@d-bob-1 and @Peter Well, you are right!
I omitted to say that I returned at the beginning of the year a Dell 7559 (with Win10) after only 24 hours of use!!! The reason was that, after I made an video driver update for nvidia gc, video was suddenly freeze watching on youtube !!!, and fans went crazy. It was also posting a message like NVIDIA Windows Kernel Mode Driver stopped responding - bla bla Ofcourse, Dell utilities were saying that everything is ok. With Nvidia driver disabled, running only on Intel HD Graphics, everything was ok. My assumption was that they put on the market an insufficiently tested model in terms of interaction between Intel HD graphics and Nvidia video platforms, but this is not all. Regarding my Vostro 3568 (Ubuntu 16.04), with only Intel HDG 620, sensors command output: acpitz-virtual-0 Adapter: Virtual device temp1: +25.0°C (crit = +107.0°C) coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +36.0°C (high = +100.0°C, crit = +100.0°C) Core 0: +33.0°C (high = +100.0°C, crit = +100.0°C) Core 1: +34.0°C (high = +100.0°C, crit = +100.0°C) dell_smm-virtual-0 Adapter: Virtual device Processor Fan: 2826 RPM CPU: +36.0°C Ambient: +34.0°C with a lot of tasks running. After couple of minutes, with same tasks running: acpitz-virtual-0 Adapter: Virtual device temp1: +25.0°C (crit = +107.0°C) coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +36.0°C (high = +100.0°C, crit = +100.0°C) Core 0: +33.0°C (high = +100.0°C, crit = +100.0°C) Core 1: +34.0°C (high = +100.0°C, crit = +100.0°C) dell_smm-virtual-0 Adapter: Virtual device Processor Fan: 0 RPM CPU: +36.0°C Ambient: +34.0°C It looks like Dell and Intel joined hands for a processor warming prevention policy. Unfortunately dell use loud (cheap?:))fans. I have the latest bios installed, also the Kabylake GT video driver and i'm Using Intel microcode firmware under Additional drivers. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1602888 Title: Dell Inspiron 7559 fans do not shut off once started, even when cool Status in linux package in Ubuntu: Invalid Bug description: Running Ubuntu 16.04 on a Dell Inspiron 7559 laptop there appears to be an issue with the fan control. When I first boot up the machine the fans are off. However, after the laptop warms up under normal usage, the fans kick on and then never shut off again. Even when the CPU cools down to below 35c, the fans will continue to run. If I suspend the the laptop, and then immediately wake it up again then fans are once again off, until it warms up again. So essentially, once the fans start they don't seem to ever shut off. Fans seem to work normally under Windows 10. They turn on as needed, and then turn off once the laptop cools down. I've tried the various BIOS updates that Dell has released, without success. I am currently running Dell's latest BIOS for this laptop (v1.1.8) Below is the output of lm-sensors showing the fans running when the CPU is at a cool 35c dell_smm-virtual-0 Adapter: Virtual device Processor Fan: 1925 RPM Processor Fan: 2143 RPM CPU: +35.0°C GPU: +1.0°C SODIMM: +49.0°C ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-28-generic 4.4.0-28.47 ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13 Uname: Linux 4.4.0-28-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bob 1709 F.... pulseaudio CurrentDesktop: Unity Date: Wed Jul 13 19:18:45 2016 HibernationDevice: RESUME=UUID=14de580b-76f3-47e4-9850-fe7637f9ff77 InstallationDate: Installed on 2016-07-13 (0 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Dell Inc. Inspiron 7559 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic.efi.signed root=UUID=0b3dbcf3-0bdb-4c35-9200-7bb303055a81 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-28-generic N/A linux-backports-modules-4.4.0-28-generic N/A linux-firmware 1.157.2 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/17/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.1.8 dmi.board.name: 0H0CC0 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvr1.1.8:bd04/17/2016:svnDellInc.:pnInspiron7559:pvr1.1.8:rvnDellInc.:rn0H0CC0:rvrA00:cvnDellInc.:ct8:cvrNotSpecified: dmi.product.name: Inspiron 7559 dmi.product.version: 1.1.8 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1602888/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
