Public bug reported:
I have just upgraded to 14.04 from 13.10.
I have a wacom cth-480 touch+pen tablet, which was not recognized on
13.10 (kernel 3.11). With the stock kernel from 14.04, I have an
immediate kernel panic as soon as I plug in the tablet to the laptop.
The system is a asus 1005PE (32 bit install), Xubuntu, up-to date: Linux
asus-romano 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:08:14 UTC
2014 i686 i686 i686 GNU/Linux
The really strange thing is that if I manually load the driver with
`sudo modprobe wacom` *before* pluggin the tablet in, then the tablet is
recognized and works ok:
SYS: Apr 21 15:15:47 asus-romano kernel: [ 265.664161] usbcore: registered new
interface driver wacom
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.088161] usb 2-1: new full-speed
USB device number 2 using uhci_hcd
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253626] usb 2-1: New USB device
found, idVendor=056a, idProduct=0302
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253641] usb 2-1: New USB device
strings: Mfr=1, Product=2, SerialNumber=0
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253651] usb 2-1: Product:
Intuos PTS
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253659] usb 2-1: Manufacturer:
Wacom Co.,Ltd.
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.257027] input: Wacom Intuos PT
S Pen as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.0/input/input14
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.260630] input: Wacom Intuos PT
S Finger as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.1/input/input15
SYS: Apr 21 15:15:52 asus-romano mtp-probe: checking bus 2, device 2:
"/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1"
SYS: Apr 21 15:15:52 asus-romano mtp-probe: bus: 2, device: 2 was not an MTP
device
A screenshot of the kernel panic is added. I can reproduce it at will.
** Affects: linux-meta (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "Screenshot of the kernel panic log."
https://bugs.launchpad.net/bugs/1310800/+attachment/4091720/+files/kernel-panic-on-tablet-plugin.jpg
** Summary changed:
- Trusty Thar: automatic load of wacom.ko driver cause a "hard"kernel panic
+ Trusty Thar, kernel 3.13: automatic load of wacom.ko driver cause a "hard"
kernel panic
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https://bugs.launchpad.net/bugs/1310800
Title:
Trusty Thar, kernel 3.13: automatic load of wacom.ko driver cause a
"hard" kernel panic
Status in “linux-meta” package in Ubuntu:
New
Bug description:
I have just upgraded to 14.04 from 13.10.
I have a wacom cth-480 touch+pen tablet, which was not recognized on
13.10 (kernel 3.11). With the stock kernel from 14.04, I have an
immediate kernel panic as soon as I plug in the tablet to the laptop.
The system is a asus 1005PE (32 bit install), Xubuntu, up-to date:
Linux asus-romano 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:08:14
UTC 2014 i686 i686 i686 GNU/Linux
The really strange thing is that if I manually load the driver with
`sudo modprobe wacom` *before* pluggin the tablet in, then the tablet
is recognized and works ok:
SYS: Apr 21 15:15:47 asus-romano kernel: [ 265.664161] usbcore: registered
new interface driver wacom
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.088161] usb 2-1: new
full-speed USB device number 2 using uhci_hcd
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253626] usb 2-1: New USB
device found, idVendor=056a, idProduct=0302
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253641] usb 2-1: New USB
device strings: Mfr=1, Product=2, SerialNumber=0
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253651] usb 2-1: Product:
Intuos PTS
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.253659] usb 2-1:
Manufacturer: Wacom Co.,Ltd.
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.257027] input: Wacom Intuos
PT S Pen as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.0/input/input14
SYS: Apr 21 15:15:52 asus-romano kernel: [ 270.260630] input: Wacom Intuos
PT S Finger as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.1/input/input15
SYS: Apr 21 15:15:52 asus-romano mtp-probe: checking bus 2, device 2:
"/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1"
SYS: Apr 21 15:15:52 asus-romano mtp-probe: bus: 2, device: 2 was not an MTP
device
A screenshot of the kernel panic is added. I can reproduce it at will.
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