In my case, I am running Ubuntu 22.04 uptodate. This trackpad bug has been around a while, and due to the slight process naming differences between platforms, it can be hard to link them together.
For myself, this happens on my XPS 13 9385, after coming out of sleep, with a similarly named process irq/51-DELL08AF It has been reported on other, much older platforms, such as https://bugzilla.redhat.com/show_bug.cgi?id=1656416 Notably it lives the life of the OS version and gets closed every time. Seems like a kernel bug that is persistent over different distributions and versions going back to at least 2018. Thanks to this post, where I figured out the workaround https://www.dell.com/community/Precision-Mobile-Workstations/High-load- heating-up-fan-noise-after-S3-suspend-and-resume-on/td-p/7441933 In some instances, the workaround was not discovered https://gitlab.freedesktop.org/libinput/libinput/-/issues/263 My hardware is 06cb:76af, but seems like the issue is likely with the driver/kernel/sleep interaction than any specific hardware model from my quick googling. # dmesg | grep -i touchpad [ 1.381426] input: DELL08AF:00 06CB:76AF Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-DELL08AF:00/0018:06CB:76AF.0002/input/input11 [ 8.205524] input: DELL08AF:00 06CB:76AF Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-1/i2c-DELL08AF:00/0018:06CB:76AF.0002/input/input37 ** Bug watch added: Red Hat Bugzilla #1656416 https://bugzilla.redhat.com/show_bug.cgi?id=1656416 ** Bug watch added: gitlab.freedesktop.org/libinput/libinput/-/issues #263 https://gitlab.freedesktop.org/libinput/libinput/-/issues/263 -- 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/1882510 Title: IRQ/51-SYNA2393 using lots of CPU after suspend/resume Status in linux package in Ubuntu: Confirmed Bug description: After a suspend/resume cycle (using "deep" suspend mode), the process IRQ/51-SYNA2393 uses considerable CPU 10+%. Using the trackpad for a few seconds seems to fix the issue. I don't normally use the trackpad while docked so it's a bit annoying to have to remember to use it just to get this problem to go away. Looks like others have hit the same issue; I found this on askubuntu: https://askubuntu.com/questions/1138642/ubuntu-18-04-drains-battery- very-fast-after-wake-up-from-a-deep-sleep ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-generic 5.4.0.33.38 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: shaun 2997 F.... pulseaudio /dev/snd/controlC0: shaun 2997 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Jun 8 11:30:07 2020 InstallationDate: Installed on 2018-12-11 (544 days ago) InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3) MachineType: Dell Inc. Precision 5530 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-33-generic root=/dev/mapper/ubuntu--vg-root ro mem_sleep_default=deep resume=/dev/disk/by-uuid/01f98d09-5f44-4469-904b-c976fbd46d96 quiet splash RelatedPackageVersions: linux-restricted-modules-5.4.0-33-generic N/A linux-backports-modules-5.4.0-33-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-05-02 (36 days ago) dmi.bios.date: 12/25/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.15.0 dmi.board.name: 0FP2W2 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.15.0:bd12/25/2019:svnDellInc.:pnPrecision5530:pvr:rvnDellInc.:rn0FP2W2:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Precision dmi.product.name: Precision 5530 dmi.product.sku: 087D dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1882510/+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
