Hi Daniel, Following up on the nvidia-modeset channel errors on X11 ( nvidia-graphics-drivers-580 version 580.173.02):
In addition to full display freezes, minor channel/modeset synchronization glitches on X11 are causing input event dropping where window buttons require 2 to 3 clicks to register. Diagnostics & Observations: 1. *Hardware / Driver Isolation:* Running xev -event button confirms that ButtonPress and ButtonRelease events reach the X server immediately on the very first physical click. This rules out mouse switch hardware degradation or libinput polling drops. 2. *Orphaned Render Layers:* Clicks are being swallowed by transparent window frames/hitboxes retained in mutter/xorg-server when display synchronization slips. 3. *Workaround:* Restarting GNOME Shell (Alt + F2 -> r) immediately clears the orphaned hitboxes and restores normal single-click responsiveness without requiring a full reboot or session restart. Hope this diagnostic detail helps in tracing the window unmapping/event handling interaction between xorg-server and the 580 series NVIDIA driver. Best regards, George Lacu On Thu, Jul 30, 2026 at 4:25 AM Daniel van Vugt <[email protected]> wrote: > Thanks for the bug report. > > In Xorg, the mouse cursor is managed entirely by the Xorg process so > when it freezes that is indeed either a Xorg, driver, or kernel problem. > > ** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu) > > ** Also affects: nvidia-graphics-drivers-580 (Ubuntu) > Importance: Undecided > Status: New > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/2162118 > > Title: > NVIDIA display driver freeze / nvidia-modeset channel error on X11 > > Status in nvidia-graphics-drivers-580 package in Ubuntu: > New > Status in xorg-server package in Ubuntu: > New > > Bug description: > System display completely froze during regular desktop use on X11. The > mouse cursor became un-responsive, and the display output locked up. > > System logs indicate an nvidia-modeset GPU display channel > error/timeout on X11. Running 'sudo dpkg --configure -a' afterwards > completed cleanly with zero broken packages, confirming the issue is > isolated to the NVIDIA graphics driver / display server interaction > rather than file corruption. > > To maintain system stability, hardware acceleration was manually > disabled in Firefox. > > Diagnostic system logs and hardware info attached via Apport/ubuntu- > bug. > > ProblemType: Bug > DistroRelease: Ubuntu 22.04 > Package: xorg 1:7.7+23ubuntu2 > ProcVersionSignature: Ubuntu 5.15.0-186.196-generic 5.15.209 > Uname: Linux 5.15.0-186-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.0000.01.00.0: 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 580.173.02 Tue Jun 23 > 08:38:17 UTC 2026 > GCC version: gcc version 11.4.0 (Ubuntu 11.4.0-1ubuntu1~22.04.3) > ApportVersion: 2.20.11-0ubuntu82.10 > Architecture: amd64 > BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' > CasperMD5CheckResult: unknown > CompositorRunning: None > CurrentDesktop: ubuntu:GNOME > Date: Thu Jul 30 03:43:12 2026 > DistUpgraded: Fresh install > DistroCodename: jammy > DistroVariant: ubuntu > DkmsStatus: nvidia/580.173.02, 5.15.0-186-generic, x86_64: installed > ExtraDebuggingInterest: Yes, if not too technical > GraphicsCard: > NVIDIA Corporation TU106 [GeForce GTX 1650] [10de:1f0a] (rev a1) > (prog-if 00 [VGA controller]) > Subsystem: ASUSTeK Computer Inc. TU106 [GeForce GTX 1650] [1043:879b] > InstallationDate: Installed on 2018-01-28 (3104 days ago) > InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 > (20180725) > MachineType: To be filled by O.E.M. To be filled by O.E.M. > ProcEnviron: > TERM=xterm-256color > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=en_US.UTF-8 > SHELL=/bin/bash > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-186-generic > root=UUID=d0899174-b876-491b-affd-5be63ac111aa ro quiet splash > pcie_aspm=off vt.handoff=7 > SourcePackage: xorg > UpgradeStatus: No upgrade log present (probably fresh install) > dmi.bios.date: 01/06/2014 > dmi.bios.release: 4.6 > dmi.bios.vendor: American Megatrends Inc. > dmi.bios.version: 2301 > dmi.board.asset.tag: To be filled by O.E.M. > dmi.board.name: M5A97 LE R2.0 > dmi.board.vendor: ASUSTeK COMPUTER INC. > dmi.board.version: Rev 1.xx > 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.:bvr2301:bd01/06/2014:br4.6:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnM5A97LER2.0:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:skuSKU: > dmi.product.family: To be filled by O.E.M. > dmi.product.name: To be filled by O.E.M. > dmi.product.sku: SKU > 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 2.4.113-2~ubuntu0.22.04.1 > version.libgl1-mesa-dri: libgl1-mesa-dri 23.2.1-1ubuntu3.1~22.04.4 > version.libgl1-mesa-glx: libgl1-mesa-glx 23.0.4-0ubuntu1~22.04.1 > version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A > version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.16 > version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A > version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1 > 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 > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-580/+bug/2162118/+subscriptions > > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2162118 Title: NVIDIA display driver freeze / nvidia-modeset channel error on X11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-580/+bug/2162118/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
