Thanks. These messages look the most suspicious to me: Mai 04 11:04:24 mamba kernel: i915 0000:00:02.0: [drm] *ERROR* mstb 00000000caa481c4 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed Mai 04 11:04:24 mamba kernel: i915 0000:00:02.0: [drm] *ERROR* mstb 00000000caa481c4 port 2: DPCD read on addr 0x4b0 for 1 bytes NAKed Mai 04 11:04:27 mamba kernel: xhci_hcd 0000:2d:00.0: xHC error in resume, USBSTS 0x411, Reinit Mai 04 11:04:27 mamba kernel: usb usb3: root hub lost power or was reset Mai 04 11:04:27 mamba kernel: usb usb4: root hub lost power or was reset ... Mai 04 11:04:27 mamba kernel: usb 4-2: Disable of device-initiated U1 failed. Mai 04 11:04:27 mamba kernel: usb 4-2: Disable of device-initiated U2 failed. Mai 04 11:04:27 mamba kernel: usb 4-2: reset SuperSpeed USB device number 2 using xhci_hcd Mai 04 11:04:28 mamba kernel: usb 4-2.4: Disable of device-initiated U1 failed. Mai 04 11:04:28 mamba kernel: usb 4-2.4: Disable of device-initiated U2 failed. Mai 04 11:04:28 mamba kernel: usb 4-2.4: reset SuperSpeed USB device number 3 using xhci_hcd Mai 04 11:04:31 mamba kernel: i915 0000:00:02.0: [drm] *ERROR* mstb 00000000caa481c4 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed Mai 04 11:04:31 mamba kernel: i915 0000:00:02.0: [drm] *ERROR* mstb 00000000caa481c4 port 2: DPCD read on addr 0x4b0 for 1 bytes NAKed
It's certainly possible that if gnome-shell is expecting a working monitor then such kernel/hardware/dock/firmware bugs might make it appear to freeze, as it waits forever. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971536 Title: Gnome shell freezes when plugging in external display To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1971536/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
