Hi, We've been seeing a lot of issues with ELAN touch screens caused by the patch "Input: elants_i2c - Report resolution information for touch major". It turns out that the resolution of 1 unit per mm was not correct for a number of touch screens, causing touch sizes to be reported as way too large (e.g. in https://crbug.com/1085648). We've reverted that patch in our Kernel branches, but request that it be reverted upstream as well until ELAN can figure out a more accurate way to report the touch major resolution. Thanks, Harry Cutts Chrome OS Touch/Input team