** Description changed: System: HP ZBook Firefly G8 laptop, Intel Iris Xe / Tiger Lake graphics, Xubuntu/Ubuntu 26.04, kernel 7.0.0-22-generic. Problem: The system hard-locks and requires a forced power-off. The power LED remains on, the system is completely unresponsive, and in earlier crashes the Caps Lock LED flickered/blinked. This is not a normal application crash or clean shutdown. The issue has occurred more than once. It previously appeared related to Intel i915/DRM display handling. Earlier logs showed a stack trace involving: - i915_hotplug_work_func [i915] - drm_kms_helper_connector_hotplug_event - drm_atomic_commit - intel_atomic_commit - intel_audio_codec_disable For the latest crash, kdump was enabled and reported ready, and crashkernel memory was reserved, but no vmcore was captured. /var/crash only contained kdump_lock and kexec_cmd. This suggests a hard hang/deadlock rather than a clean kernel panic. Current boot/debug parameters: zswap.enabled=1 i915.enable_psr=0 i915.enable_dc=0 drm.debug=0x1e log_buf_len=4M After the next reboot I also added: i915.enable_fbc=0 The XFCE compositor was already disabled when the crash occurred. I had previously installed Intel OpenCL packages but removed them; this crash appears to be in the kernel DRM/i915 display path, not an OpenCL compute workload. Programs running: Qgis 3.44, firefox with Gmail on one tab and youtube - playing music on another, Chrome browser with multiple tabs open + playing music on another, Chrome browser with multiple tabs open, + Syncthing running in background, Libreoffice and imwheel my setup has 4 displays running simultaneously, laptop built in + HDIM + 2 connected to a lenovo usbC dock using alt mode (the dock is also providing power, network and connecting to my keyboard and mouse) I was also listening to music via a bluetooth headset + + the crash occurred when moving a browser window between a screen + connected through the USB-C dock and the one connected via HDMI. Latest observed evidence: The previous boot ended abruptly. With drm.debug=0x1e enabled, the final kernel messages before the lockup show repeated i915/DRM atomic display activity, including atomic cursor/plane updates such as drm_atomic_set_fb_for_plane, intel_plane_atomic_calc_changes, drm_atomic_commit, and CRTC/cursor plane references. There was no clean shutdown, no vmcore, and no obvious storage/NVMe/MCE error in the captured evidence. External display/dock involvement is suspected but not fully proven. Earlier evidence pointed more clearly at display hotplug/modesetting; the latest crash looked more like atomic cursor/plane activity before the lockup. Expected result: System should remain responsive and not hard-lock during normal desktop use. Actual result: System hard-locks and requires forced power-off. Impact: This is severe because it causes full system lockup and possible data loss. I have attached: - previous-boot-kernel-full.txt - previous-boot-kernel-filtered.txt - previous-boot-end.txt - boots.txt - cmdline.txt - uname.txt - kdump-status.txt - var-crash-files.txt - system-product.txt - bios-version.txt - bios-release-date.txt - xrandr-after-reboot.txt ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-22-generic 7.0.0-22.22 ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0 Uname: Linux 7.0.0-22-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: notabrick 2578 F.... pipewire - notabrick 2592 F.... wireplumber - /dev/snd/controlC1: notabrick 2592 F.... wireplumber - /dev/snd/seq: notabrick 2578 F.... pipewire + USER PID ACCESS COMMAND + /dev/snd/controlC0: notabrick 2578 F.... pipewire + notabrick 2592 F.... wireplumber + /dev/snd/controlC1: notabrick 2592 F.... wireplumber + /dev/snd/seq: notabrick 2578 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: XFCE Date: Wed Jun 10 10:46:23 2026 InstallationDate: Installed on 2026-05-10 (31 days ago) InstallationMedia: Xubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: HP HP ZBook Firefly 14 inch G8 Mobile Workstation PC ProcEnviron: - LANG=en_US.UTF-8 - PATH=(custom, no user) - SHELL=/bin/bash - TERM=xterm-256color + LANG=en_US.UTF-8 + PATH=(custom, no user) + SHELL=/bin/bash + TERM=xterm-256color ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-22-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash zswap.enabled=1 i915.enable_psr=0 i915.enable_dc=0 drm.debug=0x1e log_buf_len=4M crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/06/2026 dmi.bios.release: 24.1 dmi.bios.vendor: HP dmi.bios.version: T76 Ver. 01.24.01 dmi.board.name: 880D dmi.board.vendor: HP dmi.board.version: KBC Version 30.57.00 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.ec.firmware.release: 48.87 dmi.modalias: dmi:bvnHP:bvrT76Ver.01.24.01:bd03/06/2026:br24.1:efr48.87:svnHP:pnHPZBookFirefly14inchG8MobileWorkstationPC:pvrSBKPFV3:rvnHP:rn880D:rvrKBCVersion30.57.00:cvnHP:ct10:cvr:sku3V328UT#ABA:pfa103C_5336ANHPZBook: dmi.product.family: 103C_5336AN HP ZBook dmi.product.name: HP ZBook Firefly 14 inch G8 Mobile Workstation PC dmi.product.sku: 3V328UT#ABA dmi.product.version: SBKPFV3 dmi.sys.vendor: HP
** Description changed: System: HP ZBook Firefly G8 laptop, Intel Iris Xe / Tiger Lake graphics, - Xubuntu/Ubuntu 26.04, kernel 7.0.0-22-generic. + Xubuntu/Ubuntu 26.04, kernel 7.0.0-22-generic. (all installed software + updated via apt on June 9, 2026) Problem: The system hard-locks and requires a forced power-off. The power LED remains on, the system is completely unresponsive, and in earlier crashes the Caps Lock LED flickered/blinked. This is not a normal application crash or clean shutdown. The issue has occurred more than once. It previously appeared related to Intel i915/DRM display handling. Earlier logs showed a stack trace involving: - i915_hotplug_work_func [i915] - drm_kms_helper_connector_hotplug_event - drm_atomic_commit - intel_atomic_commit - intel_audio_codec_disable For the latest crash, kdump was enabled and reported ready, and crashkernel memory was reserved, but no vmcore was captured. /var/crash only contained kdump_lock and kexec_cmd. This suggests a hard hang/deadlock rather than a clean kernel panic. Current boot/debug parameters: zswap.enabled=1 i915.enable_psr=0 i915.enable_dc=0 drm.debug=0x1e log_buf_len=4M After the next reboot I also added: i915.enable_fbc=0 The XFCE compositor was already disabled when the crash occurred. I had previously installed Intel OpenCL packages but removed them; this crash appears to be in the kernel DRM/i915 display path, not an OpenCL compute workload. Programs running: Qgis 3.44, firefox with Gmail on one tab and youtube playing music on another, Chrome browser with multiple tabs open, Syncthing running in background, Libreoffice and imwheel my setup has 4 displays running simultaneously, laptop built in + HDIM + 2 connected to a lenovo usbC dock using alt mode (the dock is also providing power, network and connecting to my keyboard and mouse) I was also listening to music via a bluetooth headset the crash occurred when moving a browser window between a screen connected through the USB-C dock and the one connected via HDMI. Latest observed evidence: The previous boot ended abruptly. With drm.debug=0x1e enabled, the final kernel messages before the lockup show repeated i915/DRM atomic display activity, including atomic cursor/plane updates such as drm_atomic_set_fb_for_plane, intel_plane_atomic_calc_changes, drm_atomic_commit, and CRTC/cursor plane references. There was no clean shutdown, no vmcore, and no obvious storage/NVMe/MCE error in the captured evidence. External display/dock involvement is suspected but not fully proven. Earlier evidence pointed more clearly at display hotplug/modesetting; the latest crash looked more like atomic cursor/plane activity before the lockup. Expected result: System should remain responsive and not hard-lock during normal desktop use. Actual result: System hard-locks and requires forced power-off. Impact: This is severe because it causes full system lockup and possible data loss. I have attached: - previous-boot-kernel-full.txt - previous-boot-kernel-filtered.txt - previous-boot-end.txt - boots.txt - cmdline.txt - uname.txt - kdump-status.txt - var-crash-files.txt - system-product.txt - bios-version.txt - bios-release-date.txt - xrandr-after-reboot.txt ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-22-generic 7.0.0-22.22 ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0 Uname: Linux 7.0.0-22-generic x86_64 ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: notabrick 2578 F.... pipewire notabrick 2592 F.... wireplumber /dev/snd/controlC1: notabrick 2592 F.... wireplumber /dev/snd/seq: notabrick 2578 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: XFCE Date: Wed Jun 10 10:46:23 2026 InstallationDate: Installed on 2026-05-10 (31 days ago) InstallationMedia: Xubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: HP HP ZBook Firefly 14 inch G8 Mobile Workstation PC ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-22-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash zswap.enabled=1 i915.enable_psr=0 i915.enable_dc=0 drm.debug=0x1e log_buf_len=4M crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/06/2026 dmi.bios.release: 24.1 dmi.bios.vendor: HP dmi.bios.version: T76 Ver. 01.24.01 dmi.board.name: 880D dmi.board.vendor: HP dmi.board.version: KBC Version 30.57.00 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.ec.firmware.release: 48.87 dmi.modalias: dmi:bvnHP:bvrT76Ver.01.24.01:bd03/06/2026:br24.1:efr48.87:svnHP:pnHPZBookFirefly14inchG8MobileWorkstationPC:pvrSBKPFV3:rvnHP:rn880D:rvrKBCVersion30.57.00:cvnHP:ct10:cvr:sku3V328UT#ABA:pfa103C_5336ANHPZBook: dmi.product.family: 103C_5336AN HP ZBook dmi.product.name: HP ZBook Firefly 14 inch G8 Mobile Workstation PC dmi.product.sku: 3V328UT#ABA dmi.product.version: SBKPFV3 dmi.sys.vendor: HP -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2156374 Title: HP ZBook Firefly G8 hard lockup in Intel i915/DRM atomic display path on 7.0.0-22-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2156374/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
