[Dell XPS L421X] Ubuntu 13.10 fan always on

[Vgraziadei]

After the upgrade to Ubuntu 13.10, but maybe also before, in my system the fan are always on. In dmesg I've found this warning :
[ 18.080298] ACPI Warning: 0x0000000000000428-0x000000000000042f SystemIO conflicts with Region \PMIO 1 (20130517/utaddress-251)
[ 18.080316] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \_SB_.PCI0.PEG0.PEGP.GPIO 1 (20130517/utaddress-251)
[ 18.080320] ACPI Warning: 0x0000000000000530-0x000000000000053f SystemIO conflicts with Region \GPIO 2 (20130517/utaddress-251)
[ 18.080324] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \_SB_.PCI0.PEG0.PEGP.GPIO 1 (20130517/utaddress-251)
[ 18.080327] ACPI Warning: 0x0000000000000500-0x000000000000052f SystemIO conflicts with Region \GPIO 2 (20130517/utaddress-251)
[ 18.113551] ACPI Warning: \_SB_.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Integer], ACPI requires [Package] (20130517/nsarguments-95)
[ 18.113590] ACPI Warning: \_SB_.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20130517/nsarguments-95)
[ 18.159532] ACPI Warning: \_SB_.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Integer], ACPI requires [Package] (20130517/nsarguments-95)
[ 18.159565] ACPI Warning: \_SB_.PCI0.GFX0._DSM: Argument #4 type mismatch - Found [Integer], ACPI requires [Package] (20130517/nsarguments-95)
[ 19.299558] ACPI Warning: Evaluating _BQC failed (20130517/video-566)

Potential fix: https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=9aa5b0181bdf335f0b731d8502e128a862884bcd

---
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: enzo 2423 F.... pulseaudio
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=215fb241-2ecd-41c9-a622-7e12673fb00b
InstallationDate: Installed on 2012-12-14 (315 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MachineType: Dell Inc. XPS L421X
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic.efi.signed root=UUID=ca585b8f-dd71-4f9f-b83f-6f3f454318ce ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
RelatedPackageVersions:
 linux-restricted-modules-3.11.0-12-generic N/A
 linux-backports-modules-3.11.0-12-generic N/A
 linux-firmware 1.116
Tags: saucy
Uname: Linux 3.11.0-12-generic x86_64
UpgradeStatus: Upgraded to saucy on 2013-10-18 (7 days ago)
UserGroups: adm cdrom debian-tor dialout dip lpadmin netdev plugdev sambashare sudo
dmi.bios.date: 09/28/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A12
dmi.board.name: 08HDPJ
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A12
dmi.modalias: dmi:bvnDellInc.:bvrA12:bd09/28/2012:svnDellInc.:pnXPSL421X:pvrA12:rvnDellInc.:rn08HDPJ:rvrA00:cvnDellInc.:ct8:cvrA12:
dmi.product.name: XPS L421X
dmi.product.version: A12
dmi.sys.vendor: Dell Inc.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1244630/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1244630

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Vgraziadei (vgraziadei)]

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[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.12 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-rc6-saucy/

[penalvch (penalvch)]

Vgraziadei, as per http://www.dell.com/support/drivers/us/en/19/Product/xps-14-l421x an update is available for your BIOS (A14). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful.

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Thank you for your understanding.

[madbiologist (me-again)]

This might be fixed in the upstream 3.12.5 kernel by this commit (the model name in the patch description is mispelt, but I've checked the patch's source code and it is spelt correctly there, which is what matters):

commit 97b054c2ee8ba8a3542f391641fd78f6e3e44f0a
Author: Alan Cox
Date: Tue Dec 3 13:56:56 2013 -0800

    drivers/char/i8k.c: add Dell XPLS L421X

    commit 9aa5b0181bdf335f0b731d8502e128a862884bcd upstream.

    Addresses https://bugzilla.kernel.org/show_bug.cgi?id=60772

    Signed-off-by: Alan Cox
    Reported-by: Leho Kraav
    Signed-off-by: Andrew Morton
    Signed-off-by: Greg Kroah-Hartman