Same issue Interesting thing, i got that errors, but all work fine, except libvirt/qemu/kvm, my VM didn't start. I go to logs and see that errors about i915 and suggest to restart libvirtd daemon, and when i stop admin socket ( meaning: sudo systemctl stop libvirtd-admin.socket ) system hangs up, exactly like in author post.
Environment Distributor ID: Ubuntu Description: Ubuntu 20.04.2 LTS Release: 20.04 Codename: focal Uname: Linux ThinkPad-E14 5.8.0-45-generic #51~20.04.1-Ubuntu SMP Tue Feb 23 13:46:31 UTC 2021 journalctl: Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for CS error Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Renderer[68496] context reset due to GPU hang Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for CS error Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Renderer[68496] context reset due to GPU hang Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:8cbf8db6, in Renderer [68496] Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for CS error Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Renderer[68496] context reset due to GPU hang Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:8cbf8db6, in Renderer [68496] Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for CS error Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Renderer[68496] context reset due to GPU hang Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:8cbf8db6, in Renderer [68496] Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for CS error Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Renderer[68496] context reset due to GPU hang Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 9:1:8cbf8db6, in Renderer [68496] Jun 12 01:51:06 ThinkPad-E14 kernel: i915 0000:00:02.0: [drm] Resetting rcs0 for CS error -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861395 Title: system hang: i915 Resetting rcs0 for hang on rcs0 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1861395/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
