Hi,
I had a Thomson X6 notebook, it's seems to be a Jumper Ebook 3 Pro
rebranded.
I compiled original kernel from kernel.org.
- With 4.14 RC7 version, movements, simple ou double tab click, 2 finger
gesture worked. But click buttons not.
- With 4.14 RC8 version, nothing works anymore ! I did some investigations.
I copied the "drivers/base" files from 4.14 RC7 to 4.14 RC8. I compiled the
custom kernel... and it works again (except click buttons).
- I did the same thing with the latest version currently available (4.14.41), I
had the same behavior.
- With 4.16 version, after startup/reboot, the touchpad is recognized in log
(dmesg) but it's not work. So, if I suspend and resume, gestures and even
buttons are working !
- From my 4.14.41 version already patched ("drivers/base" files from 4.14 RC7),
I copied "drivers/hid" and "drivers/input" files from 4.16.
Now, everything works : gesture and buttons after a first startup and after
suspend/resume.
I don't know if "drivers/input" files modifications are really necessary, I
will do a rollback and test later.
Obviously, I can't compile kernel if I replace files without minor
modifications.
I analyzed the code changes (drivers/base) between the 4.14 RC7 and 4.14 RC8
versions. There are only a few lines that have been modified.
So I made the reverse modifications in version 4.16, but without success.
Touchpad is still not work after startup/reboot but works only after
suspend/resume.
In all versions (4.14 RC7 original, 4.14 RC8 and 4.14.41 modified, 4.16
original), I still have error messages :
[ 6.326589] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/261)
[ 6.328725] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/8713)
[ 6.329796] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/261)
[ 6.333024] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/23334)
[ 6.334090] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/20745)
[ 6.337295] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/31302)
[ 6.338385] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/29952)
[ 6.342743] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(32/22281)
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1728244
Title:
Touchpad stops working after reboot on Apollo Lake
Status in Linux:
Unknown
Status in linux package in Ubuntu:
Triaged
Bug description:
On the Jumper EZBook 3 Pro (V4) laptop, using an Apollo Lake N3450
processor, if you install Ubuntu 17.10 (or less) with isorespin and
use rEFInd as bootloader (this is the only way to get linux booting on
this laptop) everything works out of the box, but after a reboot or
two the touchpad stops working. Both in Ubuntu and Windows 10. The
only way to restore functionality is to boot from usb key ubuntu 17.10
respined, or disassemble laptop and detach-reattach battery cable.
This is mesg | grep i2c_hid:
[ 2056.460636] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(27/34)
[ 3077.604699] i2c_hid i2c-SYNA3602:00: failed to reset device.
[ 3077.605473] dpm_run_callback(): i2c_hid_resume+0x0/0xe0 [i2c_hid] returns
-61
[ 3080.468156] i2c_hid i2c-SYNA3602:00: i2c_hid_get_input: incomplete report
(27/34)
uname -rvps
Linux 4.10.0-32-generic #36~16.04.1-Ubuntu SMP Wed Aug 9 09:19:02 UTC 2017
x86_64
There has to be a bug in the kernel. Any way to avoid this?
To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1728244/+subscriptions
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