Ubuntu
linux package

  1. Bug #1635177
  2. Comment #0

Comment 0 for bug 1635177

Revision history for this message
Ying-Chun Liu (paulliu) wrote :

We need this patch for all Apollo Lake platforms for enabling the touchpad.
This patch was cherry-picked from c50cdd62dda3f885c1e6ca8b3d5a0851c911ec54. And later backported to 4.4 kernel.
It is because for Apollo Lake, the default freq/falling-time is incorrect. So it makes the i2c acts weird.

Please consider SRU this commit.

Impact:
  All touchpad on Apollo Lake work unstable on i2c mode. PS/2 mode doesn't affected.

Fix:
  touchpad works good on i2c mode.

Tested:
  The patch is tested on many Dell ApolloLake laptops and works good.