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#1 2015-10-27 18:05:33

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Dell M3800 fan issue & freezing

Hi,

I'm suffering from a problem, which I think was introduced in 3.18 (3.17 / 3.19 might also be possible, I don't remember anymore). During system boot up, just before gdm gets loaded, my system is freezing for about 3 - 5 seconds and the fans are running on maximum speed. The fans switch back to normal speed, once the login screen is loaded. I can then login and use my Laptop without any issues. However, if I try to read temperatures with "sensors" command, my system gets unresponsive for 3 - 5 seconds and the fans are going crazy again. They settle down after the freeze and sensors is showing me the following:

[tolga@Lightning ~]$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +27.8°C  (crit = +105.0°C)
temp2:       -268.5°C  (crit = +105.0°C)

dell_smm-virtual-0
Adapter: Virtual device
Processor Fan: 4800 RPM
CPU:            +48.0°C  

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +47.0°C  (high = +84.0°C, crit = +100.0°C)
Core 0:         +45.0°C  (high = +84.0°C, crit = +100.0°C)
Core 1:         +45.0°C  (high = +84.0°C, crit = +100.0°C)
Core 2:         +48.0°C  (high = +84.0°C, crit = +100.0°C)
Core 3:         +41.0°C  (high = +84.0°C, crit = +100.0°C)

This never happened before. The old 3.14 LTS kernel didn't had this issue. I've flashed the latest BIOS (A09), but the issue persists. I can temporarily fix this issue by Clearing TPM module in BIOS and disabling it. However, after shutting down the Laptop for a while and booting it up again, the issue comes back. I'm not sure, what the trigger is, can someone guide me to find the culprit?

Cheers,
Tolga

//Edit: I've uploaded a small video on YouTube about this issue https://www.youtube.com/watch?v=cq0dZdhwYJo. Unfortunately, you can't really hear the fan noise. But they're running at maximum speed, while the system is freezed.

Last edited by tolga9009 (2015-10-27 18:40:33)

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#2 2015-10-27 18:56:33

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 17,922

Re: Dell M3800 fan issue & freezing

tolga9009 wrote:
temp2:       -268.5°C  (crit = +105.0°C)

Cooled by liquid helium, I suppose.   Clearly that is wrong.

Which kernel are you running?
What happens if you disable your display manger and log into a shell on the console?
What happens then if you start your display manager by hand?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#3 2015-10-27 19:10:39

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

Hi ewaller!

I'm currently using the latest 4.2.4-1 kernel. I've got the latest packages and updates installed as of right now. But the problem started occuring on 3.18 (not 100% sure. Definitely was not present in 3.14 and lower).
When I disable the display manager and log on console, the fans don't spin up and there is no freeze during boot. I can also run "sensors" without any issues or freezes.
When I start the display manager by hand, there is no issue at all. No freeze, no fan issue, no problems when I execute "sensors". Temperature is still wrong though:

[tolga@Lightning ~]$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:        +27.8°C  (crit = +105.0°C)
temp2:       -268.5°C  (crit = +105.0°C)

dell_smm-virtual-0
Adapter: Virtual device
Processor Fan: 2300 RPM
CPU:            +47.0°C  

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +47.0°C  (high = +84.0°C, crit = +100.0°C)
Core 0:         +46.0°C  (high = +84.0°C, crit = +100.0°C)
Core 1:         +44.0°C  (high = +84.0°C, crit = +100.0°C)
Core 2:         +46.0°C  (high = +84.0°C, crit = +100.0°C)
Core 3:         +41.0°C  (high = +84.0°C, crit = +100.0°C)

This is weird. Thanks for the help so far!

//Edit: I've just tested Ubuntu 15.10 Live CD. Same issue. Ubuntu 15.10 is using Kernel 4.2.

Last edited by tolga9009 (2015-10-27 19:14:11)

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#4 2015-10-27 20:09:53

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 17,922

Re: Dell M3800 fan issue & freezing

I had all kinds of problems with the late 3.x kernels and the early 4.x kernels.  My system would block reads to any /sys files that were maintained by acpi.  I had thought it fixed, but during a compile the other night, the latest kernel did the same thing.  I'm wondering if these are related. 

Anything interesting in the journal that corresponds to when the fans spun up?  You may see indications that the processors throttled, but I am also looking for what may have happened immediately before that


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#5 2015-10-28 19:19:24

rep_movsd
Member
Registered: 2013-08-24
Posts: 94

Re: Dell M3800 fan issue & freezing

This may not be related to your problem, but it may give you a way to check whats happening when the fans go crazy.
I am not sure if it works on the latest Precision notebooks but x200 onwards the following trick works.

Hold Shift+Fn and enter 15324  anytime after the BIOS POST is done - the Scroll lock led starts flashing
Press Fn + R to see the Thermal management mode screen where you can check temperatures, change fan speeds and control CPU throttle %

Careful using this with X running, it enters a 80x25 text mode and sometimes when you come back the display driver wont recover.

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#6 2015-10-29 10:53:07

lucazade
Member
Registered: 2013-03-10
Posts: 26

Re: Dell M3800 fan issue & freezing

My XPS 15 9530 should be really similiar to M3800 and the issue is not present..
wondering if it could be a hardware problem.

If you install the LTS kernel the issue is still present? If not write to the kernel mailing list
because it is a regression.

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#7 2015-10-29 12:29:09

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

@rep_movsd: that key combination did not work for me. I've also googled for solution for my laptop, unfortunately no such thing exists.

@lucazade: interesting. Yes, they are very similar, but not the same. There might be BIOS differencies and they also have a different GPU. The XPS 15 9530 has a Nvidia GT750M, whereas the M3800 features a Quadro K1100M GPU. Consumer grade GPUs are much more common and therefore better tested / supported. I'm wondering, if this issue is related with the GPU (please note, that I can't distinguish between GPU fan and CPU fan, my laptop has 2 fans). I currently have nvidia drivers installed; I will try out nouveau and report back. The 3.14-LTS kernel didn't had the issues. I'm unsure about the latest LTS kernel. I will test it and report back later.

Which BIOS do you have installed by the way? And are you booting Arch with UEFI only (legacy ROMs disabled?) or are you using legacy boot?

@ewaller: I've tested Ubuntu 14.04.2 featuring kernel 3.16, no issues, absolutely smooth. I was also unable to reproduce the issue under 3.19 - however, I'm not sure, if it was just "bad" luck. I will test it more extensively tonight and report back.

I've set my kernel to a more verbose log level and was able to get more information. Unfortunately, I've tried out some other kernel parameters and am currently unable to boot into my Arch install. I will restore it later today and report back. There were ACPI related errors, just 2 lines before the freeze (you could clearly see the freeze, it was for about 4 seconds). 1 line above the freeze, there was some info about EDAC ECC, something like "EDAC: ECC memory not available". I will post the relevant dmesg output, once I get the system running again.

Thanks for the help so far!

Last edited by tolga9009 (2015-10-29 13:08:57)

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#8 2015-10-29 12:32:56

lucazade
Member
Registered: 2013-03-10
Posts: 26

Re: Dell M3800 fan issue & freezing

It could be related to Quadro videocard.. In my office there are 10 xps 9530 with arch, refind and without legacy boot and no one have this issue.
You could try nouveau but Ubuntu live you tested uses it... mmm..

Edit: BIOS A09

Last edited by lucazade (2015-10-29 12:33:15)

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#9 2015-10-29 14:27:10

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 17,922

Re: Dell M3800 fan issue & freezing

Is the edac_mc module loaded on your machine?   You might try black listing it and see if you see any change of behavior.  Also, in your "BIOS" setup (Not the right term for UEFI machines, but I digress...) See if you have the ability to turn off ECC mode.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#10 2015-10-29 15:09:12

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

@lucazade: okay, I need to investigate it further then. It also might be a hardware fault, I don't know.

@ewaller: there is no entry for ECC memory. Also, my CPU doesn't even support ECC memory (Intel Core i7-4702HQ). However, the Quadro K1100M is capable of supporting ECC. Maybe this is leading to a conflict? Blacklisting the module sounds like a good plan. I will be able to check it out in 2 - 3 hours.

//Edit: here is a dmesg output. It's slightly different from last times' dmesg, so EDAC probably isn't the problem (look at the time).

[    2.367852] hub 2-1:1.0: USB hub found
[    2.368824] hub 2-1:1.0: 8 ports detected
[    2.405376] ip_tables: (C) 2000-2006 Netfilter Core Team
[    2.414196] systemd[1]: systemd 227 running in system mode. (+PAM -AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD +IDN)
[    2.415173] systemd[1]: Detected architecture x86-64.
[    2.418861] systemd[1]: Set hostname to <Lightning>.
[    2.472051] systemd[1]: Reached target Login Prompts.
[    2.474794] systemd[1]: Reached target Swap.
[    2.477552] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[    2.480010] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    2.482517] systemd[1]: Listening on LVM2 metadata daemon socket.
[    2.485097] systemd[1]: Listening on Journal Socket (/dev/log).
[    2.487616] systemd[1]: Listening on udev Kernel Socket.
[    2.490103] systemd[1]: Reached target Encrypted Volumes.
[    2.495163] systemd[1]: Created slice User and Session Slice.
[    2.497803] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[    2.500386] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    2.503147] systemd[1]: Reached target Paths.
[    2.506095] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    2.509014] systemd[1]: Listening on udev Control Socket.
[    2.511967] systemd[1]: Listening on Journal Socket.
[    2.515028] systemd[1]: Created slice System Slice.
[    2.518410] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[    2.522068] systemd[1]: Mounting Huge Pages File System...
[    2.526545] systemd[1]: Mounting Debug File System...
[    2.528739] systemd[1]: Mounting POSIX Message Queue File System...
[    2.531195] systemd[1]: Mounting Temporary Directory...
[    2.535126] systemd[1]: Mounting Configuration File System...
[    2.538381] systemd[1]: Reached target Slices.
[    2.541772] systemd[1]: Starting Journal Service...
[    2.545463] systemd[1]: Starting Remount Root and Kernel File Systems...
[    2.548440] EXT4-fs (sda2): re-mounted. Opts: discard
[    2.550522] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[    2.554297] systemd[1]: Starting Setup Virtual Console...
[    2.557885] systemd[1]: Starting Apply Kernel Variables...
[    2.561105] systemd[1]: Created slice system-getty.slice.
[    2.564272] systemd[1]: Reached target Remote File Systems.
[    2.568384] systemd[1]: Mounted Huge Pages File System.
[    2.571486] systemd[1]: Mounted Configuration File System.
[    2.574213] clocksource: Switched to clocksource tsc
[    2.575414] systemd[1]: Mounted Debug File System.
[    2.577301] systemd[1]: Mounted POSIX Message Queue File System.
[    2.579543] systemd[1]: Mounted Temporary Directory.
[    2.581621] systemd[1]: Started Create list of required static device nodes for the current kernel.
[    2.583881] systemd[1]: Started Remount Root and Kernel File Systems.
[    2.585964] systemd[1]: Started Apply Kernel Variables.
[    2.598645] systemd[1]: Starting udev Coldplug all Devices...
[    2.602283] systemd[1]: Starting Load/Save Random Seed...
[    2.606051] systemd[1]: Starting Create Static Device Nodes in /dev...
[    2.610139] systemd[1]: Started Setup Virtual Console.
[    2.613902] systemd[1]: Started Load/Save Random Seed.
[    2.616925] systemd[1]: Started Create Static Device Nodes in /dev.
[    2.618949] systemd[1]: Started Journal Service.
[    2.629758] systemd-journald[230]: Received request to flush runtime journal from PID 1
[    2.634157] usb 3-9: new full-speed USB device number 3 using xhci_hcd
[    2.694227] input: DELL Wireless hotkeys as /devices/virtual/input/input7
[    2.697855] ACPI: AC Adapter [ACAD] (off-line)
[    2.701941] wmi: Mapper loaded
[    2.711301] ACPI: Invalid active2 threshold
[    2.712377] thermal LNXTHERM:00: registered as thermal_zone8
[    2.713551] ACPI: Thermal Zone [TZ00] (28 C)
[    2.715143] thermal LNXTHERM:01: registered as thermal_zone9
[    2.716265] ACPI: Thermal Zone [TZ01] (-269 C)
[    2.755147] EDAC MC: Ver: 3.0.0
[    2.759026] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[    2.760599] ACPI Warning: SystemIO range 0x000000000000F040-0x000000000000F05F conflicts with OpRegion 0x000000000000F040-0x000000000000F04F (\_SB_.PCI0.SBUS.SMBI) (20150619/utaddress-254)
[    2.762268] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[    2.763973] EDAC ie31200: No ECC support
[    2.799683] AVX2 version of gcm_enc/dec engaged.
[    2.801529] AES CTR mode by8 optimization enabled
[    7.015016] mei_me 0000:00:16.0: NFC MEI VERSION: IVN 0x1 Vendor ID 0x1 Type 0x1
[    7.022983] input: Dell WMI hotkeys as /devices/virtual/input/input9
[    7.030958] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[    7.047202] Intel(R) Wireless WiFi driver for Linux
[    7.051937] Copyright(c) 2003- 2015 Intel Corporation
[    7.052059] iwlwifi 0000:06:00.0: enabling device (0000 -> 0002)
[    7.053058] iwlwifi 0000:06:00.0: Direct firmware load for iwlwifi-7260-15.ucode failed with error -2
[    7.053088] iwlwifi 0000:06:00.0: Direct firmware load for iwlwifi-7260-14.ucode failed with error -2
[    7.062089] iwlwifi 0000:06:00.0: loaded firmware version 25.30.13.0 op_mode iwlmvm
[    7.075402] iTCO_vendor_support: vendor-support=0
[    7.083660] snd_hda_intel 0000:00:03.0: enabling device (0000 -> 0002)
[    7.088059] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_exit [i915])
[    7.092349] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[    7.092412] iTCO_wdt: Found a Lynx Point TCO device (Version=2, TCOBASE=0x1860)
[    7.092592] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[    7.101496] nfc: nfc_init: NFC Core ver 0.1
[    7.101529] NET: Registered protocol family 39
[    7.108690] ACPI: Battery Slot [BAT1] (battery present)
[    7.112531] iwlwifi 0000:06:00.0: Detected Intel(R) Dual Band Wireless AC 7260, REV=0x144
[    7.115140] iwlwifi 0000:06:00.0: L1 Enabled - LTR Enabled
[    7.115456] iwlwifi 0000:06:00.0: L1 Enabled - LTR Enabled
[    7.116512] snd_hda_codec_realtek hdaudioC1D0: autoconfig for ALC3661: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[    7.116515] snd_hda_codec_realtek hdaudioC1D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    7.116518] snd_hda_codec_realtek hdaudioC1D0:    hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
[    7.116519] snd_hda_codec_realtek hdaudioC1D0:    mono: mono_out=0x0
[    7.116521] snd_hda_codec_realtek hdaudioC1D0:    inputs:
[    7.116523] snd_hda_codec_realtek hdaudioC1D0:      Headphone Mic=0x19
[    7.116525] snd_hda_codec_realtek hdaudioC1D0:      Headset Mic=0x1b
[    7.116527] snd_hda_codec_realtek hdaudioC1D0:      Internal Mic=0x12
[    7.136696] intel_rapl: Found RAPL domain package
[    7.138049] intel_rapl: Found RAPL domain core
[    7.138051] intel_rapl: Found RAPL domain uncore
[    7.138053] intel_rapl: Found RAPL domain dram
[    7.138131] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/sound/card1/input10
[    7.138396] input: HDA Intel PCH Headphone Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input11
[    7.149281] input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input12
[    7.149372] input: HDA Intel HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input13
[    7.149485] input: HDA Intel HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.0/sound/card0/input14
[    7.174137] Probing NFC pn544
[    7.175346] usb 3-11: new high-speed USB device number 4 using xhci_hcd
[    7.179786] random: nonblocking pool is initialized
[    7.237800] bbswitch: version 0.8
[    7.239448] bbswitch: Found integrated VGA device 0000:00:02.0: \_SB_.PCI0.GFX0
[    7.241092] bbswitch: Found discrete VGA device 0000:02:00.0: \_SB_.PCI0.PEG0.PEGP
[    7.241106] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150619/nsarguments-95)
[    7.241202] bbswitch: detected an Optimus _DSM function
[    7.241214] pci 0000:02:00.0: enabling device (0006 -> 0007)
[    7.241268] bbswitch: Succesfully loaded. Discrete card 0000:02:00.0 is on
[    7.244861] bbswitch: disabling discrete graphics
[    7.244870] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20150619/nsarguments-95)
[    7.323125] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[    7.325226] iwlwifi 0000:06:00.0 wlp6s0: renamed from wlan0
[    7.352242] IPv6: ADDRCONF(NETDEV_UP): wlp6s0: link is not ready
[    7.353438] iwlwifi 0000:06:00.0: L1 Enabled - LTR Enabled
[    7.353688] iwlwifi 0000:06:00.0: L1 Enabled - LTR Enabled

I've now tried blacklisting ie31200_edac and mei_me, but the issue persisted. Due to systemd's nature of loading up modules and processes simultaneously, I think we need to watch around the freezing point. The ACPI warning is always popping up, so this really might be ACPI related.

//Edit2: also disabled iwlwifi and ie31200_edac + edac_core. So it seems to be unrelated to EDAC, WiFi and Intel Management Interface.

//Edit3: I've blacklisted dell_smo8800 and wasn't able to reproduce the issue since then. The dell_smo8800 got patched in early December, just before 3.19 got released. I will investigate this further.

//Edit4: Today, I've faced this issue again. So, blacklisting dell_smo8800 didn't fix this issue. I've also tried out the latest Linux LTS kernel 4.1.12-1; same issue. I've also faced this issue, when I booted off the latest Arch Linux install media 2015.10.01 - still same issue. So, it's not related Xorg / Desktop Environment / Nvidia / Nouveau drivers. It might be a hardware fault. Either way, I'm giving up for now.

Last edited by tolga9009 (2015-10-31 16:09:22)

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#11 2015-11-02 07:28:24

leelists
Member
From: France
Registered: 2015-11-02
Posts: 4

Re: Dell M3800 fan issue & freezing

Hi @tolga9009,

You are not alone, I face the same issue with my M3800, it's worse on computer startup (cold), then it become less frequent when it warm's.
Do you have the same fealing ?

Lee

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#12 2015-11-02 09:20:25

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

Hi leelists,

interesting, so I'm not the only one. I really can't tell, if there is a difference. Though I've seen RPM values between 5000 RPM and 4600 RPM. I'm really curious, what the problem is. Is it ACPI? Or maybe Linux kernel? Or hardware related?

Cheers,
Tolga

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#13 2015-11-02 10:06:37

leelists
Member
From: France
Registered: 2015-11-02
Posts: 4

Re: Dell M3800 fan issue & freezing

Hi,

I think i have a solution: disabling intel p_state support in kernel, it seem's to work for me...

Regards,
Lee

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#14 2015-11-02 10:17:29

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

Hmmm, that is very odd. I mean, the CPU (and Intel p_state) is nothing special and used in several other laptops, like the Dell XPS 15 9530. It seems like setting something in BIOS / blacklisting some kernel modules clears something, until something else triggers and sets it again. I don't think, that it's a permanent fix.

I've just come across this bug https://bugzilla.kernel.org/show_bug.cgi?id=83921. MIght this be related? Maybe it's fixed for the Dell XPS 15 9530 and not for the M3800?

@lucazede: when you run sensors, do you see these odd temps aswell?

acpitz-virtual-0
Adapter: Virtual device
temp1:        +27.8°C  (crit = +105.0°C)
temp2:       -268.5°C  (crit = +105.0°C)

And if you run dmesg, do these show up?

[    2.711301] ACPI: Invalid active2 threshold
[    2.712377] thermal LNXTHERM:00: registered as thermal_zone8
[    2.713551] ACPI: Thermal Zone [TZ00] (28 C)
[    2.715143] thermal LNXTHERM:01: registered as thermal_zone9
[    2.716265] ACPI: Thermal Zone [TZ01] (-269 C)

//Edit: I've just checked, BIOS A10 has been released for Dell M3800. Release notes:

Fixes & Enhancements
Fixes
- Fixed System hang up after Touch Touchpad

Enhancements
-Update RealTek RTL8153-VB PXE Rom to V2.01 for iPXE
-Update SMBIOS type0 format for Win10 BIOS Requirement

It looks like this is about on par with XPS 15 9530 BIOS A09:

Fixes & Enhancements
Fixes
- Fixed System hang up after Touch Touchpad
- Fixed USB Test Fail

Enhancements
-Update Flash Utility
-Update SMBIOS type0 format for Win10 BIOS Requirement

I'm waiting a few weeks before updating BIOS, but "Fixed System hang up after Touch Touchpad" might be somewhat related.

Last edited by tolga9009 (2015-11-02 17:45:01)

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#15 2015-11-03 09:47:31

leelists
Member
From: France
Registered: 2015-11-02
Posts: 4

Re: Dell M3800 fan issue & freezing

Hi tolga,

I did upgrade my bios to A10, but still getting the same hangs,
p_state disabling was a bad solution ... :-(

Lee

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#16 2015-11-05 22:37:09

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

I've just tested Linux 4.3 in testing repo, same issue. Guess we need to contact the kernel guys.

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#17 2015-11-17 14:27:51

leelists
Member
From: France
Registered: 2015-11-02
Posts: 4

Re: Dell M3800 fan issue & freezing

Finally i did rollback to an old 3.16 kernel and the problem went away, unfortunately I have no time to bissect this ....

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#18 2016-01-31 04:25:00

tolga9009
Member
From: Germany
Registered: 2010-01-08
Posts: 61

Re: Dell M3800 fan issue & freezing

This issue is still present in 4.5-rc2. I've found this related thread: https://bbs.archlinux.org/viewtopic.php?id=203488. Blacklisting dell-smm-hwmon (formerly known as i8k) fixes this issue. i8k / dell-smm-hwmon detects the Dell Precision M3800 by a simple string match, which is probably the reason, why the M3800 is affected and XPS 15 9530 is not (it's searching for "Dell Precision" string). I don't know, if blocking dell-smm-hwmon has any sideeffects, but it's a temporary fix. I've reported this to Kernel Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=112021.

Last edited by tolga9009 (2016-02-05 23:26:27)

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#19 2017-04-03 10:26:04

Malikos
Member
Registered: 2015-12-12
Posts: 46

Re: Dell M3800 fan issue & freezing

Hello, does anyone still have this issue (freeze and max speed fans at boot)?

I'm using the newest ck kernel (4.10) and I still have the exact same problems as @tolga9009 descibed.
After reading https://bugzilla.kernel.org/show_bug.cgi?id=112021 I concluded that this issue is resolved since kernel 4.7 but apparently not.
I can blacklist dell-smm-hwmon and these problems disappear, but without dell-smm-hwmon and i8kutils my fans are acting like crazy.
Maybe some workaround can be done to avoid these freezes?

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