[SRU] [B/C/D/Unstable] [PATCH 0/2] Fix and issue that LG I2C touchscreen stops working after reboot

Kai-Heng Feng kai.heng.feng at canonical.com
Tue Nov 27 06:59:06 UTC 2018


BugLink: https://bugs.launchpad.net/bugs/1805085

[Impact]
LG I2C touchscreen stops working after reboot.

[Fix]
Disable runtime PM for the touchscreen, which doesn't work well with
consecutive ON/SLEEP commands.

[Test]
The touchscreen works well after reboot, when runtime PM is disabled.

[Regression Potential]
None. This is a new device and the fix is limited to this particular
device.

Anisse Astier (1):
  HID: i2c-hid: disable runtime PM operations on hantick touchpad

Kai-Heng Feng (1):
  HID: i2c-hid: Disable runtime PM for LG touchscreen

 drivers/hid/hid-ids.h         |  1 +
 drivers/hid/i2c-hid/i2c-hid.c | 13 ++++++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

-- 
2.17.1




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