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Laptop running Ubuntu 18 and Nvidia GPU does not detect HDMI display



The Next CEO of Stack OverflowExternal monitor not detected on Ubuntu 18.04Nvidia / Wayland / Ubuntu 18.04 : Unable to find display on any available systemSecond display dected but not shown. Previous threads haven't helpedDVI to VGA converter not working (Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller)I can't have two monitors at the same time on Ubuntu 17.10 using XorgIncorrect monitor size acknownlegement ubuntu 16.04Ubuntu 18.04 dual monitor doesnt workAsus X551ca HDMI resolutionSecond Monitor not detectedUbuntu 18.04 Monitor not recognizedXubuntu 18.04 does not detect external monitors connected via USB-C hubScrolling between screen










2















My laptop comes with



lspci | grep VGA




00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
processor Graphics Controller (rev 09) 01:00.0 VGA compatible
controller: NVIDIA Corporation GK107GLM [Quadro K2000M] (rev a1)




I have Ubuntu 18 installed and it is able to detect DisplayPort monitors without any issue. Now I tried connecting an HDMI monitor, but it is not detected. The monitor works fine when I boot to Windows.



After googling a bit, I found this Nvidia / Wayland / Ubuntu 18.04 : Unable to find display on any available system
Where it is mentioned 'Wayland does not work with nvidia'. I had the 390 drivers installed tried switching to Nouveau (reboot always) and still the same.



Then I found this External monitor not detected on Ubuntu 18.04
and followed it up with this http://www.webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.html
so I ran sudo dpkg-reconfigure lightdm, as gdm was not installed.



The problem wasn't solved after rebooting, although I could see a change, as the login screen now had a lower resolution. I think I was still using nouveau at this time. I then changed to nvidia 390 and this time the login screen appears in the HDMI display. After logging in, the HDMI display turns to black, the laptop display turns on and the HDMI remains undetected. If I lock the screen, the HDMI display turns on again, showing the login screen to enter the password. Also now the login screen is always sent to the HDMI monitor, even if it is not connected. So I cannot login without the monitor attached... The HDMI monitor is at tty7. tty1-6 are displayed on the laptop's screen, text mode.



Then I tried disabling Wayland by following the instructions here
https://linuxconfig.org/how-to-disable-wayland-and-enable-xorg-display-server-on-ubuntu-18-04-bionic-beaver-linux
but this also didn't change anything. If I change the option on the login screen from Ubuntu (Wayland) (white circle) to Ubuntu default (with the ubuntu logo), then the computer uses the HDMI screen only for login and desktop enviroment. If I logout and switch back to the option Ubuntu (Wayland), I get back the previous behaviour.



During all this time, nvidia-settings




ERROR: Unable to find display on any available system




And I could not find a fix for this online. Although it may help, it's not necessary, as the system is able to use the HDMI monitor just fine to display the login/use selection screen.



During all this time, the 'Displays' window only showed my laptop's built-in display.



This is what I get from xrandr, on my laptop screen, even after reconfiguring to lightdm




Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
XWAYLAND0 connected 1920x1080+0+0 (normal left inverted right x axis y
axis) 340mm x 190mm 1920x1080 59.96*+




This is what I get from xrandr, on the HDMI screen:




Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
DP-0 connected primary 1920x1080+0+0 (normal left inverted right x
axis y axis) 480mm x 270mm 1920x1080 60.00*+ 59.94 50.00

1680x1050 59.95 1600x900 60.00 1440x900 59.89
1400x1050 59.98 1280x1024 75.02 60.02 1280x800

59.81 1280x720 60.00 59.94 50.00 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 59.94 640x480 75.00 59.94 59.93 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x
axis y axis) DP-3 disconnected (normal left inverted right x axis y
axis) DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)











share|improve this question




























    2















    My laptop comes with



    lspci | grep VGA




    00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
    processor Graphics Controller (rev 09) 01:00.0 VGA compatible
    controller: NVIDIA Corporation GK107GLM [Quadro K2000M] (rev a1)




    I have Ubuntu 18 installed and it is able to detect DisplayPort monitors without any issue. Now I tried connecting an HDMI monitor, but it is not detected. The monitor works fine when I boot to Windows.



    After googling a bit, I found this Nvidia / Wayland / Ubuntu 18.04 : Unable to find display on any available system
    Where it is mentioned 'Wayland does not work with nvidia'. I had the 390 drivers installed tried switching to Nouveau (reboot always) and still the same.



    Then I found this External monitor not detected on Ubuntu 18.04
    and followed it up with this http://www.webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.html
    so I ran sudo dpkg-reconfigure lightdm, as gdm was not installed.



    The problem wasn't solved after rebooting, although I could see a change, as the login screen now had a lower resolution. I think I was still using nouveau at this time. I then changed to nvidia 390 and this time the login screen appears in the HDMI display. After logging in, the HDMI display turns to black, the laptop display turns on and the HDMI remains undetected. If I lock the screen, the HDMI display turns on again, showing the login screen to enter the password. Also now the login screen is always sent to the HDMI monitor, even if it is not connected. So I cannot login without the monitor attached... The HDMI monitor is at tty7. tty1-6 are displayed on the laptop's screen, text mode.



    Then I tried disabling Wayland by following the instructions here
    https://linuxconfig.org/how-to-disable-wayland-and-enable-xorg-display-server-on-ubuntu-18-04-bionic-beaver-linux
    but this also didn't change anything. If I change the option on the login screen from Ubuntu (Wayland) (white circle) to Ubuntu default (with the ubuntu logo), then the computer uses the HDMI screen only for login and desktop enviroment. If I logout and switch back to the option Ubuntu (Wayland), I get back the previous behaviour.



    During all this time, nvidia-settings




    ERROR: Unable to find display on any available system




    And I could not find a fix for this online. Although it may help, it's not necessary, as the system is able to use the HDMI monitor just fine to display the login/use selection screen.



    During all this time, the 'Displays' window only showed my laptop's built-in display.



    This is what I get from xrandr, on my laptop screen, even after reconfiguring to lightdm




    Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
    XWAYLAND0 connected 1920x1080+0+0 (normal left inverted right x axis y
    axis) 340mm x 190mm 1920x1080 59.96*+




    This is what I get from xrandr, on the HDMI screen:




    Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
    DP-0 connected primary 1920x1080+0+0 (normal left inverted right x
    axis y axis) 480mm x 270mm 1920x1080 60.00*+ 59.94 50.00

    1680x1050 59.95 1600x900 60.00 1440x900 59.89
    1400x1050 59.98 1280x1024 75.02 60.02 1280x800

    59.81 1280x720 60.00 59.94 50.00 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 59.94 640x480 75.00 59.94 59.93 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x
    axis y axis) DP-3 disconnected (normal left inverted right x axis y
    axis) DP-4 disconnected (normal left inverted right x axis y axis)
    DP-5 disconnected (normal left inverted right x axis y axis)











    share|improve this question


























      2












      2








      2








      My laptop comes with



      lspci | grep VGA




      00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
      processor Graphics Controller (rev 09) 01:00.0 VGA compatible
      controller: NVIDIA Corporation GK107GLM [Quadro K2000M] (rev a1)




      I have Ubuntu 18 installed and it is able to detect DisplayPort monitors without any issue. Now I tried connecting an HDMI monitor, but it is not detected. The monitor works fine when I boot to Windows.



      After googling a bit, I found this Nvidia / Wayland / Ubuntu 18.04 : Unable to find display on any available system
      Where it is mentioned 'Wayland does not work with nvidia'. I had the 390 drivers installed tried switching to Nouveau (reboot always) and still the same.



      Then I found this External monitor not detected on Ubuntu 18.04
      and followed it up with this http://www.webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.html
      so I ran sudo dpkg-reconfigure lightdm, as gdm was not installed.



      The problem wasn't solved after rebooting, although I could see a change, as the login screen now had a lower resolution. I think I was still using nouveau at this time. I then changed to nvidia 390 and this time the login screen appears in the HDMI display. After logging in, the HDMI display turns to black, the laptop display turns on and the HDMI remains undetected. If I lock the screen, the HDMI display turns on again, showing the login screen to enter the password. Also now the login screen is always sent to the HDMI monitor, even if it is not connected. So I cannot login without the monitor attached... The HDMI monitor is at tty7. tty1-6 are displayed on the laptop's screen, text mode.



      Then I tried disabling Wayland by following the instructions here
      https://linuxconfig.org/how-to-disable-wayland-and-enable-xorg-display-server-on-ubuntu-18-04-bionic-beaver-linux
      but this also didn't change anything. If I change the option on the login screen from Ubuntu (Wayland) (white circle) to Ubuntu default (with the ubuntu logo), then the computer uses the HDMI screen only for login and desktop enviroment. If I logout and switch back to the option Ubuntu (Wayland), I get back the previous behaviour.



      During all this time, nvidia-settings




      ERROR: Unable to find display on any available system




      And I could not find a fix for this online. Although it may help, it's not necessary, as the system is able to use the HDMI monitor just fine to display the login/use selection screen.



      During all this time, the 'Displays' window only showed my laptop's built-in display.



      This is what I get from xrandr, on my laptop screen, even after reconfiguring to lightdm




      Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
      XWAYLAND0 connected 1920x1080+0+0 (normal left inverted right x axis y
      axis) 340mm x 190mm 1920x1080 59.96*+




      This is what I get from xrandr, on the HDMI screen:




      Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
      DP-0 connected primary 1920x1080+0+0 (normal left inverted right x
      axis y axis) 480mm x 270mm 1920x1080 60.00*+ 59.94 50.00

      1680x1050 59.95 1600x900 60.00 1440x900 59.89
      1400x1050 59.98 1280x1024 75.02 60.02 1280x800

      59.81 1280x720 60.00 59.94 50.00 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 59.94 640x480 75.00 59.94 59.93 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x
      axis y axis) DP-3 disconnected (normal left inverted right x axis y
      axis) DP-4 disconnected (normal left inverted right x axis y axis)
      DP-5 disconnected (normal left inverted right x axis y axis)











      share|improve this question
















      My laptop comes with



      lspci | grep VGA




      00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core
      processor Graphics Controller (rev 09) 01:00.0 VGA compatible
      controller: NVIDIA Corporation GK107GLM [Quadro K2000M] (rev a1)




      I have Ubuntu 18 installed and it is able to detect DisplayPort monitors without any issue. Now I tried connecting an HDMI monitor, but it is not detected. The monitor works fine when I boot to Windows.



      After googling a bit, I found this Nvidia / Wayland / Ubuntu 18.04 : Unable to find display on any available system
      Where it is mentioned 'Wayland does not work with nvidia'. I had the 390 drivers installed tried switching to Nouveau (reboot always) and still the same.



      Then I found this External monitor not detected on Ubuntu 18.04
      and followed it up with this http://www.webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.html
      so I ran sudo dpkg-reconfigure lightdm, as gdm was not installed.



      The problem wasn't solved after rebooting, although I could see a change, as the login screen now had a lower resolution. I think I was still using nouveau at this time. I then changed to nvidia 390 and this time the login screen appears in the HDMI display. After logging in, the HDMI display turns to black, the laptop display turns on and the HDMI remains undetected. If I lock the screen, the HDMI display turns on again, showing the login screen to enter the password. Also now the login screen is always sent to the HDMI monitor, even if it is not connected. So I cannot login without the monitor attached... The HDMI monitor is at tty7. tty1-6 are displayed on the laptop's screen, text mode.



      Then I tried disabling Wayland by following the instructions here
      https://linuxconfig.org/how-to-disable-wayland-and-enable-xorg-display-server-on-ubuntu-18-04-bionic-beaver-linux
      but this also didn't change anything. If I change the option on the login screen from Ubuntu (Wayland) (white circle) to Ubuntu default (with the ubuntu logo), then the computer uses the HDMI screen only for login and desktop enviroment. If I logout and switch back to the option Ubuntu (Wayland), I get back the previous behaviour.



      During all this time, nvidia-settings




      ERROR: Unable to find display on any available system




      And I could not find a fix for this online. Although it may help, it's not necessary, as the system is able to use the HDMI monitor just fine to display the login/use selection screen.



      During all this time, the 'Displays' window only showed my laptop's built-in display.



      This is what I get from xrandr, on my laptop screen, even after reconfiguring to lightdm




      Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
      XWAYLAND0 connected 1920x1080+0+0 (normal left inverted right x axis y
      axis) 340mm x 190mm 1920x1080 59.96*+




      This is what I get from xrandr, on the HDMI screen:




      Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 16384
      DP-0 connected primary 1920x1080+0+0 (normal left inverted right x
      axis y axis) 480mm x 270mm 1920x1080 60.00*+ 59.94 50.00

      1680x1050 59.95 1600x900 60.00 1440x900 59.89
      1400x1050 59.98 1280x1024 75.02 60.02 1280x800

      59.81 1280x720 60.00 59.94 50.00 1152x864 75.00 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 59.94 640x480 75.00 59.94 59.93 DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x
      axis y axis) DP-3 disconnected (normal left inverted right x axis y
      axis) DP-4 disconnected (normal left inverted right x axis y axis)
      DP-5 disconnected (normal left inverted right x axis y axis)








      nvidia multiple-monitors display hdmi






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 7 mins ago







      user2066480

















      asked yesterday









      user2066480user2066480

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