My Pixel 3 XL touch panel doesn't work after the kernel has been replaced

[Chingbin Li]

Hello:

I build a 'crosshatch' kernel by excuting

build/build.sh -j20

Also, for improving the building speed, i disable the LTO (Link time optimization) feature by

add the following content to build.config file:

POST_DEFCONFIG_CMDS="check_defconfig && update_debug_config"
function update_debug_config() {
    ${KERNEL_DIR}/scripts/config --file ${OUT_DIR}/.config \
         -d LTO \
         -d LTO_CLANG \
         -d CFI \
         -d CFI_PERMISSIVE \
         -d CFI_CLANG
    (cd ${OUT_DIR} && \
     make O=${OUT_DIR} $archsubarch CC=${CC} CROSS_COMPILE=${CROSS_COMPILE} olddefconfig)
}

So, after flash the new boot.img to my Pixel 3 XL, i found that the touch panel didn't work any more.

Before this step, I build my Image.lz4-dtb with the LTO feature. and every thing  just worked well.

So any suggestions about this situation ?????

Thanks a lot .

[icet]

hi, 

Maybe you can try the following method:

1. find the ko in `dist`, like `out/android-msm-floral-4.14/dist

2. execute `adb remount -R`(need root permission), the first time to execute it will cause once reboot, so you need execute this command again.

3. use adb to push all `.ko` files which in  to `/vendor/lib/modules/` (need root permission)

4. reboot device