Comment 7 for bug 1513297

I downloaded the following:
linux-headers-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb
linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb
I installed them with
sudo dpkg -i linux-headers-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb linux-image-4.3.0-040300-generic_4.3.0-040300.201511020949_amd64.deb
and got an error like in error-both.txt.
I tried to install just the header and got an error like in error-header.txt. I tried installing them again and got the same thing. I rebooted and didn't catch the grub menu. Neither the laptops keyboard nor the touchpad worked. I plugged in an external keyboard and that worked. I edited /etc/defaults/grub to show the grub menu. I rebooted and picked the 4.3.0-040300-generic... kernel from the grub menu.
Now I'm in 4.3.0-040300-generic and the keyboard works but not the touchpad is not responsive at all.
$ uname -r
4.3.0-040300-generic
Were the errors misleading and the kernel installed correctly? Did I download the correct kernel? Was this the latest kernel? Do I test any more kernels or just add the tags as per your previous instructions?

Thank you for your help!