Bug#677164: [3.2.17-1 - 3.2.18-1 regression] Wacom tablet in Thinkpad x220t not working

[Nils Kanning]

On Thu, 2012-06-14 at 17:10 -0500, Jonathan Nieder wrote:
  patches 0020-0024: tablet works
  patches 0020-0024,0026: does not work
 
  Thanks!  How about 0026 alone?
 
 I'm still curious about this.

Ok, I will try to do this tomorrow. However, note that at least in
combination with 0020-0024 (which seem to be ok in this respect) patch
0026 causes problems.

 So for now, it seems that dropping 0025 and 0026 in wheezy is our
 safest bet.  Then 0026 can go through stable if appropriate.

Actually I also experienced some kind of strange behavior with
0020-0024, which I did not mention so far. Sometimes the system did
not boot. (With version 3.2.18 of linux-image-3.2.0-2-amd64 this also
happened especially after resuming from hibernate.) Maybe I can
reproduce this and get some log files.

The combination 0020-0023 seems to work fine for me, though.

Nils


signature.asc
Description: This is a digitally signed message part

Bug#671801: Wacom tablet in Thinkpad X220 Tablet not working with linux-image-3.2.0-2-amd64_3.2.18-1_amd64

[Nils Kanning]

Hello,
the wacom tablet in my Thinkpad x220t stopped working after the update
to linux-image-3.2.0-2-amd64_3.2.18-1_amd64. (The same also occurs with
the 3.4 kernel in sid.)

I am posting this as a comment to this bug because the changelog
indicates that this was the only wacom-related change from version 17 to
18.

lsusb knowns my tablet as
Bus 002 Device 004: ID 056a:00e6 Wacom Co., Ltd

With version 18 and above lsusb -t gives
Port 5: Dev 4, If 0, Class=HID, Driver=, 12M
instead of the expected
Port 5: Dev 4, If 0, Class=HID, Driver=wacom, 12M
and consequently the device does not work.

During booting I see the following in /dev/log/syslog:
input: Wacom ISDv4 E6 Pen
as /devices/pci:00/:00:1d.0/usb2/2-1/2-1.5/2-1.5:1.0/input/input7
However, afterwords the corresponding input directory and especially the
file input/input7 is not there.

Reloading the wacom module does not change the situation and only
produces the following in /dev/log/syslog:
usbcore: deregistering interface driver wacom
usbcore: registered new interface driver wacom
wacom: v1.53:USB Wacom tablet driver

After going back to version 17 of linux-image everything works again.

Best regards
Nils


signature.asc
Description: This is a digitally signed message part