Dear Greg,
On 02/08/17 14:02, Greg KH wrote:
On Wed, Feb 08, 2017 at 12:16:44PM +0100, Paul Menzel wrote:
On the server Dell PowerEdge R730 with firmware 2.3.4, and Linux 4.9.2, the
connected USB mouse disconnects and connects again periodically. This can be
reproduced with two different (Logitech) mice.
```
$ more /proc/version
Linux version 4.9.0-1-amd64 (debian-kernel@xxxxxxxxxxxxxxxx) (gcc version
6.3.0 20161229 (Debian 6.3.0-2) ) #1 SMP Debian 4.9.2-2 (2017-01-12)
$ journalctl -o short-precise -k -f
[…]
Feb 08 12:00:16.193817 poweredger730 kernel: usb 3-2: USB disconnect, device
number 84
Looks like a hardware issue, the kernel can not cause a device to
disconnect itself.
Especially as this happens with two different mice, you might want to
see if there's something wrong with that port.
With three devices of the Logitech model 046d:c077 (Logitech, Inc. M105
Optical Mouse) the problem could be reproduced on each USB port.
I am unable to reproduce it with 03f0:2c24 (Hewlett-Packard Logitech
M-UAL-96 Mouse).
```
$ lsusb
Bus 004 Device 002: ID 8087:8002 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:800a Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 413c:2107 Dell Computer Corp.
Bus 001 Device 006: ID 413c:a102 Dell Computer Corp.
Bus 001 Device 005: ID 0624:0250 Avocent Corp.
Bus 001 Device 004: ID 413c:a001 Dell Computer Corp. Hub
Bus 001 Device 003: ID 03f0:2c24 Hewlett-Packard Logitech M-UAL-96 Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ lsusb -v -s 001:003
Bus 001 Device 003: ID 03f0:2c24 Hewlett-Packard Logitech M-UAL-96 Mouse
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x03f0 Hewlett-Packard
idProduct 0x2c24 Logitech M-UAL-96 Mouse
bcdDevice 31.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 98mA
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 1.10
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 71
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 0x0006 1x 6 bytes
bInterval 10
```
My guess is, that this points to a firmware problem, where the USB ports
are badly configured, and don’t meet all specifications?
Is there a way to get logs for that, to “proof” to the Dell support,
that the firmware is at fault and to avoid the usual dance, where they
say, the Linux kernel version is not supported, and you should try it on
Microsoft Windows and so on?
Kind regards,
Paul
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