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  1. Bug #1526393
  2. Comment #22

Comment 22 for bug 1526393

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@pjf (paul-j-fenwick) wrote :

Update!

My trackpad works, and I don't know why. ;(

In particular, we're now seeing a ETPS/2 Elantech Touchpad in xinput, which wasn't there when I reported yesterday:

~$ xinput | head -4
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ Sunrex/JME Ghost Key Elimiantion Keyboard id=13 [slave pointer (2)]
⎜ ↳ ETPS/2 Elantech Touchpad id=15 [slave pointer (2)]

I'm running a 4.4.0 kernel:

~$ uname -a
Linux qapla 4.4.0-22-generic #40~14.04.1-Ubuntu SMP Fri May 13 17:27:45 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

My suspicion (based upon folks with Elantech touchpads messing with i8042 resets) is that my machine came directly from cold-boot to Linux today, whereas the touchpad yesterday had been after multiple reboots where I wrenched a disk from using legacy BIOS booting to UFI booting.

I shall continue to report as I learn more. :)