Public bug reported: This bug manifests itself slightly differently across different scenarios. To summarise, scrolling through a long file/directory listing in Midnight Commander (e.g. > 40 items) causes the cursor to lag, stutter and pause.
In 23.10 if the up/down key is depressed there is a delay of about 0.25 seconds before moving onto the previous/next item. In 24.04, the cursor will stick on the previous/last item until it is released. This behavior is not exhibited in a console session [e.g. via Ctrl+Alt+F5], with Ubuntu 22.04 LTS or under Wayland. It also does not seem to affect the Tecknet EMK01707 keyboard under Ubuntu 23.10. This behavior has been observed using both Guake terminal [Version 3.10] and Gnome terminal [Version 3.52.0 for GNOME 46]. [Affected Ubuntu versions] Ubuntu 23.10 Ubuntu 24.04 [To recreate] Open mc in terminal and browse through a long directory/file listing (> 40 items). This behavior will manifest immediately or after a few cycles. [Expected behavior] The cursor should scroll linearly throughout a list without pauses, juddering, lag or requiring the user to release the key. [Workarounds] 1. Switch to Wayland 2. Use a different keyboard. The problem was not apparent using a Tecknet EMK01707 keyboard under 23.10, however this has not been tested under Noble Numbat. [Further information] MC version: GNU Midnight Commander 4.8.30 Built with GLib 2.80.0 Built with S-Lang 2.3.3 with terminfo database Built with libssh2 1.11.0 With builtin Editor and Aspell support With subshell support as default With support for background operations With mouse support on xterm and Linux console With support for X11 events With internationalization support With multiple codepages support With ext2fs attributes support Virtual File Systems: cpiofs, tarfs, sfs, extfs, ext2undelfs, ftpfs, sftpfs, fish Data types: char: 8; int: 32; long: 64; void *: 64; size_t: 64; off_t: 64; [Related bugs] This seems related to https://bugs.launchpad.net/debian/+source/xserver- xorg-input-evdev/+bug/1002951 ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 6.8.0-22.22-generic 6.8.1 Uname: Linux 6.8.0-22-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia .proc.driver.nvidia.capabilities.fabric-imex-mgmt: DeviceFileMinor: 4323 DeviceFileMode: 256 DeviceFileModify: 1 .proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file. .proc.driver.nvidia.capabilities.mig: Error: path was not a regular file. .proc.driver.nvidia.gpus.0000.06.00.0: Error: path was not a regular file. .proc.driver.nvidia.registry: Binary: "" .proc.driver.nvidia.suspend: suspend hibernate resume .proc.driver.nvidia.suspend_depth: default modeset uvm .proc.driver.nvidia.version: NVRM version: NVIDIA UNIX x86_64 Kernel Module 550.67 Tue Mar 12 23:54:15 UTC 2024 GCC version: gcc version 13.2.0 (Ubuntu 13.2.0-23ubuntu3) ApportVersion: 2.28.0-0ubuntu1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu Apr 11 19:11:20 2024 DistUpgraded: Fresh install DistroCodename: noble DistroVariant: ubuntu DkmsStatus: nvidia/550.67, 6.8.0-22-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: NVIDIA Corporation GM206 [GeForce GTX 960] [10de:1401] (rev a1) (prog-if 00 [VGA controller]) Subsystem: ZOTAC International (MCO) Ltd. GM206 [GeForce GTX 960] [19da:2375] InstallationDate: Installed on 2024-04-10 (1 days ago) InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Beta amd64 (20240410) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcEnviron: LANG=en_GB.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-22-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/16/2020 dmi.bios.release: 5.14 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P4.00 dmi.board.name: A320M-DVS R4.0 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP4.00:bd07/16/2020:br5.14:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnA320M-DVSR4.0:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:skuToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.sku: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.120-2 version.libgl1-mesa-dri: libgl1-mesa-dri 24.0.3-1ubuntu4 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.11-2ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1 ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug noble ubuntu wayland-session -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/2061022 Title: Intermittent keyboard lag with Tecknet EKB01002BK01 keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2061022/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
