that, I think you are going to have to troubleshoot the ACPI code in the kernel. On Wed, 2005-02-16 at 21:23 +0100, Luk Oliva wrote: Hi, Thanks for useful advices, it was enough to remove cpufreq and start to use powernowd. The problem was in my ACPI, that does not work properly yet, but powernowd knows how to cope with it. It just needs powernow-k8 module loaded. CPU scaling is running, the only little thing is that it can tune frequency just between 800 and 2200, so the ventilator is still running (maybe Linux works more han Windows that are able to go lower). Do you think that there could be any possibility to make my ACPI working. I don't know what to do precisely. I turned on ACPI debugging in kernel, but I don't know how to understand it. Thanks Luk Oliva -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: CPU frequency scaling on AMD64 laptop
I've seen several things cause this. Every BIOS is different, but you generally have to enable both Cool-n-Quiet and ACPI 2.0. My BIOS (a8v), for instance, had ACPI 2.0 disabled by default for some reason, and nothing complains when you turn CnQ on without it - it just doesn't work. Then the kernel itself has to support ACPI; you have to turn on the right parts, but it looks like you have. Beyond that... you know how laptops are. :( On Sun, 13 Feb 2005, [iso-8859-2] Luk Oliva wrote: Hi, I have a AMD64 Acer notebook and I can not make the cpufreq, powernowd or cpudyn make working. The problem is that it seems not to have a correct cpufreq interface. I tried to load modules acpi-cpufreq, but it returns me thet device does not exist. I tried to recompile the last kernel (2.6.11-rc3), because I read somewhere, that problem is in kernel, but no success. As I read on AMD pages, the processor should support CPU frequency scaling. Did anyone succeed in running it or it is just my problem? I also tried to search my notebook on linux-compatibility, but the problem of ACPI and cpufreq was not closely described here, although the notebook was there considered to be nearly all right. I am running Debian Sarge sid on it and it is Acer Aspire 1524. I would be grateful for any comment. Lukas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
CPU frequency scaling on AMD64 laptop
Hi, I have a AMD64 Acer notebook and I can not make the cpufreq, powernowd or cpudyn make working. The problem is that it seems not to have a correct cpufreq interface. I tried to load modules acpi-cpufreq, but it returns me thet device does not exist. I tried to recompile the last kernel (2.6.11-rc3), because I read somewhere, that problem is in kernel, but no success. As I read on AMD pages, the processor should support CPU frequency scaling. Did anyone succeed in running it or it is just my problem? I also tried to search my notebook on linux-compatibility, but the problem of ACPI and cpufreq was not closely described here, although the notebook was there considered to be nearly all right. I am running Debian Sarge sid on it and it is Acer Aspire 1524. I would be grateful for any comment. Lukas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: CPU frequency scaling on AMD64 laptop
Some of the amd64 laptops require that you use ACPI to detect the available frequency states. Does your kernel have the options CONFIG_X86_POWERNOW_K8 CONFIG_X86_POWERNOW_K8_ACPI set? If not, try setting those and see if it helps. Good luck! -Ted On Sunday 13 February 2005 09:34, Luk Oliva wrote: Hi, I have a AMD64 Acer notebook and I can not make the cpufreq, powernowd or cpudyn make working. The problem is that it seems not to have a correct cpufreq interface. I tried to load modules acpi-cpufreq, but it returns me thet device does not exist. I tried to recompile the last kernel (2.6.11-rc3), because I read somewhere, that problem is in kernel, but no success. As I read on AMD pages, the processor should support CPU frequency scaling. Did anyone succeed in running it or it is just my problem? I also tried to search my notebook on linux-compatibility, but the problem of ACPI and cpufreq was not closely described here, although the notebook was there considered to be nearly all right. I am running Debian Sarge sid on it and it is Acer Aspire 1524. I would be grateful for any comment. Lukas
