Bugzilla – Bug 1214411
Intel HD5500 handled by i915 hangs for seconds freezing the desktop interaction
Last modified: 2023-10-31 11:16:38 UTC
Created attachment 868888 [details] dmesg with firmware_class.dyndbg=+p I noticed my GPU which is Intel HD5500 (part of i5-5200U) hangs for several seconds and resumes. I am not physically using this laptop recently and I started to notice the hangs in 6.4.x kernel. I have the following set for VM "GPU" sharing as kernel parameters. It isn't very critical ATM and I can disable them if needed. acpi_osi=! quiet security=apparmor intel_iommu=on firmware_class.dyndbg=+p i915.enable_gvt=1 kvm.ignore_msrs=1 iommu=pt i915.modeset=1 allow_unsafe_interrupts=1 i915.enable_guc=0 acpi_osi parameter is required to boot this system, already reported to Linux kernel
Created attachment 868889 [details] sudo hwinfo >hwinfo.txt
Could you check all i915 and iommu-related options and check only PM problem? We need to reduce the state as clean as possible at first.
Created attachment 868891 [details] removed VM GPU sharing related settings and booted I notice the hang occurs (but not limited to) the first KDE/Wayland loading screen after logged in via SDDM (entering password) I also remember noticing the hang while using digikam etc.
Thanks. A warning appears at the boot: [ 3.492974] i915 0000:00:02.0: drm_WARN_ON_ONCE(level >= n_entries) [ 3.493025] WARNING: CPU: 1 PID: 84 at drivers/gpu/drm/i915/display/intel_ddi.c:1412 intel_ddi_level+0x1cb/0x1e0 [i915] then you got GPU hang. I believe the best would be to report to the upstream at gitlab.freedesktop.org issues drm/intel.
I will be reporting the issue details on freedesktop bug reporting system as suggested.