Fix monitor with broken EDID

03 May 2017

Issue description

Monitor’s EDID is damaged and Ubuntu is running at lower resolution

How to fix

Read timing from a working monitor (same mode)
```
sudo get-edid | parse-edid
```

Create a new script /etc/lightdm/video-mode with desired timing

#!/bin/sh

/usr/bin/xrandr --newmode FHD 148.50 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
/usr/bin/xrandr --addmode DisplayPort-0 FHD

Add the following line at the end of /etc/lightdm/lightdm.conf to autoload the timing
```
display-setup-script=/etc/lightdm/video-mode
```