[ubuntu] Ubuntu 14.04 to 16.04 Radeon HD 5770 but basic display functionality does not work

[ 5786.223] (**) ModulePath set to "/usr/lib/xorg/modules"
[ 5786.223] (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[ 5786.223] (WW) Disabling Mouse0
[ 5786.223] (WW) Disabling Keyboard0
[ 5786.223] (II) [KMS] drm report modesetting isn't supported.
[ 5786.223] (EE)
[ 5786.223] (EE) Backtrace:
[ 5786.223] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4e) [0x5581fdedc5ce]
[ 5786.223] (EE) 1: /usr/lib/xorg/Xorg (0x5581fdd2a000+0x1b6959) [0x5581fdee0959]
[ 5786.223] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fcc5f18c000+0x354a0) [0x7fcc5f1c14a0]
[ 5786.223] (EE)
[ 5786.223] (EE) Segmentation fault at address 0x0
[ 5786.223] (EE)
Fatal server error:
[ 5786.223] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 5786.223] (EE)
[ 5786.223] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org