The OS can't detect the qxl video driver. The display resolution
can't be changed not to mention adjust automatically.
Try to solve it by kill X,then reconfigure it.
init 3
after relogin
X -configure
It keep complains
X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-97-generic x86_64 Ubuntu
Current Operating System: Linux station167 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-62-generic root=UUID=355663b7-9481-4414-bcb9-4ee9b76c4a6b ro
Build Date: 13 October 2017 01:57:05PM
xorg-server 2:1.18.4-0ubuntu0.7 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.33.6
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Jan 20 09:50:48 2018
List of video drivers:
amdgpu
ati
intel
nouveau
qxl
radeon
vmware
modesetting
vesa
fbdev
(II) [KMS] Kernel modesetting enabled.
No devices to configure. Configuration failed.
(EE) Server terminated with error (2). Closing log file.