I am a relatively inexperienced Ubuntu user: Some time ago I updated my Ubuntu 14.04 LTS and after restarting the system, both my monitors (connected with DVI and HDMI ports) reported that the signal is lost. I was able to get the monitors working again booting with an old kernel.
However, the support for this kernel ended in August 2016 and I should probably find a solution that works with the latest kernels. Hence, I decided to upgrade to Ubuntu 16.04.1 LTS but it lead to a situation where the monitors lost the signal when I installed/boot up the computer. I managed to get the signal back to my screens by setting thenomodeset option in the grub menu.
Unfortunately, now both monitors show the same view which is not what I would like to have.
Does anybody have an idea how to get a continuous dual display working again with the latest kernels? Here is the output of lshw -c video:
*-display UNCLAIMED
description: VGA compatible controller
product: Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list
configuration: latency=0
resources: memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64)
and my kernel is now 4.4.0-45-generic (the ubuntu release is 16.04.1 LTS). I have tried to reinstall the graphics drivers using
sudo apt-get install --reinstall xserver-xorg-video-intel xserver xorg-core
sudo dpkg-reconfigure xserver-xorg
But it doesn't seem to help me although I removed the nomodeset option temporarily in order to test the system.
Do you have any ideas or suggestions?
