On Saturday 26 June 2004 18:37, Ludwig Meyerhoff wrote: > Hallo! > > I have a VIA C3 (Ezra) processor. It is very nice for "normal" > applications, as it takes only a few watt. > > I have a problem with the ACPI support of the kernel ... > While 2.4.20 recognizes the processor to support C1 and C2 states, the > 2.4.26 does not, as the 2.6.6 does not also. > > AFAIK the ACPI support has been rewritten for the 2.6 kernel and > backported to 2.4 in 2.4.23 or something ... > > Now: does anyone know how I can achieve full ACPI support for my > processor in a more recent kernel than 2.4.20? In special I would like > to use frequency scaling/throttling, as most of the time my small > computer does nothing. > > > > Saluti! > > Ludwig
You might want to check wether the newer code regards the ACPI BIOS as being too old. I have various machine which disable ACPI support because of old BIOS, but on all of them acpi=force as a kernel option turns it back on with no obvious bad side effects. However this should be obvious by reading /var/log/dmesg, quite early on there should be a message saying that this is necessary. David -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]