Public bug reported: The touchpad was working fine in the live installation media with the same kernel, but post installation it stopped working.
INXI output: System: Host: 81X2 Kernel: 6.11.0-26-generic arch: x86_64 bits: 64 Desktop: GNOME v: 46.0 Distro: Ubuntu 24.04.2 LTS (Noble Numbat) Machine: Type: Convertible System: LENOVO product: 81X2 v: IdeaPad Flex 5 14ARE05 serial: <superuser required> Mobo: LENOVO model: LNVNB161216 v: SDK0Q55722 WIN serial: <superuser required> UEFI: LENOVO v: EECN42WW date: 03/14/2023 Battery: ID-1: BAT0 charge: 40.6 Wh (99.0%) condition: 41.0/52.5 Wh (78.1%) CPU: Info: 6-core model: AMD Ryzen 5 4500U with Radeon Graphics bits: 64 type: MCP cache: L2: 3 MiB Speed (MHz): avg: 1398 min/max: 1400/2375 cores: 1: 1397 2: 1400 3: 1397 4: 1397 5: 1400 6: 1397 Graphics: Device-1: AMD Renoir [Radeon RX Vega 6 ] driver: amdgpu v: kernel Device-2: Syntek Integrated Camera driver: uvcvideo type: USB Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X: loaded: amdgpu unloaded: fbdev,modesetting,radeon,vesa dri: radeonsi gpu: amdgpu resolution: 1920x1080~60Hz API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast platforms: gbm,x11,surfaceless,device API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.2.8-1ubuntu1~24.04.1 renderer: AMD Radeon Graphics (radeonsi renoir LLVM 19.1.1 DRM 3.61 6.11.0-26-generic) Audio: Device-1: AMD Renoir Radeon High Definition Audio driver: snd_hda_intel Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor driver: N/A Device-3: AMD Family 17h/19h HD Audio driver: snd_hda_intel API: ALSA v: k6.11.0-26-generic status: kernel-api Server-1: PipeWire v: 1.0.5 status: active Network: Device-1: Realtek RTL8822CE 802.11ac PCIe Wireless Network Adapter driver: rtw_8822ce IF: wlp2s0 state: up mac: 5c:3a:45:d9:a1:f5 Bluetooth: Device-1: Realtek Bluetooth Radio driver: btusb type: USB Report: hciconfig ID: hci0 rfk-id: 4 state: down bt-service: enabled,running rfk-block: hardware: no software: yes address: 5C:3A:45:D9:A1:F6 Drives: Local Storage: total: 491.55 GiB used: 20.08 GiB (4.1%) ID-1: /dev/nvme0n1 vendor: Lenovo model: UMIS RPJTJ512MEE1OWX size: 476.94 GiB ID-2: /dev/sda vendor: SanDisk model: Cruzer Blade size: 14.61 GiB type: USB Partition: ID-1: / size: 467.35 GiB used: 9.92 GiB (2.1%) fs: ext4 dev: /dev/nvme0n1p2 ID-2: /boot/efi size: 1.05 GiB used: 6.1 MiB (0.6%) fs: vfat dev: /dev/nvme0n1p1 Swap: ID-1: swap-1 type: file size: 4 GiB used: 0 KiB (0.0%) file: /swap.img Sensors: System Temperatures: cpu: 53.4 C mobo: N/A Fan Speeds (rpm): N/A Info: Memory: total: 8 GiB note: est. available: 7.13 GiB used: 1.76 GiB (24.7%) Processes: 286 Uptime: 10m Shell: Bash inxi: 3.3.34 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.11.0-26-generic 6.11.0-26.26~24.04.1 ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11 Uname: Linux 6.11.0-26-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lalit 1251 F.... wireplumber /dev/snd/controlC0: lalit 1251 F.... wireplumber /dev/snd/seq: lalit 1247 F.... pipewire CRDA: N/A CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed May 21 12:17:33 2025 InstallationDate: Installed on 2025-05-21 (0 days ago) InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215) MachineType: LENOVO 81X2 ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-26-generic root=UUID=bd6565cc-73e3-4809-98b6-c234ceecbb07 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.11.0-26-generic N/A linux-backports-modules-6.11.0-26-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.11 SourcePackage: linux-hwe-6.11 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/14/2023 dmi.bios.release: 1.42 dmi.bios.vendor: LENOVO dmi.bios.version: EECN42WW dmi.board.asset.tag: No Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0Q55722 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad Flex 5 14ARE05 dmi.ec.firmware.release: 1.21 dmi.modalias: dmi:bvnLENOVO:bvrEECN42WW:bd03/14/2023:br1.42:efr1.21:svnLENOVO:pn81X2:pvrIdeaPadFlex514ARE05:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55722WIN:cvnLENOVO:ct31:cvrIdeaPadFlex514ARE05:skuLENOVO_MT_81X2_BU_idea_FM_IdeaPadFlex514ARE05: dmi.product.family: IdeaPad Flex 5 14ARE05 dmi.product.name: 81X2 dmi.product.sku: LENOVO_MT_81X2_BU_idea_FM_IdeaPad Flex 5 14ARE05 dmi.product.version: IdeaPad Flex 5 14ARE05 dmi.sys.vendor: LENOVO ** Affects: linux-hwe-6.11 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug noble -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-6.11 in Ubuntu. https://bugs.launchpad.net/bugs/2111396 Title: Elantech stopped working after installation Status in linux-hwe-6.11 package in Ubuntu: New Bug description: The touchpad was working fine in the live installation media with the same kernel, but post installation it stopped working. INXI output: System: Host: 81X2 Kernel: 6.11.0-26-generic arch: x86_64 bits: 64 Desktop: GNOME v: 46.0 Distro: Ubuntu 24.04.2 LTS (Noble Numbat) Machine: Type: Convertible System: LENOVO product: 81X2 v: IdeaPad Flex 5 14ARE05 serial: <superuser required> Mobo: LENOVO model: LNVNB161216 v: SDK0Q55722 WIN serial: <superuser required> UEFI: LENOVO v: EECN42WW date: 03/14/2023 Battery: ID-1: BAT0 charge: 40.6 Wh (99.0%) condition: 41.0/52.5 Wh (78.1%) CPU: Info: 6-core model: AMD Ryzen 5 4500U with Radeon Graphics bits: 64 type: MCP cache: L2: 3 MiB Speed (MHz): avg: 1398 min/max: 1400/2375 cores: 1: 1397 2: 1400 3: 1397 4: 1397 5: 1400 6: 1397 Graphics: Device-1: AMD Renoir [Radeon RX Vega 6 ] driver: amdgpu v: kernel Device-2: Syntek Integrated Camera driver: uvcvideo type: USB Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X: loaded: amdgpu unloaded: fbdev,modesetting,radeon,vesa dri: radeonsi gpu: amdgpu resolution: 1920x1080~60Hz API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast platforms: gbm,x11,surfaceless,device API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 24.2.8-1ubuntu1~24.04.1 renderer: AMD Radeon Graphics (radeonsi renoir LLVM 19.1.1 DRM 3.61 6.11.0-26-generic) Audio: Device-1: AMD Renoir Radeon High Definition Audio driver: snd_hda_intel Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor driver: N/A Device-3: AMD Family 17h/19h HD Audio driver: snd_hda_intel API: ALSA v: k6.11.0-26-generic status: kernel-api Server-1: PipeWire v: 1.0.5 status: active Network: Device-1: Realtek RTL8822CE 802.11ac PCIe Wireless Network Adapter driver: rtw_8822ce IF: wlp2s0 state: up mac: 5c:3a:45:d9:a1:f5 Bluetooth: Device-1: Realtek Bluetooth Radio driver: btusb type: USB Report: hciconfig ID: hci0 rfk-id: 4 state: down bt-service: enabled,running rfk-block: hardware: no software: yes address: 5C:3A:45:D9:A1:F6 Drives: Local Storage: total: 491.55 GiB used: 20.08 GiB (4.1%) ID-1: /dev/nvme0n1 vendor: Lenovo model: UMIS RPJTJ512MEE1OWX size: 476.94 GiB ID-2: /dev/sda vendor: SanDisk model: Cruzer Blade size: 14.61 GiB type: USB Partition: ID-1: / size: 467.35 GiB used: 9.92 GiB (2.1%) fs: ext4 dev: /dev/nvme0n1p2 ID-2: /boot/efi size: 1.05 GiB used: 6.1 MiB (0.6%) fs: vfat dev: /dev/nvme0n1p1 Swap: ID-1: swap-1 type: file size: 4 GiB used: 0 KiB (0.0%) file: /swap.img Sensors: System Temperatures: cpu: 53.4 C mobo: N/A Fan Speeds (rpm): N/A Info: Memory: total: 8 GiB note: est. available: 7.13 GiB used: 1.76 GiB (24.7%) Processes: 286 Uptime: 10m Shell: Bash inxi: 3.3.34 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.11.0-26-generic 6.11.0-26.26~24.04.1 ProcVersionSignature: Ubuntu 6.11.0-26.26~24.04.1-generic 6.11.11 Uname: Linux 6.11.0-26-generic x86_64 ApportVersion: 2.28.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: lalit 1251 F.... wireplumber /dev/snd/controlC0: lalit 1251 F.... wireplumber /dev/snd/seq: lalit 1247 F.... pipewire CRDA: N/A CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed May 21 12:17:33 2025 InstallationDate: Installed on 2025-05-21 (0 days ago) InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215) MachineType: LENOVO 81X2 ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-26-generic root=UUID=bd6565cc-73e3-4809-98b6-c234ceecbb07 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-6.11.0-26-generic N/A linux-backports-modules-6.11.0-26-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.11 SourcePackage: linux-hwe-6.11 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/14/2023 dmi.bios.release: 1.42 dmi.bios.vendor: LENOVO dmi.bios.version: EECN42WW dmi.board.asset.tag: No Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0Q55722 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 31 dmi.chassis.vendor: LENOVO dmi.chassis.version: IdeaPad Flex 5 14ARE05 dmi.ec.firmware.release: 1.21 dmi.modalias: dmi:bvnLENOVO:bvrEECN42WW:bd03/14/2023:br1.42:efr1.21:svnLENOVO:pn81X2:pvrIdeaPadFlex514ARE05:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55722WIN:cvnLENOVO:ct31:cvrIdeaPadFlex514ARE05:skuLENOVO_MT_81X2_BU_idea_FM_IdeaPadFlex514ARE05: dmi.product.family: IdeaPad Flex 5 14ARE05 dmi.product.name: 81X2 dmi.product.sku: LENOVO_MT_81X2_BU_idea_FM_IdeaPad Flex 5 14ARE05 dmi.product.version: IdeaPad Flex 5 14ARE05 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.11/+bug/2111396/+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