Red Hat Bugzilla – Bug 613951
Wacom Bamboo CTH-460 doesn't work
Last modified: 2012-07-15 08:06:49 EDT
Description of problem:
Wacom Bamboo CHT-460 doesn't work
Steps to Reproduce:
It doesn't work
It should work
If you build manually latest linuxwacom wacom.ko driver, it works.
The linuxwacom authors should be pushing their updates into the upstream linux kernel.
Also, tapping doesn't work.
Initial bamboo support is in the queue now:
I have this working in the rawhide kernel. In order to get the pen & touch working you also need to rename xorg.conf.d/50-wacom.conf to 40-wacom.conf so that the synaptics driver claims the touchpad part of the tablet.
(In reply to comment #4)
> I have this working in the rawhide kernel. In order to get the pen & touch
> working you also need to rename xorg.conf.d/50-wacom.conf to 40-wacom.conf so
> that the synaptics driver claims the touchpad part of the tablet.
Peter, are there any drawbacks to renaming that file? Could it cause a bug on a machine without Wacom devices?
I believe renaming 50-wacom.conf would cause Wacom Tablet PC's touch interface to also be remapped to xf86-input-synaptics and touch would stop working. Those use a special set of events that confuse xf86-input-synaptics.
I believe long term (2.6.37 or later) the Tablet PC events will be aligned with Bamboo touch events and use MT. Then it would be OK to rename file.
But then again I'm working on a set of patches that will allow the above kernel patches to work with xf86-input-wacom which reduces need to rename file.
Chris, what configuration do you currently use for your tablet? So that it gets picked up by synaptics correctly?
Any reason we couldn't use the same config in fedora?
I don't worry about Tablet PC since I don't have one so I just rename 50-wacom.conf as well. To test xf86-input-multitouch, I do add following:
Identifier "Wacom class"
The above I'm sure also matches Tablet PC's which would be bad because at least Tablet PC drivers ship with fedora kernels today and so work out of the box.
Once we get Bamboo MT drivers in Fedora kernel then I think we could ship 50-wacom.conf with something like above but make MatchProduct more specific to not catch Tablet PC's.
I haven't figured out were Product values are from. If its from kernel driver then we could limit by saying MatchProduct "Wacom USB Bamboo". If its from USB Product ID then its harder.
Also, I've not tried Rawhides kernel recently but Fedora 14 branch does not have the Bamboo MT drivers in kernel yet. I do not believe 2.6.36 contains them either and so rawhide would have needed to port over above listed patches for touch and my 5 patches for stylus from linux-input next.
I'd not recommend doing any changes until Bamboo MT drivers are in a fedora kernel because all the recommended xorg.conf.d changes in this report are not compatible with Bamboo kernel drivers that ship with linuxwacom.
A little extra information on "Tablet PC". Wacom Tablet PC's create 2 /dev/input/event's like Bamboo. 1 is detected by udev as tablet (has BTN_TOOL_FINGER) and the other is detect by udev as touchpad (has BTN_TOUCH and not much else).
Even though this later /dev/input/event looks touchpad-ish, it is very much not and xf86-input-synaptics doesn't work with it (cursor doesn't move at all).
So this is downside of renaming 50-wacom.conf to 40-wacom.conf since it would assign to synaptics.
I believe Ping is on board with submitting patches to upstream to make that touchpad-ish device to truly become compatible with xf86-input-synaptics but doesn't have time to any time soon. Perhaps someone with Tablet PC could help develop and submit earlier (I do not have one).
Once thats done, it probably is a better idea to rename 50-wacom.conf to 40-wacom.conf instead of using work arounds as listed in comment #8.
minor point, i think you mistyped your model number.
i have a CTH-460/K which i am guessing is also what you have, and which doesnt work yet.
however the subject line calls out a 'CHT' instead of 'CTH',
i am guessing this is a typo. if it is truly a typo could you update the subject model name to CTH please. thanks.
CTE: Graphire4/Graphire3/Graphire Wireless/BambooFun
CTH: Bamboo Pen & Touch/Bamboo Craft/Bamboo Fun
CTL: Bamboo Pen
CTT: Bamboo Touch
DTZ or DTK: Cintiq 21UX
PL: Cintiq 15X/Cintiq 18SX/PL Series
PTU: Cintiq Partner
SD: SD Series
UD: ArtZ/ArtZ II/UD Series
*** Bug 655444 has been marked as a duplicate of this bug. ***
cth-460/k looks to be working in rawhide f15 kde:
Yep, Bamboo support is in kernel 2.6.37 and at least xf86-input-wacom 0.10.10. The device is fully supported by xf86-input-wacom and touchpad doesn't require remapping to synaptics (although you can if you prefer its behaviour). So this bug report can be closed now.
There maybe 1 very new special edition Bamboo device that will only work with 2.6.39 once thats released but thats life with new hardware (no change to xf86-input-wacom will be needed).
doh, in f15-gnome the cursor doesnt seem to respond to finger movement any more
but pen still works
For comment #14, I think your hitting bug #697986 now. xf86-input-wacom driver should be working fine for Bamboo.
The issue is in gnome-settings-daemon now. Running this command should fix it:
gsettings set org.gnome.settings-daemon.peripherals.wacom touch true
A fix has already made it to updates-testing *but* I think for pre-existing users you must still issue above command to fix the default values already installed.
Closing as CURRENTRELEASE, bamboos work in F15 now.
The touch behaviour is as Chris said is bug 697986 but in your case you need to manually change it now.
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(In reply to comment #10)
> minor point, i think you mistyped your model number.
> i have a CTH-460/K which i am guessing is also what you have, and which
> doesnt work yet.
> however the subject line calls out a 'CHT' instead of 'CTH',
> i am guessing this is a typo. if it is truly a typo could you update the
> subject model name to CTH please. thanks.
Sorry, you're right, it's a typo. Fixed.