Yes, this is quite reminicent of my experience with the fans. I thought it might be lag on stuff that I did earlier but I'm not sure. Nicolas has suggested that the SMC uses additional temperature monitors that are not exposed by the applesmc module. Perhaps the machine is just somehow heating up in the background and so every ten minutes the fans come on to cool it down until it cools down enough and then they turn off until it heats up again in another 10 min, etc... There are two assumptions required for this scenario. First, there is some other part of the machine that's heating up that somehow doesn't result in the existing temperature sensors showing anything and that somehow in OS X this part of the machine does not heat up presumably because of better power management. Second, it assumes the fans are entirely driven by the hardware SMC controller and not by anything the smc module is (or isn't) doing. Somehow it seems a lot more concievable to me that the SMC module itself is doing something wrong but I haven't looked at it at all so I'm really just guessing here.
If I have some time later I'll try to write a script to poll temperature/fan/load reading every minute for an hour or two when the machine is completely idle and plot it out. Looking forward to your driver when its done. thanks, Sheer On 3/29/07, Sven Anders <[EMAIL PROTECTED]> wrote: > Sheer El-Showk schrieb: > > Hi Sven, > > > > Thanks for the detailed info. Its good to hear that someone with a > > C2D has a quiet machine. Could you also post your kernel config? I > > don't have most of those modules loaded but I'm using someone elses > > kernel config that they posted and I'm guessing most of those modules > > are aleady compiled in. > > I attached my config... > > > Another thing I should point out is that I use Beryl/Xgl which > > probably put a lots more load on the GPU. I think I _still_ had a > > very active fan when I switched off Beryl but I haven't tested it > > well. > > Maybe it's the GPU... I'm not running Beryl or compiz and the GPU has very > little to do... > > Today I recognized the following phenomenon (for the first time): > > Every 10-15 minutes, the fans power up over 5000 RPM and then > went down to 2000 again. This happens with no CPU load at all > (0.01 over the last 10 minutes and 1Ghz on both cores). > > > > Sven, two more questions: does your trackpad work well and how is > > suspend? I switched to 2.6.20 hoping the track pad would work better > > but its still a little jumpy (might just be my settings) and I sort of > > got suspend to ram working but the machine made a weird whiny sound > > after waking up from suspend. > > The touchpad drives me crazy, so I'm writing a new driver (based on the old > one), but it's not working completly yet and I'm having trouble after > reloading the driver (it isn't used by the synaptic X driver any more)... > I will post it on this list, if I have an beta version available. > > Hadn't time to try suspend2ram yet, so I cannot give any experience here... > > > Regards > Sven > -- > Sven Anders <[EMAIL PROTECTED]> () Ascii Ribbon Campaign > /\ Support plain text e-mail > ANDURAS service solutions AG > Innstraße 71 - 94036 Passau - Germany > Web: www.anduras.de - Tel: +49 (0)851-4 90 50-0 - Fax: +49 (0)851-4 90 50-55 > > Rechtsform: Aktiengesellschaft - Sitz: Passau - Amtsgericht Passau HRB 6032 > Mitglieder des Vorstands: Sven Anders, Marcus Junker > Vorsitzender des Aufsichtsrats: Dipl. Kfm. Thomas Träger > > > [EMAIL PROTECTED]:/etc# date; cat > /sys/bus/platform/devices/applesmc/temperature_* > /sys/bus/platform/devices/applesmc/fan?_actual_speed > Do 29. Mär 14:42:29 CEST 2007 > 12800 > 6575 > 5600 > 5800 > 3500 > 4525 > cat: /sys/bus/platform/devices/applesmc/temperature_6: Input/output error > 2001 > 2002 > > [EMAIL PROTECTED]:/etc# date; cat > /sys/bus/platform/devices/applesmc/temperature_* > /sys/bus/platform/devices/applesmc/fan?_actual_speed > Do 29. Mär 14:50:34 CEST 2007 > 12800 > 5375 > 4900 > 5300 > 3450 > 4275 > cat: /sys/bus/platform/devices/applesmc/temperature_6: Input/output error > 5320 > 5317 > > [EMAIL PROTECTED]:/etc# date; cat > /sys/bus/platform/devices/applesmc/temperature_* > /sys/bus/platform/devices/applesmc/fan?_actual_speed > Do 29. Mär 14:52:39 CEST 2007 > 12800 > 5750 > 4900 > 5300 > 3400 > 4200 > cat: /sys/bus/platform/devices/applesmc/temperature_6: Input/output error > 1999 > 1995 > > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Mactel-linux-users mailing list Mactel-linux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mactel-linux-users
