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/var/log/syslog 充满 USB 条目

tag-icon • tag-icon usb dell touchscreen syslog
/var/log/syslog 充满 USB 条目

我在 Dell Inspiron 上运行 20.04.2 LTS。在调查另一个问题时，我注意到我的 /var/log/syslog 不断收到如下所示的 USB 设备消息。它们以每秒 > 1 条的速度接收。这是正常的吗？这似乎是来自触摸屏。

Jun 17 19:01:24 GREY kernel: [  924.090073] usb 1-7: USB disconnect, device number 76
Jun 17 19:01:24 GREY fido_id[7641]: usb1: Failed to open report descriptor at '/sys/devices/pci0000:00/0000:00:14.0/usb1/report_descriptor': No such file or directory
Jun 17 19:01:24 GREY fido_id[7640]: usb1: Failed to open report descriptor at '/sys/devices/pci0000:00/0000:00:14.0/usb1/report_descriptor': No such file or directory
Jun 17 19:01:24 GREY kernel: [  924.486011] usb 1-7: new full-speed USB device number 77 using xhci_hcd
Jun 17 19:01:24 GREY kernel: [  924.634271] usb 1-7: not running at top speed; connect to a high speed hub
Jun 17 19:01:24 GREY kernel: [  924.635068] usb 1-7: New USB device found, idVendor=1fd2, idProduct=5001, bcdDevice= 5.00
Jun 17 19:01:24 GREY kernel: [  924.635070] usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Jun 17 19:01:24 GREY kernel: [  924.635071] usb 1-7: Product: LGD AIT Touch Controller
Jun 17 19:01:24 GREY kernel: [  924.635072] usb 1-7: Manufacturer: Melfas
Jun 17 19:01:24 GREY kernel: [  924.639056] input: Melfas LGD AIT Touch Controller as /devices/pci0000:00/0000:00:14.0/usb1/1-7/1-7:1.0/0003:1FD2:5001.09F1/input/input1565
Jun 17 19:01:24 GREY kernel: [  924.639177] hid-multitouch 0003:1FD2:5001.09F1: input,hiddev1,hidraw3: USB HID v2.00 Device [Melfas LGD AIT Touch Controller] on usb-0000:00:14.0-7/input0
Jun 17 19:01:24 GREY kernel: [  924.639761] hid-generic 0003:1FD2:5001.09F2: hiddev2,hidraw4: USB HID v1.00 Device [Melfas LGD AIT Touch Controller] on usb-0000:00:14.0-7/input1
Jun 17 19:01:24 GREY mtp-probe: checking bus 1, device 77: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-7"
Jun 17 19:01:24 GREY mtp-probe: bus: 1, device: 77 was not an MTP device
Jun 17 19:01:24 GREY kernel: [  924.690120] usb 1-7: USB disconnect, device number 77
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答案1

原来是触摸屏本身的硬件问题。通过尝试运行戴尔固件 ePSA 诊断程序进行确认。由于触摸屏不断连接/断开连接，它们挂在主菜单上，因此无法运行任何程序。我找到了笔记本电脑的原理图，并试图找到表面安装的保险丝以将其移除以禁用触摸屏，但显然，保险丝安装在主板的键盘侧，这需要断开 10 多个繁琐的连接器并移除散热器，而这比我现在想投入的工作要多得多。所以，我现在只能忍受臃肿的系统日志了。

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