Randomly (once a day, none or ten times in an hour) I got this:
Oct 13 11:19:55 work mtp-probe: checking bus 1, device 27:
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4"
Oct 13 11:19:55 work mtp-probe: bus: 1, device: 27 was not an MTP device
Oct 13 11:20:44 work kernel: [ 6972.357596] usb 1-1-port4: disabled by hub
(EMI?), re-enabling...
Oct 13 11:20:44 work kernel: [ 6972.357732] usb 1-1.4: USB disconnect, device
number 27
Oct 13 11:20:45 work kernel: [ 6972.590461] usb 1-1.4: new low-speed USB device
number 28 using ehci-pci
Oct 13 11:20:45 work kernel: [ 6972.686106] usb 1-1.4: New USB device found,
idVendor=093a, idProduct=2516
Oct 13 11:20:45 work kernel: [ 6972.686112] usb 1-1.4: New USB device strings:
Mfr=0, Product=2, SerialNumber=0
Oct 13 11:20:45 work kernel: [ 6972.686115] usb 1-1.4: Product: USB OPTICAL
MOUSE
Oct 13 11:20:45 work kernel: [ 6972.690293] input: USB OPTICAL MOUSE as
/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/0003:093A:2516.001D/input/input44
Oct 13 11:20:45 work kernel: [ 6972.690562] hid-generic 0003:093A:2516.001D:
input,hidraw1: USB HID v1.11 Mouse [USB OPTICAL MOUSE] on
usb-0000:00:1a.0-1.4/input0
Oct 13 11:20:45 work mtp-probe: checking bus 1, device 28:
"/sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4"
Oct 13 11:20:45 work mtp-probe: bus: 1, device: 28 was not an MTP device
The mouse stops to work until physically reconnect.
The mouse:
Bus 001 Device 023: ID 093a:2516 Pixart Imaging, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x093a Pixart Imaging, Inc.
idProduct 0x2516
bcdDevice 1.00
iManufacturer 0
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 79
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
when mouse is disappeared:
$ lsusb
Bus 002 Device 003: ID 05e3:0723 Genesys Logic, Inc. GL827L SD/MMC/MS Flash
Card Reader
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 047f:c010 Plantronics, Inc.
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
After reconnect:
$ lsusb
Bus 002 Device 003: ID 05e3:0723 Genesys Logic, Inc. GL827L SD/MMC/MS Flash
Card Reader
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 028: ID 093a:2516 Pixart Imaging, Inc.
Bus 001 Device 003: ID 047f:c010 Plantronics, Inc.
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
I found this: https://www.raspberrypi.org/forums/viewtopic.php?p=864077
which is similar to my problem
$ apt list --installed | grep mtp
libmtp-common/xenial,xenial,now 1.1.10-2ubuntu1 all [installed]
libmtp-runtime/xenial,now 1.1.10-2ubuntu1 amd64 [installed]
libmtp9/xenial,now 1.1.10-2ubuntu1 amd64 [installed]
libnet-smtp-ssl-perl/xenial,xenial,now 1.03-1 all [installed]
It seems MTP is devil here:
https://sourceforge.net/p/libmtp/bugs/435/
How this is resolved:
https://bbs.archlinux.org/viewtopic.php?pid=1015265#p1015265
But commenting out that will ignore MTP devices.
I found [this](https://askubuntu.com/a/506504/405408) which suggests to
put my device into `69-libmtp.rules`
Please exclude my device from MTP probe
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https://bugs.launchpad.net/bugs/1630063
Title:
specific USB devices disconnect and don't reconnect
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