set up external monitor for laptop
I am trying to set up a second monitor for my Dell G5 laptop.
Ubuntu version 18.04 LTS.
However, I am struck at this:
What I tried so far is:
Download Gnome-Tweak-Tool and selected workspaces spans display.
reinstall gnome setting using the command line
sudo apt-get install compizconfig-settings-managerNone works. can someone help me out?
output of xrandr
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1920x1080 120.00*+ 60.01 59.97 59.96 59.93 1680x1050 84.94 74.89 69.88 59.95 59.88 1600x1024 60.17 1400x1050 85.00 74.76 70.00 59.98 1600x900 59.99 59.94 59.95 59.82 1280x1024 85.02 75.02 60.02 1440x900 59.89 1400x900 59.96 59.88 1280x960 85.00 60.00 1440x810 60.00 59.97 1368x768 59.88 59.85 1360x768 59.80 59.96 1280x800 59.99 59.97 59.81 59.91 1152x864 100.00 85.06 85.00 75.00 75.00 70.00 60.00 1280x720 60.00 59.99 59.86 59.74 1024x768 85.00 75.05 60.04 85.00 75.03 70.07 60.00 1024x768i 86.96 960x720 85.00 75.00 60.00 928x696 75.00 60.05 896x672 75.05 60.01 1024x576 59.95 59.96 59.90 59.82 960x600 59.93 60.00 832x624 74.55 960x540 59.96 59.99 59.63 59.82 800x600 85.00 75.00 70.00 65.00 60.00 85.14 72.19 75.00 60.32 56.25 840x525 85.02 74.96 69.88 60.01 59.88 864x486 59.92 59.57 800x512 60.17 700x525 85.08 74.76 70.06 59.98 800x450 59.95 59.82 640x512 85.02 75.02 60.02 720x450 59.89 700x450 59.96 59.88 640x480 85.09 60.00 85.01 72.81 75.00 59.94 720x405 59.51 58.99 720x400 85.04 684x384 59.88 59.85 680x384 59.80 59.96 640x400 59.88 59.98 85.08 576x432 100.11 85.15 85.09 75.00 75.00 70.00 60.06 640x360 59.86 59.83 59.84 59.32 640x350 85.08 512x384 85.00 75.03 70.07 60.00 512x384i 87.06 512x288 60.00 59.92 416x312 74.66 480x270 59.63 59.82 400x300 85.27 72.19 75.12 60.32 56.34 432x243 59.92 59.57 320x240 85.18 72.81 75.00 60.05 360x202 59.51 59.13 360x200 85.04 320x200 85.27 320x180 59.84 59.32 320x175 85.27
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)Update: 2019/03/11 I tried installing newer Nvidia drivers and tested several of them. It did not work, and the latest one broke my resolution and refresh-rate setting, even after I reverted the driver. I tried reinstalling Ubuntu from a flash drive. However, that did not work either. It fixed the resolution/refresh-rate problem, but not the original problem. back to square one.
161 Answer
the problem is Secure Boot. It blocks some files from being installed properly. You don't have to disable it though. Go to 'Software & Updates' -> 'Additional Drivers' and enable the open source 'X.Org X Server...' driver (temporary). then purge the Nvidia driver.
sudo apt purge nvidia*make sure that it is gone
sudo apt update
sudo apt upgrade
sudo apt autoremoveGo back to 'Software & Updates' and reselect the Nvidia driver. it will ask you to set up a Secure Boot password. do that. Apply and restart.
Before you got booted into the log in screen there will a blue screen with 'press any key to perform MOK management', do that. Choose 'enrol key from disk', put in you password. Then navigate your way out (I forgot what happened next, but it is very simple). Reboot ... and check if it works.
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