seems this is my same problem: http://bugs.archlinux.org/task/17771 On Mon, Feb 22, 2010 at 10:42 AM, Stefano Z. <mie.iscrizioni@xxxxxxxxx> wrote: > nothing, the problem still exist, also with i915.modeset=0. > > On Mon, Feb 22, 2010 at 11:30 AM, Andrea Fagiani <andfagiani@xxxxxxxxx> wrote: >> On 02/22/2010 09:04 AM, Stefano Z. wrote: >>> >>> no, my dual celeron su2300 dosen't support speedstep, it stay fixed to >>> 1.2ghz >>> but i have found the problem, i think this problem have to do with KMS... >>> I have istalled kernel26 2.6.31.6-1 and the problem disappered but >>> obviously >>> this is not the solution i want ;-) >>> If i install 2.6.32+ kernel the problem reappear. >>> Another thing that happens is that the cpu(s) Temperature with kernels >>> >>>> >>>> 2.6.31 stay >>>> >>> >>> about on 53+C while with kernel<2.6.32 stays on 42C... >>> >>> >>> >>> On Mon, Feb 22, 2010 at 9:43 AM, Andrea Fagiani<andfagiani@xxxxxxxxx> >>> wrote: >>> >>>> >>>> On 02/22/2010 04:53 AM, Brendan Long wrote: >>>> >>>>> >>>>> On 02/21/2010 04:55 PM, Xavier Chantry wrote: >>>>> >>>>> >>>>>> >>>>>> On Mon, Feb 22, 2010 at 12:42 AM, Stefano Z.<mie.iscrizioni@xxxxxxxxx> >>>>>> wrote: >>>>>> >>>>>> >>>>>> >>>>>>> >>>>>>> hi >>>>>>> >>>>>>> i've bought a new notebook (hp pavilion dm1-1150sl) and installed >>>>>>> archlinux. >>>>>>> i have see a strange thing with powertop, i'm running the vanilla arch >>>>>>> kernel26, >>>>>>> and i have see this behaviour: >>>>>>> Cn Avg residency P-states (frequencies) >>>>>>> C0 (cpu occupata) (31,6%) >>>>>>> C0 0,0ms ( 0,0%) >>>>>>> C1 mwait 0,1ms ( 0,7%) >>>>>>> C4 mwait 0,0ms (67,8%) >>>>>>> Wakeups-from-idle per second : 31483,5 interval: 10,0s >>>>>>> --- >>>>>>> as you can see, i have a LOT of wakeups per seconds very low c1 states >>>>>>> lot of c0 and c4 states, >>>>>>> a wattmeter tell me that archlinux consume about 25/26watt >>>>>>> Then i have boot a live ubuntu distro and see this: >>>>>>> Cn permanenza media P-state (frequenze) >>>>>>> C0 (cpu occupata) ( 0,6%) >>>>>>> polling 0,0 ms ( 0,0%) >>>>>>> C1 mwait 26,7 ms (68,6%) >>>>>>> C4 mwait 1,2 ms (30,8%) >>>>>>> Wakeup-da-idle al secondo: 281,3 intervallo: 15,0s >>>>>>> --- >>>>>>> as you can see the wakeups are a LOT lower than on arch and we have >>>>>>> lot of c1 and c4 state, >>>>>>> power consumption is about 20W, the same that i have with win7 (about >>>>>>> 18/20w). >>>>>>> For meaning about cX state see here: >>>>>>> http://www.lesswatts.org/projects/powertop/powertop.php >>>>>>> >>>>>>> thanks! >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> You didn't give enough information so we will need to check the basis : >>>>>> - which cpufreq driver and governor are you using in both cases (check >>>>>> cpufreq-info) >>>>>> - what processes does powertop show as causes for wakeups ? >>>>>> - what processes does top show in term of cpu usage ? >>>>>> >>>>>> Here is what I got in the last few minutes when i was writing this : >>>>>> C4 mwait 3.4ms (92.5%) 800 Mhz 98.0% >>>>>> Wakeups-from-idle per second : 279.4 interval: 10.0s >>>>>> >>>>>> I have a core 2 duo with acpi-cpufreq loaded and conservative governor. >>>>>> $ grep cpufreq /etc/rc.conf >>>>>> MODULES=(acpi-cpufreq) >>>>>> DAEMONS=(syslog-ng net-profiles crond dbus hal alsa cpufreq >>>>>> storage-fixup) >>>>>> $ grep governor /etc/conf.d/cpufreq >>>>>> # valid governors: >>>>>> governor="conservative" >>>>>> >>>>>> >>>>>> >>>>> >>>>> They may just not have cpu-freq-utils installed maybe? I'm using >>>>> laptop-mode-tools with compiz and GNOME running (but not doing anything) >>>>> and it's saying 99.2% C4, 0.8% C0. This is with another Core2 and >>>>> laptop-mode is set to use the powersave governor on battery (which is >>>>> how I tested). When I plug it in, it jumps up to 25%, but I don't really >>>>> care how active the processor is when it's on battery. >>>>> >>>>> >>>>> >>>> >>>> Be sure to have cpu-freq-utils installed, as well as loading the right >>>> modules (acpi-cpufreq, cpufreq_ondemand, if you plan on using the same >>>> governor as ubuntu does), and add `cpufreq` to your DAEMONS array in >>>> rc.conf. >>>> On my system, with laptop-mode-tools the powertop output is very similar >>>> to >>>> what Brendan said. Also, the 31k+ wakeups definitely mean there's some >>>> issue >>>> on your config. >>>> >>>> >>> >>> >> >> If you think it's KMS causing problems, try adding `nomodeset` to your >> kernel boot line and see what happens. >> >
