I was having a similar problem on my x201: I had to press "too much" for it to detect pressure. I decided to "open" the pen, I didn't care if it was going to break it in the process... I didn't want to use it the way it was. I found this blog post encouraging: http://wishidknownthat.blogspot.com/2009/04/fixing-wacom-bamboo-pen.html , specially this image: http://3.bp.blogspot.com/_Cwn5bYjARyo/SdgYuxYlQXI/AAAAAAAABSc/P9l4fUtE1eI/s1600-h/IMG_3895.jpg .
I took the pen's button out using a small screwdriver , see http://jpen.sourceforge.net/extra/openingX201Pen.png and http://jpen.sourceforge.net/extra/x201PenOpen.png . Sorry for the crappy images, my webcam is not good for closeups. I messed with a screw (potentiometer?) found inside the pen next to the button's switch and found that turning it clockwise just a little (1/12 of a turn is enough to notice the effect) the pen became less sensitive and counterclockwise it became more sensitive, turning it too much counterclockwise it began to register pressure when tilting. Now my pen has a dent on the side of the button (where I applied pressure... the button didn't come out easily) but it is not serious for me, and the pressure sensitivity is better. WARNING: I'm just exposing my case and I'm not responsible for anyone breaking his pen or button. I guess it is easy to break the button, it was not designed to be taken out. If the tablet is on warranty then it's probably better trying to replace the pen as this could be considered a manufacturing/design defect. Cheers! Nicolas On Thursday 20 January 2011 7:30:54 am AndrewP wrote: > Finally I saw maxZ=255 in Xorg.0.log when set maxZ to 255 in git drivers > also xinput shows level 2048 when I press much stronger. But still it > catches > pressure very willingly: > I get values about 800-1000 with light press. > 0-168 when not even touching it. Don't see anything wrong when holding pen > exactly straight up. But when holding in my natural way it's even up to > 168. If I tilt it > even more I get values around 600-800 easily (no touching). > After values of 1600 it feels pretty linear. > > Tried several Threshold values as it should be it affect only when "click" > is actually > recognized, thus limiting a pressure range. > > On Wed, Jan 19, 2011 at 15:02, Chris Bagwell <[email protected]> wrote: > > On Tue, Jan 18, 2011 at 4:18 PM, AndrewP <[email protected]> wrote: > > > How do I tell if some other driver is using the device? > > > I removed tablet device from xorg.conf > > > and I guess inputattch won't keep working if serial port is already > > > used. I get pressure in gimp but it feels way less then even 127 > > > levels. of > > > > course > > > > > it is very > > > subjective but I get around 30-40 levels and I need to press really > > > light > > > > to > > > > > be able > > > to use it. > > > > After you upgraded to latest git, you did not re-patch wcmISDV4.cc to > > force MaxZ to 254. Can you do that and try gimp again? > > > > Please realize that without this change that pressure of 127 to 254 > > will all equal 2048. Also, what did you end up setting your Threshold > > to? Somewhere around 800? > > > > Divide what ever that Threshold value is by 16. Example: 800/16=50. > > So this example means that only pressures of 50-127 are useful for > > drawing. A very small range indeed and very much shifted to light > > pressure side. > > > > If you change MaxZ=254 then it becomes 800/8=100 so 100-254 are valid > > pressure ranges. A much greater range. You'll want to also adjust > > your Threshold value down by 1/2 since Thresholds are different units > > once the MaxZ=127 bug is fixed (the 16 vs 8 I mentioned). So halving > > to Threshold=400 would give you pressure ranges of 50-254. > > > > Chris ------------------------------------------------------------------------------ Protect Your Site and Customers from Malware Attacks Learn about various malware tactics and how to avoid them. Understand malware threats, the impact they can have on your business, and how you can protect your company and customers by using code signing. http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ Linuxwacom-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linuxwacom-devel
