Same bug here, with Ubuntu 16.04 and kernel 4.15.0-43 (LTS enablement stack) using Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c) on DELL inspiron 1525.
Tried with liveusb ubuntu 18.04.1 and same symptoms.
Under Ubuntu 16.04, adding "video=SVIDEO-1:d" solved the problem !
Same bug here, with Ubuntu 16.04 and kernel 4.15.0-43 (LTS enablement stack) using Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c) on DELL inspiron 1525.
Tried with liveusb ubuntu 18.04.1 and same symptoms.
Under Ubuntu 16.04, adding "video=SVIDEO-1:d" solved the problem !