Ubuntu – Second Monitor Not Detected (20.04.1)


I have found myself posting a lot right here, with no response, but this is kinda my last hurrah at Ubuntu, because I really cannot find a way to get this to work.

I use a laptop, with the following specs: Intel i7-7700, Nvidia GTX 1060, 24GB of RAM, and 1 HDMI port.

Whenever I install the latest Nvidia drivers for my laptop, the HDMI port does not send a signal, therefore, no monitor. I have uninstalled Ubuntu, reinstalled, installed Kubuntu, done everything, but I can't find a reason for this to happen.

If anyone and I mean ANYONE, can help out, please do. (if it involves the command line, please tell me what the command does)

This is what happens when I run xrander:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
   1920x1080     77.00*```

Best Answer

  • If anyone else is having this issue, think no more! I found that disabling Secure Boot will fix this issue. Your resolution will fix after a restart, and 2 monitors work after disabling. I figured this out whilst trying to install Pop!_OS.