Bug#853027: linux-image-4.9.0-1-amd64: I have the same problems with kernel 4.9 such as had 4.8
I experienced the same issue with Debian Stretch on an old Toshiba Satellite
A200 having the Intel GM965/GL960 Integrated Graphics Controller.
A workaround is to disable the SVIDEO connector (sources ) by adding
"video=SVIDEO-1:d" to to the kernel boot parameters. Also, it seems that
removing xserver-xorg-video-intel (which anyway shouldn't be needed for the
GM965/GL960 chipset) could help.