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[Yuriy Vidineev <1514052@xxxxxxxxxxxxxxxxxx>]

Hello Christopher,

Unfortunately I can't do it for now:

"The problem cannot be reported:
This is not an official Ubuntu package. Please remove any third party package and try again."

I use 4.3.0-040300-generic.
Looks like simplest way to do it for me - download 16.04 daily build and test on it. I'll try it soon
BTW rmmod dell_smm_hwmon fixes problem for me

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https://bugs.launchpad.net/bugs/1514052

Title:
  erratic fan speed and little control kernel 4.2

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have just upgraded to Ubuntu 15.10 and almost immediately my CPU fan
  started speeding and slowing without good reason even when the PC is
  idle.

  I tried various things but then found that if I leave the computer off
  for a long time and let everything cool down then when I boot from
  cold the CPU fan is stable.

  To test my theory of cold start out I then ran
  sudo cpupower frequency-set -g powersave
  followed by
  sudo cpupower frequency-set -g ondemand

  The final mode is the initial mode.  Almost immediately as soon as I
  moved to powersave mode the erratic fan speed started.  It did not
  stop when I returned to ondemand.

  Temp fix for this behaviour is - go and have a cup of coffee and let
  the computer cool down when you restart: shutdown then start from
  cold.

  $ uname -a
  Linux HomeMegaUbuntu 4.2.0-17-generic #21-Ubuntu SMP Fri Oct 23 19:56:16 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  $ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 15.10
  Release:	15.10
  Codename:	wily

  $ cpupower frequency-info
  analyzing CPU 0:
    driver: acpi-cpufreq
    CPUs which run at the same hardware frequency: 0
    CPUs which need to have their frequency coordinated by software: 0
    maximum transition latency: 10.0 us.
    hardware limits: 1.20 GHz - 2.80 GHz
    available frequency steps: 2.80 GHz, 2.80 GHz, 2.67 GHz, 2.53 GHz, 2.40 GHz, 2.27 GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz, 1.33 GHz, 1.20 GHz
    available cpufreq governors: conservative, ondemand, userspace, powersave, performance
    current policy: frequency should be within 1.20 GHz and 2.80 GHz.
                    The governor "ondemand" may decide which speed to use
                    within this range.
    current CPU frequency is 1.20 GHz.
    cpufreq stats: 2.80 GHz:11.93%, 2.80 GHz:0.00%, 2.67 GHz:0.40%, 2.53 GHz:0.44%, 2.40 GHz:0.51%, 2.27 GHz:0.55%, 2.13 GHz:0.35%, 2.00 GHz:0.72%, 1.87 GHz:0.84%, 1.73 GHz:1.00%, 1.60 GHz:2.16%, 1.47 GHz:4.61%, 1.33 GHz:16.83%, 1.20 GHz:59.65%  (29241)
    boost state support:
      Supported: yes
      Active: yes
      25500 MHz max turbo 4 active cores
      25500 MHz max turbo 3 active cores
      25500 MHz max turbo 2 active cores
      25500 MHz max turbo 1 active cores

  Tried intel_pstate but it is not supported for some reason on my
  machine ie the following does not work and I am left with driver:
  acpi-cpufreq

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=enable"

  Could not see ACPI Thermal Zones reported in dmesg
  $ dmesg | grep ACPI
  [    0.000000] BIOS-e820: [mem 0x00000000bd780000-0x00000000bd78dfff] ACPI data
  [    0.000000] BIOS-e820: [mem 0x00000000bd78e000-0x00000000bd7cffff] ACPI NVS
  [    0.000000] ACPI: Early table checksum verification disabled
  [    0.000000] ACPI: RSDP 0x00000000000F9B40 000024 (v02 ACPIAM)
  [    0.000000] ACPI: XSDT 0x00000000BD780100 00006C (v01 DELL   FX09     20101113 MSFT 00000097)
  [    0.000000] ACPI: FACP 0x00000000BD780290 0000F4 (v04 DELL   FX09     20101113 MSFT 00000097)
  [    0.000000] ACPI BIOS Warning (bug): 32/64X length mismatch in FADT/Gpe0Block: 128/64 (20150619/tbfadt-623)
  [    0.000000] ACPI: DSDT 0x00000000BD780660 005B02 (v02 1AAAA  1AAAA000 00000000 INTL 20051117)
  [    0.000000] ACPI: FACS 0x00000000BD78E000 000040
  [    0.000000] ACPI: FACS 0x00000000BD78E000 000040
  [    0.000000] ACPI: APIC 0x00000000BD780390 00008C (v02 DELL   FX09     20101113 MSFT 00000097)
  [    0.000000] ACPI: MCFG 0x00000000BD780420 00003C (v01 DELL   OEMMCFG  20101113 MSFT 00000097)
  [    0.000000] ACPI: SLIC 0x00000000BD780460 000176 (v01 DELL   FX09     20101113 MSFT 00000097)
  [    0.000000] ACPI: OSFR 0x00000000BD7805E0 000080 (v01 DELL   FX09     20101113 MSFT 00000097)
  [    0.000000] ACPI: OEMB 0x00000000BD78E040 000072 (v01 DELL   FX09     20101113 MSFT 00000097)
  [    0.000000] ACPI: HPET 0x00000000BD78A660 000038 (v01 DELL   OEMHPET  20101113 MSFT 00000097)
  [    0.000000] ACPI: ASF! 0x00000000BD78A6A0 000099 (v32 LEGEND I865PASF 00000001 INTL 20051117)
  [    0.000000] ACPI: SSDT 0x00000000BD78F800 000363 (v01 DpgPmm CpuPm    00000012 INTL 20051117)
  [    0.000000] ACPI: Local APIC address 0xfee00000
  [    0.000000] ACPI: PM-Timer IO Port: 0x808
  [    0.000000] ACPI: Local APIC address 0xfee00000
  [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
  [    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
  [    0.000000] ACPI: IRQ0 used by override.
  [    0.000000] ACPI: IRQ9 used by override.
  [    0.000000] Using ACPI (MADT) for SMP configuration information
  [    0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
  [    0.000048] ACPI: Core revision 20150619
  [    0.004019] ACPI: All ACPI Tables successfully acquired
  [    0.206757] PM: Registering ACPI NVS region [mem 0xbd78e000-0xbd7cffff] (270336 bytes)
  [    0.217768] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
  [    0.217775] ACPI: bus type PCI registered
  [    0.217780] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
  [    0.222002] ACPI: Added _OSI(Module Device)
  [    0.222007] ACPI: Added _OSI(Processor Device)
  [    0.222011] ACPI: Added _OSI(3.0 _SCP Extensions)
  [    0.222016] ACPI: Added _OSI(Processor Aggregator Device)
  [    0.223412] ACPI: Executed 1 blocks of module-level executable AML code
  [    0.224917] ACPI: Dynamic OEM Table Load:
  [    0.224929] ACPI: SSDT 0xFFFF8802370FE000 001238 (v01 DpgPmm P001Ist  00000011 INTL 20051117)
  [    0.225251] ACPI: Dynamic OEM Table Load:
  [    0.225259] ACPI: SSDT 0xFFFF880235D62000 0004F4 (v01 PmRef  P001Cst  00003001 INTL 20051117)
  [    0.225623] ACPI: Interpreter enabled
  [    0.225631] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20150619/hwxface-580)
  [    0.225641] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20150619/hwxface-580)
  [    0.225659] ACPI: (supports S0 S3 S4 S5)
  [    0.225663] ACPI: Using IOAPIC for interrupt routing
  [    0.226463] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
  [    0.226492] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
  [    0.231375] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
  [    0.232079] pci 0000:00:03.0: System wakeup disabled by ACPI
  [    0.232944] pci 0000:00:1a.0: System wakeup disabled by ACPI
  [    0.233219] pci 0000:00:1c.0: System wakeup disabled by ACPI
  [    0.233355] pci 0000:00:1c.5: System wakeup disabled by ACPI
  [    0.233524] pci 0000:00:1d.0: System wakeup disabled by ACPI
  [    0.233628] pci 0000:00:1e.0: System wakeup disabled by ACPI
  [    0.250257] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 6 7 *10 11 12 14 15)
  [    0.250305] ACPI: PCI Interrupt Link [LNKB] (IRQs *5)
  [    0.250348] ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 6 7 10 11 12 14 15)
  [    0.250394] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 6 7 10 *11 12 14 15)
  [    0.250440] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 6 7 10 11 12 14 15) *0, disabled.
  [    0.250489] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 6 7 10 11 12 14 15) *0, disabled.
  [    0.250538] ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 6 7 10 11 12 14 *15)
  [    0.250584] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 6 7 10 11 12 *14 15)
  [    0.250633] ACPI: Enabled 2 GPEs in block 00 to 3F
  [    0.251003] ACPI: bus type USB registered
  [    0.251169] PCI: Using ACPI for IRQ routing
  [    0.256895] ACPI: \: failed to evaluate _DSM (0x1001)
  [    0.265257] pnp: PnP ACPI init
  [    0.265351] system 00:00: Plug and Play ACPI device, IDs PNP0c01 (active)
  [    0.265407] pnp 00:01: Plug and Play ACPI device, IDs PNP0b00 (active)
  [    0.265587] system 00:02: Plug and Play ACPI device, IDs PNP0c02 (active)
  [    0.265738] system 00:03: Plug and Play ACPI device, IDs PNP0c02 (active)
  [    0.265823] system 00:04: Plug and Play ACPI device, IDs PNP0c02 (active)
  [    0.265919] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active)
  [    0.265982] system 00:06: Plug and Play ACPI device, IDs PNP0c02 (active)
  [    0.266159] system 00:07: Plug and Play ACPI device, IDs PNP0c01 (active)
  [    0.266252] pnp: PnP ACPI: found 8 devices
  [    1.168433] ACPI: Power Button [PWRB]
  [    1.170665] ACPI: Power Button [PWRF]
  [   21.995925] ACPI Warning: SystemIO range 0x0000000000000828-0x000000000000082F conflicts with OpRegion 0x0000000000000800-0x000000000000084F (\PMRG) (20150619/utaddress-254)
  [   21.995931] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
  --- 
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pas        2076 F.... pulseaudio
   /dev/snd/controlC1:  pas        2076 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.10
  HibernationDevice: RESUME=UUID=68ce068c-1889-4f00-9b8a-12d7dc64348b
  InstallationDate: Installed on 2011-02-22 (1718 days ago)
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Dell Inc. Inspiron 580
  Package: linux (not installed)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic root=UUID=bf510382-4d2b-49d6-b9d9-ac6e3f6334eb ro intel_pstate=enable
  ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-17-generic N/A
   linux-backports-modules-4.2.0-17-generic  N/A
   linux-firmware                            1.149.1
  RfKill:
   
  Tags:  wily
  Uname: Linux 4.2.0-17-generic x86_64
  UpgradeStatus: Upgraded to wily on 2015-11-06 (0 days ago)
  UserGroups: adm admin cdrom dialout fuse lpadmin plugdev sambashare vboxusers wireshark
  _MarkForUpload: True
  dmi.bios.date: 11/13/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 0C2KJT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 3
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA07:bd11/13/2010:svnDellInc.:pnInspiron580:pvr:rvnDellInc.:rn0C2KJT:rvrA00:cvnDellInc.:ct3:cvr:
  dmi.product.name: Inspiron 580
  dmi.sys.vendor: Dell Inc.

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