Public bug reported:

Similar issue to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1784152, however
the fix in 4.18 does not seem to work for this one.

When using the pen included with the HP Spectre x360 13" and
libinput1.10 or libinput 1.12, dmesg is flooded with:

...
[   87.571189] i2c_hid i2c-ELAN2514:00: i2c_hid_get_input: incomplete report 
(67/65535)
[   87.577156] i2c_hid i2c-ELAN2514:00: i2c_hid_get_input: incomplete report 
(67/65535)
[   87.586621] i2c_hid i2c-ELAN2514:00: i2c_hid_get_input: incomplete report 
(67/65535)
[   87.600126] i2c_hid i2c-ELAN2514:00: i2c_hid_get_input: incomplete report 
(67/65535)
[   87.645181] i2c_hid i2c-ELAN2514:00: i2c_hid_get_input: incomplete report 
(67/65535)
[   87.647241] i2c_hid i2c-ELAN2514:00: i2c_hid_get_input: incomplete report 
(67/65535)
...

Please see attached details. At first, the pen functions normally,
however after approximately 1 minute of use, it will continue to move
windows but loses writing and drawing capabilities in applications.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "dmesg2.log"
   https://bugs.launchpad.net/bugs/1819389/+attachment/5245274/+files/dmesg2.log

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https://bugs.launchpad.net/bugs/1819389

Title:
  i2c_hid_get_input: incomplete report in v5.0.0

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