Comment 9 for bug 1639517

Upstream kernel test - kernel 4.11-rc2

installation:
when installing, error message: header file not installed;
dpkg -i displays header file 4.11-rc2.

results:
backlight change similar that reported on 2017-02-26.
dmesg - 1 of the error messages:
      Direct firmware load for amdgpu/topaz_k_smc.bin failed with error -2

brightness adjustment: not possible

remote login: > 4 minutes after entering grub-selection (kernel 4.4, ubuntu 16.04.1 about 1 minute (not 2))
booting (workaround): <1 minute