我遇到了一个问题，因为我的 Dell Precision 3581 笔记本电脑不时会重新启动与显示器（Philips Brilliance 346P）的连接。以下是来自 kern.log 的日志，当发生这种情况时，会出现以下日志。这是相当随机的，有时一整天都没有发生任何事情，有时根本无法工作，只有重新启动才能有所帮助。我还添加了来自 lsusb、lspci 和 uname 的信息。有人能指出可能是什么问题吗，或者还有什么需要补充的吗？
此外，我要补充一点，这是唯一一台与我的显示器有问题的 Ubuntu 笔记本电脑，但与这台笔记本电脑配套的其他设备都没有这个问题。
谨致问候。Draqun
内核日志
2024-04-12T10:28:13.261740+02:00 dgiebas-ubu-i4b-pl kernel: [12978.733911] audit: type=1400 audit(1712910493.253:18184): apparmor="DENIED" operation="open" class="file" profile="snap.skype.skype" name="/sys/devices/LNXSYSTM:00/LNXSYBUS:00/ACPI0003:00/power_supply/AC/online" pid=4860 comm="skypeforlinux" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
2024-04-12T10:28:13.425739+02:00 dgiebas-ubu-i4b-pl kernel: [12978.897013] usb 4-1: reset SuperSpeed Plus Gen 2x1 USB device number 8 using xhci_hcd
2024-04-12T10:28:13.665741+02:00 dgiebas-ubu-i4b-pl kernel: [12979.136711] usb 4-1.1: USB disconnect, device number 11
2024-04-12T10:28:13.792295+02:00 dgiebas-ubu-i4b-pl kernel: [12979.264988] usb 4-1: reset SuperSpeed Plus Gen 2x1 USB device number 8 using xhci_hcd
2024-04-12T10:28:14.117793+02:00 dgiebas-ubu-i4b-pl kernel: [12979.588826] usb 4-1.1: new SuperSpeed Plus Gen 2x1 USB device number 12 using xhci_hcd
2024-04-12T10:28:14.137730+02:00 dgiebas-ubu-i4b-pl kernel: [12979.611464] usb 4-1.1: New USB device found, idVendor=0bda, idProduct=0420, bcdDevice= 1.42
2024-04-12T10:28:14.137738+02:00 dgiebas-ubu-i4b-pl kernel: [12979.611493] usb 4-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
2024-04-12T10:28:14.137739+02:00 dgiebas-ubu-i4b-pl kernel: [12979.611497] usb 4-1.1: Product: 4-Port USB 3.0 Hub
2024-04-12T10:28:14.137739+02:00 dgiebas-ubu-i4b-pl kernel: [12979.611498] usb 4-1.1: Manufacturer: Generic
2024-04-12T10:28:14.141725+02:00 dgiebas-ubu-i4b-pl kernel: [12979.612982] hub 4-1.1:1.0: USB hub found
2024-04-12T10:28:14.141728+02:00 dgiebas-ubu-i4b-pl kernel: [12979.613223] hub 4-1.1:1.0: 4 ports detected
2024-04-12T10:28:14.259404+02:00 dgiebas-ubu-i4b-pl kernel: [12979.733988] audit: type=1400 audit(1712910494.253:18185): apparmor="DENIED" operation="open" class="file" profile="snap.skype.skype" name="/sys/devices/LNXSYSTM:00/LNXSYBUS:00/ACPI0003:00/power_supply/AC/online" pid=4860 comm="skypeforlinux" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
~> lsusb
damian@dgiebas-ubu-i4b-pl ~> lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0a5c:5842 Broadcom Corp. 58200
Bus 001 Device 003: ID 1bcf:28d2 Sunplus Innovation Technology Inc. Integrated_Webcam_FHD
Bus 001 Device 007: ID 8087:0033 Intel Corp.
Bus 001 Device 018: ID 04f2:b612 Chicony Electronics Co., Ltd USB2.0 FHD UVC WebCam
Bus 001 Device 017: ID 0bda:4837 Realtek Semiconductor Corp. USB Audio
Bus 001 Device 016: ID 1532:006e Razer USA, Ltd DeathAdder Essential
Bus 001 Device 015: ID 1532:025e Razer USA, Ltd Razer Cynosa V2
Bus 001 Device 012: ID 0bda:5420 Realtek Semiconductor Corp. 4-Port USB 2.0 Hub
Bus 001 Device 011: ID 0bda:5420 Realtek Semiconductor Corp. 4-Port USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 014: ID 0bda:0420 Realtek Semiconductor Corp. 4-Port USB 3.0 Hub
Bus 004 Device 008: ID 0bda:0420 Realtek Semiconductor Corp. 4-Port USB 3.0 Hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
~> lspci
damian@dgiebas-ubu-i4b-pl ~> lspci
0000:00:00.0 Host bridge: Intel Corporation Device a706
0000:00:01.0 PCI bridge: Intel Corporation Device a70d
0000:00:02.0 VGA compatible controller: Intel Corporation Raptor Lake-P [Iris Xe Graphics] (rev 04)
0000:00:04.0 Signal processing controller: Intel Corporation Device a71d
0000:00:06.0 System peripheral: Intel Corporation RST VMD Managed Controller
0000:00:07.0 PCI bridge: Intel Corporation Device a76e
0000:00:07.1 PCI bridge: Intel Corporation Device a73f
0000:00:08.0 System peripheral: Intel Corporation Device a74f
0000:00:0d.0 USB controller: Intel Corporation Device a71e
0000:00:0d.2 USB controller: Intel Corporation Device a73e
0000:00:0e.0 RAID bus controller: Intel Corporation Volume Management Device NVMe RAID Controller Intel Corporation
0000:00:12.0 Serial controller: Intel Corporation Alder Lake-P Integrated Sensor Hub (rev 01)
0000:00:14.0 USB controller: Intel Corporation Alder Lake PCH USB 3.2 xHCI Host Controller (rev 01)
0000:00:14.2 RAM memory: Intel Corporation Alder Lake PCH Shared SRAM (rev 01)
0000:00:14.3 Network controller: Intel Corporation Device 51f1 (rev 01)
0000:00:15.0 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #0 (rev 01)
0000:00:15.1 Serial bus controller: Intel Corporation Alder Lake PCH Serial IO I2C Controller #1 (rev 01)
0000:00:16.0 Communication controller: Intel Corporation Alder Lake PCH HECI Controller (rev 01)
0000:00:1d.0 PCI bridge: Intel Corporation Alder Lake PCI Express x1 Root Port #10 (rev 01)
0000:00:1f.0 ISA bridge: Intel Corporation Device 519d (rev 01)
0000:00:1f.3 Audio device: Intel Corporation Device 51ca (rev 01)
0000:00:1f.4 SMBus: Intel Corporation Alder Lake PCH-P SMBus Host Controller (rev 01)
0000:00:1f.5 Serial bus controller: Intel Corporation Alder Lake-P PCH SPI Controller (rev 01)
0000:00:1f.6 Ethernet controller: Intel Corporation Device 0dc5 (rev 01)
0000:01:00.0 3D controller: NVIDIA Corporation Device 25bd (rev a1)
0000:72:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
10000:e0:06.0 PCI bridge: Intel Corporation Device a74d
10000:e0:06.2 PCI bridge: Intel Corporation Device a73d
10000:e1:00.0 Non-Volatile memory controller: Shenzhen Longsys Electronics Co., Ltd. Device 1602 (rev 01)
10000:e2:00.0 Non-Volatile memory controller: SK hynix Device 1d59 (rev 03)
damian@dgiebas-ubu-i4b-pl ~>
~> uname -a
damian@dgiebas-ubu-i4b-pl ~> uname -a
Linux dgiebas-ubu-i4b-pl 6.2.0-39-generic #40-Ubuntu SMP PREEMPT_DYNAMIC Tue Nov 14 14:18:00 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux