The TZ4 thermal zone on all the hp compaq line nx**** and nc**** is not a temperature but the fan speed. You can see this information on the web and on hp forums. I really don't know why hp has done this.. With my nx7400 I have problems with fans only when I resume from suspend to disk and the thermal module is loaded by initramfs before resuming the system. I have also noticed that these laptops consume more energy on linux than on windows. I think that's a problem related to acpi C states. On AC I have only C1 and C2 on both cpu cores, on battery I have C1, C2 on first core and C1, C2, C3 on the second. Why there are no higher C-states? Bye 2007/1/19, Alexey Starikovskiy <alexey.y.starikovskiy@xxxxxxxxxxxxxxx>:
Did you try patches from #5534 and #7122? Pieter De Wit wrote: > Hi Luming, > > This module was build into the kernel. After make it a module and making > sure it's not loaded, I still see the problem. Here is a more detailed > problem: > > If I leave ACPI to manage the system, thermal zone TZ4 stays around 80 > C. The moment I turn on fan C318, this zone *shoots* up to 100 C and > stays there, no matter what. This fan I can't turn off again. > > Here is a cat of fans, thermal_zone status and temp. > > status: on > status: off > status: on > status: on > status: on > status: on > status: on > state: active[2] > state: ok > state: ok > state: ok > state: ok > temperature: 65 C > temperature: 61 C > temperature: 54 C > temperature: 30 C > temperature: 100 C > > This was taken during the compile of gcc. While not doing anything, the > second zone drops to 54 C (currently at 61) > > Thanks for the time, > > Pieter > > -----Original Message----- > From: Luming Yu [mailto:luming.yu@xxxxxxxxx] > Sent: 2007/01/19 10:14 > To: Pieter De Wit > Cc: linux-acpi@xxxxxxxxxxxxxxx > Subject: Re: Fan speeds on HP nc6400 and nc8430 > > Do you have psmouse module loaded ? > (i.e. CONFIG_MOUSE_PS2=m) > If yes, Please try remove it, and re-test it. > > Thanks, > Luming > > On 1/19/07, Pieter De Wit <Pieter.DeWit@xxxxxxxxxxxxx> wrote: > >> Hello List, >> >> I have noted that the fan speed on "idle" is much higher in Linux >> compared to XP. I have also noted that once fans are turned on, they >> never seem to return to the off state. I am currently using the 2.6.18 >> > > >> kernel from Gentoo (gentoo-sources-r6). I was wondering if there is a >> way I can lower the fan speed, or even assist the devs to get info >> regarding these notebooks (if any is needed). >> >> Thanks, >> >> Pieter >> "This e-mail is sent on the Terms and Conditions that can be accessed >> > by Clicking on this link http://www.vodacom.co.za/legal/email.jsp " > >> - >> To unsubscribe from this list: send the line "unsubscribe linux-acpi" >> in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo >> info at http://vger.kernel.org/majordomo-info.html >> >> > "This e-mail is sent on the Terms and Conditions that can be accessed by Clicking on this link http://www.vodacom.co.za/legal/email.jsp " > - > To unsubscribe from this list: send the line "unsubscribe linux-acpi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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