• X works only when external monitor is connected


    Hi all!
    I am using a Dell XPS 15 with 4K display. I am having some problem in X auto-configuring my laptop’s display.
    If I connect an external monitor, X works fine. But if I disconnect it, from the logs, I see that X server gets successfully shut down. If I use LTS kernel, I am able to use my laptop display without any issues. But without connecting an external monitor I am unable to use my laptop’s built-in display using the latest kernel. I have included /var/log/Xorg.1.log file. My log file is available on pastebin. Looking at lines with (EE), I see that there is some problem in setting the correct modeline for my laptop’s display. I don’t have any custom configuration files in /etc/X11/xorg.conf.d. Please let me know if any further information is needed.

    Thanks in advance.
    Amit

  • Okay, maybe close this thread to keep it all in one place and use this instead.

  • –closing–
    as @Bryanpwo suggested ;)

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