Tablet Keeps Disconnecting (Linux)
I had been using a Wacom tablet with Linux for a long time without any trouble. But after upgrading my desktop, the tablet keeps disconnecting sporadically.
To rule out a problem with the tablet itself, we even bought a new one (https://www.amazon.com/dp/B079J7DCXN -- Wacom Intuos S BT (2018) - CTL-4100WL).
We get messages on Xorg.0.log, but nothing that helps find out why it happens:
[ 2194.947] (EE) Wacom Intuos BT S Pad pad: Error reading wacom device : No such device
[ 2194.948] (II) config/udev: removing device Wacom Intuos BT S Pad pad
[ 2194.950] (II) UnloadModule: "wacom"
[ 2194.980] (EE) Wacom Intuos BT S Pen stylus: Error reading wacom device : No such device
[ 2194.980] (II) config/udev: removing device Wacom Intuos BT S Pen stylus
[ 2194.982] (II) UnloadModule: "wacom"
[ 2195.086] (II) config/udev: Adding input device Wacom Intuos BT S Pen (/dev/input/mouse2)
[ 2195.086] (II) No input driver specified, ignoring this device.
[ 2195.086] (II) This device may have been added with another device file.
[ 2195.087] (II) config/udev: Adding input device Wacom Intuos BT S Pad (/dev/input/js0)
[ 2195.087] (II) No input driver specified, ignoring this device.
[ 2195.087] (II) This device may have been added with another device file.
[ 2195.173] (II) config/udev: Adding input device Wacom Intuos BT S Pen (/dev/input/event7)
[ 2195.173] (**) Wacom Intuos BT S Pen: Applying InputClass "libinput tablet catchall"
[ 2195.173] (**) Wacom Intuos BT S Pen: Applying InputClass "Wacom USB tablet class"
[ 2195.173] (II) Using input driver 'wacom' for 'Wacom Intuos BT S Pen'
[ 2195.173] (**) Wacom Intuos BT S Pen: always reports core events
[ 2195.173] (**) Option "Device" "/dev/input/event7"
[ 2195.224] (II) wacom: Wacom Intuos BT S Pen: type not specified, assuming 'stylus'.
[ 2195.224] (II) wacom: Wacom Intuos BT S Pen: other types will be automatically added.
[ 2195.224] (**) wacom: Wacom Intuos BT S Pen stylus: Smooth panscrolling is enabled
[ 2195.224] (--) wacom: Wacom Intuos BT S Pen stylus: using pressure threshold of 851 for button 1
[ 2195.224] (**) wacom: Wacom Intuos BT S Pen stylus: panscroll is 0
[ 2195.224] (**) wacom: Wacom Intuos BT S Pen stylus: panscroll modified to 1300
[ 2195.224] (--) wacom: Wacom Intuos BT S Pen stylus: maxX=15200 maxY=9500 maxZ=4095 resX=100000 resY=100000 tilt=enabled
[ 2195.224] (II) wacom: Wacom Intuos BT S Pen stylus: hotplugging dependent devices.
[ 2195.224] (II) wacom: Wacom Intuos BT S Pen stylus: hotplugging completed.
[ 2195.250] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0c:00.0/usb1/1-4/1-4.2/1-4.2.1/1-4.2.1:1.0/0003:056A:03C5.0008/input/input29/event7"
[ 2195.250] (II) XINPUT: Adding extended input device "Wacom Intuos BT S Pen stylus" (type: STYLUS, id 9)
[ 2195.250] (**) Wacom Intuos BT S Pen stylus: (accel) keeping acceleration scheme 1
[ 2195.250] (**) Wacom Intuos BT S Pen stylus: (accel) acceleration profile 0
[ 2195.250] (**) Wacom Intuos BT S Pen stylus: (accel) acceleration factor: 2.000
[ 2195.250] (**) Wacom Intuos BT S Pen stylus: (accel) acceleration threshold: 4
[ 2195.303] (II) config/udev: Adding input device Wacom Intuos BT S Pad (/dev/input/event8)
[ 2195.303] (**) Wacom Intuos BT S Pad: Applying InputClass "libinput tablet catchall"
[ 2195.303] (**) Wacom Intuos BT S Pad: Applying InputClass "Wacom USB tablet class"
[ 2195.303] (II) Using input driver 'wacom' for 'Wacom Intuos BT S Pad'
[ 2195.303] (**) Wacom Intuos BT S Pad: always reports core events
[ 2195.303] (**) Option "Device" "/dev/input/event8"
[ 2195.303] (II) wacom: Wacom Intuos BT S Pad: type not specified, assuming 'pad'.
[ 2195.303] (II) wacom: Wacom Intuos BT S Pad: other types will be automatically added.
[ 2195.303] (**) wacom: Wacom Intuos BT S Pad pad: Smooth panscrolling is enabled
[ 2195.303] (**) wacom: Wacom Intuos BT S Pad pad: panscroll is 0
[ 2195.303] (**) wacom: Wacom Intuos BT S Pad pad: panscroll modified to 1000
[ 2195.303] (II) wacom: Wacom Intuos BT S Pad pad: hotplugging dependent devices.
[ 2195.303] (II) wacom: Wacom Intuos BT S Pad pad: hotplugging completed.
[ 2195.332] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:02.1/0000:05:00.0/0000:06:0c.0/0000:0c:00.0/usb1/1-4/1-4.2/1-4.2.1/1-4.2.1:1.0/0003:056A:03C5.0008/input/input31/event8"
[ 2195.332] (II) XINPUT: Adding extended input device "Wacom Intuos BT S Pad pad" (type: PAD, id 10)
[ 2195.332] (**) Wacom Intuos BT S Pad pad: (accel) keeping acceleration scheme 1
[ 2195.332] (**) Wacom Intuos BT S Pad pad: (accel) acceleration profile 0
[ 2195.332] (**) Wacom Intuos BT S Pad pad: (accel) acceleration factor: 2.000
[ 2195.332] (**) Wacom Intuos BT S Pad pad: (accel) acceleration threshold: 4
I am running Debian Sid. I have installed:
libwacom-bin/unstable,now 2.14.0-1 amd64 [installed]
Wacom model feature query library -- binarieslibwacom-common/unstable,unstable,now 2.14.0-1 all [installed]
Wacom model feature query library (common files)libwacom-dev/unstable,now 2.14.0-1 amd64 [installed]
Wacom model feature query library (development files)libwacom9/unstable,now 2.14.0-1 amd64 [installed]
Wacom model feature query libraryxserver-xorg-input-wacom/unstable,now 1.2.3-1 amd64 [installed]
X.Org X server -- Wacom input driver
Does anyone have any ideas or suggestions?
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Hello Luis Finotti,
Thanks for reaching out. I have not seen or heard about a similar issue yet. It is worth considering this could simply be an unstable connection.
Just to be clear, are you connecting the tablet via USB? If yes, is the LED lighting up and stable? If there is a USB connection issue (could be a problem with a USB port) the LED might turn OFF, or dim considerably (if there's insufficient power). Also I am not sure how power management works on Linux, but might be worth looking into.
If you are using Bluetooth connection, it could also be due to interference in the environment.
Please check our guide here if that's the case: https://support.wacom.com/hc/en-us/articles/1500006335342-How-to-optimize-Bluetooth-performance-with-Wacom-Tablets
If none of the above helps, please try checking with the Linux community: https://support.wacom.com/hc/en-us/articles/4418603736983-How-can-I-get-additional-support-for-using-my-Wacom-devices-under-Linux
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Hi, João! Thanks for your help.
I am connecting via USB. The light stays on and strong, from what I remember, but I will pay more attention to it. Maybe I will try bluetooth, although it seems counter-intuitive that it would be more stable.
If nothing helps, I will check with the Linux community.
Thanks for your help!
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