This is the lspci. I booted with a standard ubuntu X.org config, to
generate this two files and explain more deeply the source of the
problem.
The detail of the device (could be an hardware problem on the device or
motherboard) :
(I made a mistake in my previous comment, it was not detected in lsusb) before
I unplug/replug it.
Anyway an hotplug detection by X.org of serial tablet (via usb or direct
serial) could be better for the overall hotplug system. I suppose some
other serial devices has the same kind of hotplug problem.
wacdump /dev/ttyUSB0 see immediatly the model of my wacom :
MODEL=Wacom Intuos 9x12 ROM=1.1-7
CLS=Serial VNDR=Wacom DEV=Intuos SUB=GD-0912-R
Then this can be autodetected.
Bus 002 Device 005: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x067b Prolific Technology, Inc.
idProduct 0x2303 PL2303 Serial Port
bcdDevice 2.02
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x000a 1x 10 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)
** Attachment added: "lspci.txt"
http://launchpadlibrarian.net/31460065/lspci.txt
--
X.org doesn't hotplug wacom serial tablets
https://bugs.launchpad.net/bugs/424620
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