Thanks for the bug report. The attached kernel log (CurrentDmesg.txt) appears to show some relevant log messages. It looks like either a kernel bug or a USB controller/motherboard issue.
** Summary changed: - External mouse and external keyboard is not detected + [HP 255 G8 Notebook PC] USB mouse and keyboard connections are lost ** Package changed: xorg (Ubuntu) => linux-hwe-5.11 (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.11 in Ubuntu. https://bugs.launchpad.net/bugs/1950844 Title: [HP 255 G8 Notebook PC] USB mouse and keyboard connections are lost Status in linux-hwe-5.11 package in Ubuntu: New Bug description: My Hp-255-G8 Notebook pc is not detecting my external mouse and keyboard. It works well when I switch it on, then after some time, it does not work (both mouse and keyboard). Then after restarting the PC it again works well and then again gets disconnected. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.11.0-40.44~20.04.2-generic 5.11.22 Uname: Linux 5.11.0-40-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Sat Nov 13 10:07:12 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c2) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Picasso [103c:87d1] InstallationDate: Installed on 2021-11-02 (10 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) MachineType: HP HP 255 G8 Notebook PC ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-40-generic root=UUID=4b338a56-a661-410b-8e21-622b327a1bbe ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/18/2021 dmi.bios.release: 15.25 dmi.bios.vendor: Insyde dmi.bios.version: F.25 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 87D1 dmi.board.vendor: HP dmi.board.version: 38.25 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.chassis.version: Chassis Version dmi.ec.firmware.release: 38.25 dmi.modalias: dmi:bvnInsyde:bvrF.25:bd08/18/2021:br15.25:efr38.25:svnHP:pnHP255G8NotebookPC:pvrType1ProductConfigId:sku3K1G7PA#ACJ:rvnHP:rn87D1:rvr38.25:cvnHP:ct10:cvrChassisVersion: dmi.product.family: 103C_5336AN HP 200 dmi.product.name: HP 255 G8 Notebook PC dmi.product.sku: 3K1G7PA#ACJ dmi.product.version: Type1ProductConfigId dmi.sys.vendor: HP version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.105-3~20.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.3 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1~20.04.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.11/+bug/1950844/+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