Cx states not working on Dell Inspiron 8600 (Pentium M)

[Clive Lin]

On Thu, Aug 26, 2004 at 11:42:08AM +0200, Ulrich Spoerlein wrote:
> hw.acpi.cpu.cx_supported: C1/1 C2/1 C3/85 C4/185
> hw.acpi.cpu.cx_lowest: C4
> hw.acpi.cpu.cx_usage: 0.00% 100.00% 0.00% 0.00%

/me me too.

    Ordinary IBM X31, slightly modified GENERIC kernel. My Cx state
never goes down below C2. I've heard friends with X31 under the same
situation. acpi(4) explains that C3 requires bus mastering to be
disabled, but unfortunately I can not figure out where to disable it...

    Related information:

KERNCONF        http://tongi.org/dist/CARTIER.txt
verbose dmesg   http://tongi.org/dist/dmesg.txt
ASL             http://tongi.org/dist/x31_2672_iev.asl
DSDT            http://tongi.org/dist/x31_2672_iev.dsdt
dmidecode       http://tongi.org/dist/dmidecode.txt
sysctl -a       http://tongi.org/dist/sysctl-a.txt
pciconf -lv     http://tongi.org/dist/pciconf-lv.txt

-- 
Clive Tong-I Lin <clive at tongi.org> | http://tongi.org | PGP KeyID: A008C03E