Re: [gentoo-amd64] fan control

[Florian Philipp]

Am 10.03.2012 21:28, schrieb Mansour Al Akeel:
> My laptop started getting hot recently. There is no dust issue. The
> fan just doesn't seem to start at all.
> I tried to use lm_sensors and sensor-detect, but it's not detecting
> any sensors. I tried to recompile the kernel, enabling
> all the sensors but no luck. using acpi woks in reporting some values:
>
> acpi -V
> Adapter 0: on-line
> Thermal 0: ok, 58.0 degrees C
> Thermal 0: trip point 0 switches to mode critical at temperature 103.0 degrees C
> Thermal 0: trip point 1 switches to mode passive at temperature 105.0 degrees C
> Cooling 0: LCD 0 of 10
> Cooling 1: Processor 0 of 7
> Cooling 2: Processor 0 of 7
> Cooling 3: Processor 0 of 7
> Cooling 4: Processor 0 of 7
>
>  lspci
> 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor
> Family DRAM Controller (rev 09)
> 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation
> Core Processor Family Integrated Graphics Controller (rev 09)
> 00:16.0 Communication controller: Intel Corporation Cougar Point HECI
> Controller #1 (rev 04)
> 00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced
> Host Controller #2 (rev 05)
> 00:1b.0 Audio device: Intel Corporation Cougar Point High Definition
> Audio Controller (rev 05)
> 00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root
> Port 1 (rev b5)
> 00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root
> Port 2 (rev b5)
> 00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root
> Port 4 (rev b5)
> 00:1c.5 PCI bridge: Intel Corporation Cougar Point PCI Express Root
> Port 6 (rev b5)
> 00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced
> Host Controller #1 (rev 05)
> 00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC
> Controller (rev 05)
> 00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA
> AHCI Controller (rev 05)
> 00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 05)
> 02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 (rev 34)
> 03:00.0 USB Controller: Fresco Logic FL1000G USB 3.0 Host Controller (rev 04)
> 04:00.0 Ethernet controller: Attansic Technology Corp. AR8151 v2.0
> Gigabit Ethernet (rev c0)
>
> Linux localhost 3.1.10-gentoo-r1asus #1 SMP PREEMPT Sat Mar 3 04:46:53
> EST 2012 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel
> GNU/Linux
>
> laptop is Asus U46E.
> I am not very familiar with the kernel config related to thermal, so I
> don't know exactly what other info I need to provide. If I am missing
> something, please ask.
>
> lsmod
> Module                  Size  Used by
> snd_seq_oss            30140  0
> snd_seq_midi_event      5180  1 snd_seq_oss
> snd_seq                51076  4 snd_seq_oss,snd_seq_midi_event
> snd_seq_device          5109  2 snd_seq_oss,snd_seq
> snd_pcm_oss            41686  0
> snd_mixer_oss          14706  1 snd_pcm_oss
> cryptd                  7437  0
> aes_x86_64              7348  2
> snd_hda_codec_hdmi     24224  1
> uvcvideo               60957  0
> snd_hda_codec_realtek   305650  1
> aes_generic            25946  1 aes_x86_64
> videodev               80368  1 uvcvideo
> v4l2_compat_ioctl32     7844  1 videodev
> ecb                     1881  1
> btusb                  10681  0
> bluetooth             140491  1 btusb
> snd_hda_intel          23990  0
> arc4                    1282  2
> i915                  363756  3
> drm_kms_helper         24196  1 i915
> ehci_hcd               38628  0
> snd_hda_codec          80497  3
> snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
> drm                   168771  4 i915,drm_kms_helper
> i2c_i801                8470  0
> i2c_algo_bit            6472  1 i915
> iwlagn                274384  0
> usbcore               123848  3 uvcvideo,btusb,ehci_hcd
> snd_hwdep               6014  1 snd_hda_codec
> snd_pcm                69577  4
> snd_pcm_oss,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
> intel_agp              10616  1 i915
> processor              27833  4
> video                  11367  1 i915
> intel_gtt              14153  3 i915,intel_agp
> backlight               4216  1 video
> wmi                     8091  0
> snd_timer              18721  2 snd_seq,snd_pcm
> battery                 6165  0
> thermal                 8514  0
> button                  4271  1 i915
> ac                      2248  0
> agpgart                25680  3 drm,intel_agp,intel_gtt
> mac80211              184435  1 iwlagn
> snd                    57535  12
> snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
> psmouse                54209  0
> atl1c                  31135  0
> cfg80211              159080  2 iwlagn,mac80211
> soundcore               5329  1 snd
> sg                     26740  0
> snd_page_alloc          6577  2 snd_hda_intel,snd_pcm
>

I'm missing acpi-cpufreq in your module list. Is
CONFIG_X86_ACPI_CPUFREQ enabled? What CPU frequency governor is enabled
(`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor`)?

By the way, 58°C is not particularly hot. Of course, it depends on where
it is measured. For measuring it, check that you have
CONFIG_SENSORS_CORETEMP enabled.

Regards,
Florian Philipp