This is how I got the DSDT ACPI table patched and installed: 1. Disassemple the current dsdt ACPI table (see [1]): ``` mkdir -p /tmp/acpitables cd /tmp/acpitables sudo acpidump > acpidump.out acpixtract -a acpidump.out iasl -d dsdt.dat ``` In my case the output dsdt.dsl file contained some invalid error output lines at the very beginning which I just removed. Otherwise, the compiling in step 4 results in errors.
3. Apply this patch to dsdt.dsl (see [2]): ``` - Name (_HID, "XXXX0000") // _HID: Hardware ID + Name (_HID, "ELAN062F") // _HID: Hardware ID ``` 4. Create an assembler source file out of the patched dsdt.dsl: ``` iasl -sa dsdt.dsl ``` 5. Create a CPIO archive to be loaded by the bootloader (see [3]): ``` mkdir -p kernel/firmware/acpi cp dsdt.aml ssdt1.aml kernel/firmware/acpi find kernel | cpio -H newc --create > acpi_override sudo cp acpi_override /boot ``` 6. Install the patched dsdt file (see [4]): ``` cpio --extract < ./acpi_override cp kernel/firmware/acpi/dsdt.aml /boot/fixed_dsdt.aml # Create or update /boot/grub/custom.cfg to contain acpi /fixed_dsdt.aml ``` Sources: [1] https://01.org/linux-acpi/utilities [2] https://github.com/realnickel/lenovo_thinkbook_iml15_touchpad_acpi_fix/commit/de0ca637f7d8de2164c787801b4af9d4ff586d67 [3] https://wiki.archlinux.org/index.php/DSDT#Using_a_CPIO_archive https://askubuntu.com/questions/1027552/including-a-custom-acpi-dsdt-with-kubuntu-18-04-rc1 -- 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/1853277 Title: Lenovo ThinkBook 14-IML Touchpad not showing up in /proc/bus/input/devices Status in linux package in Ubuntu: Confirmed Bug description: This is happening on a ThinkBook 14 IML 20RV. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-18-generic 5.3.0-18.19+1 ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1 Uname: Linux 5.3.0-18-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 1848 F.... pulseaudio CasperVersion: 1.427 CurrentDesktop: ubuntu:GNOME Date: Wed Nov 20 11:10:52 2019 LiveMediaBuild: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) MachineType: LENOVO 20RV ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed quiet splash --- RelatedPackageVersions: linux-restricted-modules-5.3.0-18-generic N/A linux-backports-modules-5.3.0-18-generic N/A linux-firmware 1.183 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/10/2019 dmi.bios.vendor: LENOVO dmi.bios.version: CJCN21WW dmi.board.name: LVA/LVAB dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.modalias: dmi:bvnLENOVO:bvrCJCN21WW:bd10/10/2019:svnLENOVO:pn20RV:pvrLenovoThinkBook14-IML:rvnLENOVO:rnLVA/LVAB:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvr: dmi.product.family: ThinkBook 14-IML dmi.product.name: 20RV dmi.product.sku: LENOVO_MT_20RV_BU_idea_FM_ThinkBook 14-IML dmi.product.version: Lenovo ThinkBook 14-IML dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1853277/+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
