Comment 66 for bug 1296020

Confirming Christian's report with Ubuntu 17.10. Ghost screen is detected, although the OS functions properly and it's more of an annoyance than a critical problem -- display is set to mirrored mode by default.

Dell XPS15, Intel/NVIDIA.

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1920x1080 60.01*+ 59.93
   1680x1050 59.95 59.88
   1600x1024 60.17
   1400x1050 59.98
   1280x1024 60.02
   1440x900 59.89
   1280x960 60.00
   1360x768 59.80 59.96
   1152x864 60.00
   1024x768 60.04 60.00
   960x720 60.00
   928x696 60.05
   896x672 60.01
   960x600 60.00
   960x540 59.99
   800x600 60.00 60.32 56.25
   840x525 60.01 59.88
   800x512 60.17
   700x525 59.98
   640x512 60.02
   720x450 59.89
   640x480 60.00 59.94
   680x384 59.80 59.96
   576x432 60.06
   512x384 60.00
   400x300 60.32 56.34
   320x240 60.05
VGA-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
VGA-1-2 connected (normal left inverted right x axis y axis)
   1024x768 60.00
   800x600 60.32 56.25
   848x480 60.00
   640x480 59.94
HDMI-1-2 disconnected (normal left inverted right x axis y axis)
  1024x768 (0x44) 65.000MHz -HSync -VSync
        h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
        v: height 768 start 771 end 777 total 806 clock 60.00Hz
  800x600 (0x45) 40.000MHz +HSync +VSync
        h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
        v: height 600 start 601 end 605 total 628 clock 60.32Hz
  800x600 (0x46) 36.000MHz +HSync +VSync
        h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
        v: height 600 start 601 end 603 total 625 clock 56.25Hz
  640x480 (0x48) 25.175MHz -HSync -VSync
        h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
        v: height 480 start 490 end 492 total 525 clock 59.94Hz

# lspci

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 540M] (rev a1)