Ubuntu 18.04 Xorg server error












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I am trying to configure my new laptop with Ubuntu 18.04 (HP Spectre X360 late 2018 version). In particular, I would like to have per-monitor HiDPI scaling for my 4k laptop screen and my ultra-wide, non-HiDPI external monitor.



I was following this guide https://wiki.archlinux.org/index.php/HiDPI#Side_display , that suggests to use xrandr for this purpose. However, when I run the suggested command, I get an error:



xrandr --output eDP-1 --auto --output DP-1 --auto --scale 2x2 --right-of eDP-1
xrandr: screen cannot be larger than 8192x8192 (desired size 10720x2880)


Fair enough, let's change that. I then discovered that to do that I need to change the virtual screen setting in my xorg.conf, as specified here xrandr: screen cannot be larger than 1680x1680 (desired size 3360x1050) .



However, I am unable to create an xorg.conf at all. I tried multiple things:




  1. Login to a tty5 session, type sudo service gdm3 stop and then sudo X -configure gives me the following error: Cannot establish any listening sockets - Make sure an X server isn't already running, which doesn't make any sense since X should not be running at that point.

  2. Enter ubuntu in Recovery mode and type sudo X -configure gives me instead another one : modprobe: FATAL: Module fbcon not found in directory /lib/modules/$kernel
    intel: waited 2020 ms for i915.ko driver to load
    Number of created screens does not match number of detected devices.
    Configuration failed. (EE) Server terminated with error (2). Closing log file.



At this point, I do not know what to do. Any suggestions?










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    I am trying to configure my new laptop with Ubuntu 18.04 (HP Spectre X360 late 2018 version). In particular, I would like to have per-monitor HiDPI scaling for my 4k laptop screen and my ultra-wide, non-HiDPI external monitor.



    I was following this guide https://wiki.archlinux.org/index.php/HiDPI#Side_display , that suggests to use xrandr for this purpose. However, when I run the suggested command, I get an error:



    xrandr --output eDP-1 --auto --output DP-1 --auto --scale 2x2 --right-of eDP-1
    xrandr: screen cannot be larger than 8192x8192 (desired size 10720x2880)


    Fair enough, let's change that. I then discovered that to do that I need to change the virtual screen setting in my xorg.conf, as specified here xrandr: screen cannot be larger than 1680x1680 (desired size 3360x1050) .



    However, I am unable to create an xorg.conf at all. I tried multiple things:




    1. Login to a tty5 session, type sudo service gdm3 stop and then sudo X -configure gives me the following error: Cannot establish any listening sockets - Make sure an X server isn't already running, which doesn't make any sense since X should not be running at that point.

    2. Enter ubuntu in Recovery mode and type sudo X -configure gives me instead another one : modprobe: FATAL: Module fbcon not found in directory /lib/modules/$kernel
      intel: waited 2020 ms for i915.ko driver to load
      Number of created screens does not match number of detected devices.
      Configuration failed. (EE) Server terminated with error (2). Closing log file.



    At this point, I do not know what to do. Any suggestions?










    share|improve this question



























      0












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      0








      I am trying to configure my new laptop with Ubuntu 18.04 (HP Spectre X360 late 2018 version). In particular, I would like to have per-monitor HiDPI scaling for my 4k laptop screen and my ultra-wide, non-HiDPI external monitor.



      I was following this guide https://wiki.archlinux.org/index.php/HiDPI#Side_display , that suggests to use xrandr for this purpose. However, when I run the suggested command, I get an error:



      xrandr --output eDP-1 --auto --output DP-1 --auto --scale 2x2 --right-of eDP-1
      xrandr: screen cannot be larger than 8192x8192 (desired size 10720x2880)


      Fair enough, let's change that. I then discovered that to do that I need to change the virtual screen setting in my xorg.conf, as specified here xrandr: screen cannot be larger than 1680x1680 (desired size 3360x1050) .



      However, I am unable to create an xorg.conf at all. I tried multiple things:




      1. Login to a tty5 session, type sudo service gdm3 stop and then sudo X -configure gives me the following error: Cannot establish any listening sockets - Make sure an X server isn't already running, which doesn't make any sense since X should not be running at that point.

      2. Enter ubuntu in Recovery mode and type sudo X -configure gives me instead another one : modprobe: FATAL: Module fbcon not found in directory /lib/modules/$kernel
        intel: waited 2020 ms for i915.ko driver to load
        Number of created screens does not match number of detected devices.
        Configuration failed. (EE) Server terminated with error (2). Closing log file.



      At this point, I do not know what to do. Any suggestions?










      share|improve this question
















      I am trying to configure my new laptop with Ubuntu 18.04 (HP Spectre X360 late 2018 version). In particular, I would like to have per-monitor HiDPI scaling for my 4k laptop screen and my ultra-wide, non-HiDPI external monitor.



      I was following this guide https://wiki.archlinux.org/index.php/HiDPI#Side_display , that suggests to use xrandr for this purpose. However, when I run the suggested command, I get an error:



      xrandr --output eDP-1 --auto --output DP-1 --auto --scale 2x2 --right-of eDP-1
      xrandr: screen cannot be larger than 8192x8192 (desired size 10720x2880)


      Fair enough, let's change that. I then discovered that to do that I need to change the virtual screen setting in my xorg.conf, as specified here xrandr: screen cannot be larger than 1680x1680 (desired size 3360x1050) .



      However, I am unable to create an xorg.conf at all. I tried multiple things:




      1. Login to a tty5 session, type sudo service gdm3 stop and then sudo X -configure gives me the following error: Cannot establish any listening sockets - Make sure an X server isn't already running, which doesn't make any sense since X should not be running at that point.

      2. Enter ubuntu in Recovery mode and type sudo X -configure gives me instead another one : modprobe: FATAL: Module fbcon not found in directory /lib/modules/$kernel
        intel: waited 2020 ms for i915.ko driver to load
        Number of created screens does not match number of detected devices.
        Configuration failed. (EE) Server terminated with error (2). Closing log file.



      At this point, I do not know what to do. Any suggestions?







      18.04 xorg multiple-monitors 4k-monitor hdpi






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      edited Dec 27 '18 at 21:08







      alecive

















      asked Dec 27 '18 at 18:16









      alecivealecive

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