Serge Gebhardt <[EMAIL PROTECTED]> writes: > On Mon, 17 Nov 2003 23:44:00 -0500 > Mike Phillips <[EMAIL PROTECTED]> wrote: > > Hi Mike, > >> > does anyone get ACPI working on the IBM Thinkpad T30? I tried quite >> > some patches, kernel 2.4.x, 2.5.x and up to 2.6-test5, without >> > success. I also upgraded the BIOS to fix the ECDT bug. >> > >> >> I'm assuming you've got the 2.04 bios ? 2.6.0-test9 works fine. I >> worked with the ACPI kernel folks to resolve all these issues (from >> non-working, through panics and deadlocks) on the T30. > > Thanks for your cooperation with the kernel guys. I gave test9 a try, > but speedstep is still not working, ACPI loads without errors > though.
(I'm working on an ThinkPad X31, so some of this may not be accurate, but I think it is general enough information.) Do you have cpufreqd or cpudynd running? (Maybe another possibility is powernowd, but I haven't tried this one)? If not, both are in Debian (at least in testing). Try one. In order to test if it is working, I would suggest cpudynd because if there isn't a load on the CPU, it drops the speed to the lowest possible value. cat /proc/cpuinfo with cpudynd running and it should show a number smaller than the speed of your CPU. > > I find this line in dmesg quite interesting: > cpufreq: No CPUs supporting ACPI performance management found. > > But I enabled nearly all the cpufreq options, except those I know I > don't have (AMD, P3, ...). > > Content of /proc/acpi/processor/CPU/info: > processor id: 0 > acpi id: 1 > bus mastering control: yes > power management: yes > throttling control: yes > performance management: no <----- (!!) > limit interface: yes This one (ACPI performance management) will switch to yes if you drop speedstep_centrino (or whatever driver you are using) and modprobe -a acpi (obviously you need to build it first, and it may not be in the default set of choices). I have the file acpi.ko in the directory /lib/modules/linux-2.6.0-test9/kernel/arch/i386/cpu/. I believe this allows ACPI to control CPU frequency and you should see a yes up there (cat /proc/acpi/process/CPU/info). But I really like cpudynd. I hope this helps. Brian -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
