Regression in 3.18/19?

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Regression in 3.18/19?

Sven Arvidsson
Hi,

I have a Wacom Bamboo Pen (CTL-470).

With Linux 3.16 it's working fine, in later kernels (3.18, 3.19) it
doesn't show up in the GNOME settings, and while I can use it as an
input, it has no pressure sensitivity.

Is this a known bug, or even something that's fixed in 3.19+, or should
I file a bug?

Thanks in advance,

--
Cheers,
Sven Arvidsson
http://www.whiz.se
PGP Key ID 6FAB5CD5



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Re: Regression in 3.18/19?

Jason Gerecke
On 3/20/2015 1:08 PM, Sven Arvidsson wrote:

> Hi,
>
> I have a Wacom Bamboo Pen (CTL-470).
>
> With Linux 3.16 it's working fine, in later kernels (3.18, 3.19) it
> doesn't show up in the GNOME settings, and while I can use it as an
> input, it has no pressure sensitivity.
>
> Is this a known bug, or even something that's fixed in 3.19+, or should
> I file a bug?
>
> Thanks in advance,
>

Apologies for the delay in replying; this dropped out of sight and I
only just now noticed it.

Is the only difference the kernel used, or did you upgrade anything
else? We did migrate our kernel driver from the "input" subsystem to the
"HID" subsystem in Linux 3.17, but we haven't received reports of any
issues that sound similar to yours in that time.

The symptoms you describe make me think the xf86-input-wacom driver
isn't binding to your tablet. While that /could/ be caused by a kernel
bug, its somewhat unlikely. Do you see anything when you run `xsetwacom
list`? If you have the 'xinput' program installed, what do you see when
you run `xinput list`?

It might also be handy to attach the output of `dmesg` as well as your
Xorg log (potentially in journalctl[1], ~/.local/share/xorg/Xorg.0.log,
or /var/log/Xorg.0.log)

[1]: http://who-t.blogspot.com/2014/03/viewing-xorglog-with-journalctl.html

--
Jason
---
Now instead of four in the eights place /
you’ve got three, ‘Cause you added one /
(That is to say, eight) to the two, /
But you can’t take seven from three, /
So you look at the sixty-fours....

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Re: Regression in 3.18/19?

Sven Arvidsson
On Wed, 2015-04-29 at 13:33 -0700, Jason Gerecke wrote:
> Apologies for the delay in replying; this dropped out of sight and I
> only just now noticed it.
>
> Is the only difference the kernel used, or did you upgrade anything
> else? We did migrate our kernel driver from the "input" subsystem to the
> "HID" subsystem in Linux 3.17, but we haven't received reports of any
> issues that sound similar to yours in that time.

Hi,

You probably missed my last reply to the mailing list. I was using the
libwacom shipped in Debian unstable, 0.8 at the time. After upgrading to
0.12 it is working fine with kernel 3.19!

--
Cheers,
Sven Arvidsson
http://www.whiz.se
PGP Key ID 6FAB5CD5



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Performance metrics, stats and reports that give you Actionable Insights
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