Public bug reported: System: Ubuntu desktop on ASUS laptop Kernel: 7.0.0-29-generic Summary: During normal desktop use, USB input stopped functioning. The external USB keyboard and USB wireless mouse both stopped responding, while the built-in I2C touchpad continued to work. At approximately 2026-08-14 19:27 EDT I captured the system while it was in the failed state. The affected USB devices were still enumerated by lsusb and registered as Linux input devices with usbhid bound: - Intel Raptor Lake USB 3.2 Gen 2x2 xHCI controller: 0000:00:14.0 - USB wireless mouse: usb-0000:00:14.0-6, /dev/input/event12 - USB keyboard: usb-0000:00:14.0-1.2.4, /dev/input/event6 Both event devices remained present but produced no input events. Testing the raw event devices with: sudo timeout 10s od -An -tx1 /dev/input/event12 sudo timeout 10s od -An -tx1 /dev/input/event6 produced no data while moving/clicking the mouse or pressing keyboard keys. I then physically unplugged USB devices, including an external USB optical drive and other peripherals. The disconnected devices continued to appear in lsusb. This suggests that the kernel USB topology had become stale and disconnect events were no longer being processed. A second external monitor also froze, continuing to display its last image. The external displays are connected through a USB/USB-C HDMI adapter/dock. The built-in touchpad continued working throughout. It is an I2C HID device and is not connected through xHCI. Recovery test: I unbound and rebound the Intel xHCI controller: echo -n '0000:00:14.0' | sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind sleep 3 echo -n '0000:00:14.0' | sudo tee /sys/bus/pci/drivers/xhci_hcd/bind After rebinding xhci_hcd: - the USB mouse immediately worked again - USB devices could be reconnected normally - the external USB keyboard worked again - the previously frozen second monitor began working again However, the laptop's built-in keyboard remained nonfunctional. The built-in keyboard is separately registered as: AT Raw Set 2 keyboard /sys/devices/platform/i8042/serio0/ driver: /sys/bus/serio/drivers/atkbd It also produced no usable keyboard input. Unbinding and rebinding atkbd: echo -n serio0 | sudo tee /sys/bus/serio/drivers/atkbd/unbind sleep 2 echo -n serio0 | sudo tee /sys/bus/serio/drivers/atkbd/bind did NOT restore the laptop keyboard. The I2C touchpad remained functional. A search of the kernel journal during the failure for: i8042|serio|atkbd|keyboard|xhci|usb|hid|irq|interrupt|ACPI|timeout|error produced no messages. Expected result: USB devices should continue processing input and disconnect events. The built-in keyboard should remain functional. External displays should not freeze. Actual result: The Intel xHCI/USB path stopped processing input/disconnect activity while devices remained enumerated. An external display froze simultaneously. Resetting xhci_hcd restored the USB devices and external display, but the separate i8042/atkbd laptop keyboard remained nonfunctional. Additional observation: I have previously experienced external-display corruption when monitors are connected through the same USB/USB-C HDMI adapter/dock. I do not yet know whether those incidents have the same root cause, but I am including this as a potentially relevant correlation. Reproducibility: Not yet intentionally reproduced. This occurred during normal use with multiple USB peripherals/hubs and external monitors attached. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Fri Aug 14 19:43:44 2026 IwDevWlo1Link: Not connected. MachineType: ASUSTeK COMPUTER INC. ROG Strix G18 G814JVR_G814JVR ProcFB: 0 i915drmfb 1 nvidia-drmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-29-generic root=ZFS=UbuntuZFS/root ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: Upgraded to resolute on 2026-06-05 (70 days ago) WifiSyslog: dmi.bios.date: 10/24/2024 dmi.bios.release: 5.27 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: G814JVR.320 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: G814JVR dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.ec.firmware.release: 0.49 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrG814JVR.320:bd10/24/2024:br5.27:efr0.49:svnASUSTeKCOMPUTERINC.:pnROGStrixG18G814JVR_G814JVR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG814JVR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaROGStrixG18: dmi.product.family: ROG Strix G18 dmi.product.name: ROG Strix G18 G814JVR_G814JVR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute wayland-session ** Attachment added: "full-journal.txt" https://bugs.launchpad.net/bugs/2163551/+attachment/5992266/+files/full-journal.txt -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2163551 Title: Intel Raptor Lake xHCI stalls with stale USB devices; USB input and external display freeze, i8042 keyboard also stops responding Status in linux package in Ubuntu: New Bug description: System: Ubuntu desktop on ASUS laptop Kernel: 7.0.0-29-generic Summary: During normal desktop use, USB input stopped functioning. The external USB keyboard and USB wireless mouse both stopped responding, while the built-in I2C touchpad continued to work. At approximately 2026-08-14 19:27 EDT I captured the system while it was in the failed state. The affected USB devices were still enumerated by lsusb and registered as Linux input devices with usbhid bound: - Intel Raptor Lake USB 3.2 Gen 2x2 xHCI controller: 0000:00:14.0 - USB wireless mouse: usb-0000:00:14.0-6, /dev/input/event12 - USB keyboard: usb-0000:00:14.0-1.2.4, /dev/input/event6 Both event devices remained present but produced no input events. Testing the raw event devices with: sudo timeout 10s od -An -tx1 /dev/input/event12 sudo timeout 10s od -An -tx1 /dev/input/event6 produced no data while moving/clicking the mouse or pressing keyboard keys. I then physically unplugged USB devices, including an external USB optical drive and other peripherals. The disconnected devices continued to appear in lsusb. This suggests that the kernel USB topology had become stale and disconnect events were no longer being processed. A second external monitor also froze, continuing to display its last image. The external displays are connected through a USB/USB-C HDMI adapter/dock. The built-in touchpad continued working throughout. It is an I2C HID device and is not connected through xHCI. Recovery test: I unbound and rebound the Intel xHCI controller: echo -n '0000:00:14.0' | sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind sleep 3 echo -n '0000:00:14.0' | sudo tee /sys/bus/pci/drivers/xhci_hcd/bind After rebinding xhci_hcd: - the USB mouse immediately worked again - USB devices could be reconnected normally - the external USB keyboard worked again - the previously frozen second monitor began working again However, the laptop's built-in keyboard remained nonfunctional. The built-in keyboard is separately registered as: AT Raw Set 2 keyboard /sys/devices/platform/i8042/serio0/ driver: /sys/bus/serio/drivers/atkbd It also produced no usable keyboard input. Unbinding and rebinding atkbd: echo -n serio0 | sudo tee /sys/bus/serio/drivers/atkbd/unbind sleep 2 echo -n serio0 | sudo tee /sys/bus/serio/drivers/atkbd/bind did NOT restore the laptop keyboard. The I2C touchpad remained functional. A search of the kernel journal during the failure for: i8042|serio|atkbd|keyboard|xhci|usb|hid|irq|interrupt|ACPI|timeout|error produced no messages. Expected result: USB devices should continue processing input and disconnect events. The built-in keyboard should remain functional. External displays should not freeze. Actual result: The Intel xHCI/USB path stopped processing input/disconnect activity while devices remained enumerated. An external display froze simultaneously. Resetting xhci_hcd restored the USB devices and external display, but the separate i8042/atkbd laptop keyboard remained nonfunctional. Additional observation: I have previously experienced external-display corruption when monitors are connected through the same USB/USB-C HDMI adapter/dock. I do not yet know whether those incidents have the same root cause, but I am including this as a potentially relevant correlation. Reproducibility: Not yet intentionally reproduced. This occurred during normal use with multiple USB peripherals/hubs and external monitors attached. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 NonfreeKernelModules: zfs ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Fri Aug 14 19:43:44 2026 IwDevWlo1Link: Not connected. MachineType: ASUSTeK COMPUTER INC. ROG Strix G18 G814JVR_G814JVR ProcFB: 0 i915drmfb 1 nvidia-drmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-29-generic root=ZFS=UbuntuZFS/root ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: Upgraded to resolute on 2026-06-05 (70 days ago) WifiSyslog: dmi.bios.date: 10/24/2024 dmi.bios.release: 5.27 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: G814JVR.320 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: G814JVR dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.ec.firmware.release: 0.49 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrG814JVR.320:bd10/24/2024:br5.27:efr0.49:svnASUSTeKCOMPUTERINC.:pnROGStrixG18G814JVR_G814JVR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG814JVR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:pfaROGStrixG18: dmi.product.family: ROG Strix G18 dmi.product.name: ROG Strix G18 G814JVR_G814JVR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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