I attached 3 files, with 2 recordings in case it can help. First one is with the bug, second one without the bug (patched xserver-xorg-core):
* "lenovo X201t props" is the result from evemu-describe,
* "lenovo X201t record" is the result from evemu-record (see #1)
* "lenovo X201t patched record" is the result from evemu-record (see #2)
#1: This recording is produced with the official xserver-xorg-core and xf86-input-wacom, using latest Oneiric. In Krita, the stylus gives either no pressure (When trying to draw on the canvas, the pointer moves but nothing is drawn), or I get the random lines appearing (when drawing in "Edit brush" preview zone) as described in comment #12 by klerfayt
#2: This recording is produced with same system as #1 but with xserver-xorg-core recompiled without the 503 and 504 patches (504 conflicts when 503 is not applied) - as described in my previous comment, and the stylus works correctly.
I attached 3 files, with 2 recordings in case it can help. First one is with the bug, second one without the bug (patched xserver-xorg-core):
* "lenovo X201t props" is the result from evemu-describe,
* "lenovo X201t record" is the result from evemu-record (see #1)
* "lenovo X201t patched record" is the result from evemu-record (see #2)
#1: This recording is produced with the official xserver-xorg-core and xf86-input-wacom, using latest Oneiric. In Krita, the stylus gives either no pressure (When trying to draw on the canvas, the pointer moves but nothing is drawn), or I get the random lines appearing (when drawing in "Edit brush" preview zone) as described in comment #12 by klerfayt
#2: This recording is produced with same system as #1 but with xserver-xorg-core recompiled without the 503 and 504 patches (504 conflicts when 503 is not applied) - as described in my previous comment, and the stylus works correctly.