I have a DELL XPS 15. I am struggling to connect an external monitor to my Ubuntu Machine. This is my xrandr output. I tried installing nvidia driver etc but nothing works. The cable is good, so that shouldn't be the problem.
Screen 0: minimum 8 x 8, current 2048 x 1152, maximum 32767 x 32767
eDP1 connected primary 2048x1152+0+0 (normal left inverted right x axis y axis) 346mm x 194mm
3840x2160 60.00 +
3200x1800 60.00
2880x1620 60.00
2560x1440 60.00
2048x1536 60.00
1920x1440 60.00
960x540 60.00
800x600 60.32 56.25
864x486 60.00
640x480 59.94
720x405 60.00
640x360 60.00
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
inxi -G
Graphics: Card-1: Intel Skylake Integrated Graphics
Card-2: NVIDIA GM107M [GeForce GTX 960M]
Display Server: X.org 1.18.4 drivers: intel (unloaded: fbdev,vesa) FAILED: nouveau Resolution: N/A
GLX Renderer: N/A GLX Version: N/A
lspci -nn | grep '[03'
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 530 [8086:191b] (rev 06)
01:00.0 3D controller [0302]: NVIDIA Corporation GM107M [GeForce GTX 960M] [10de:139b] (rev ff)