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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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How to fool a laptop into thinking a monitor is connected? (lemmy.kde.social)

submitted 10 months ago by tubbadu@lemmy.kde.social to c/linux@lemmy.ml

32 comments fedilink hide all child comments

Hello! I converted an old laptop with a broken screen into a home server, and it all works well except for one thing: when I reboot it (via ssh), if no screen is connected, it will get stuck and refuse to boot. as soon as I connect an HDMI monitor, the fans will start spinning and it will start booting as usual. Then I can remove the HDMI and it will work flawlessly. I don't know if this is a linux problem, a GRUB problem, or a firmware problem.
Any idea on how to solve this, or on how to fool it into thinking a screen is connected? The problem is not the lid switch as I removed the magnet from the screen, so it thinks the lid is always open

Thanks in advance!

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[–] gkdeb@lemmy.ml 97 points 10 months ago (4 children)

A HDMI Dummy Plug?

[–] tubbadu@lemmy.kde.social 25 points 10 months ago (1 children)

I didn't think this could actually exist, just ordered one! thanks!

[–] Isakk86@lemmy.world 4 points 10 months ago

It works great! I use one for a headless server for steam remote play.

[–] 9488fcea02a9@sh.itjust.works 16 points 10 months ago (1 children)

There's an evangelion joke here that i'm not clever enough to make

[–] Atemu@lemmy.ml 19 points 10 months ago

Get in the Laptop Shinji.

[–] rambos@lemm.ee 11 points 10 months ago

There is also vga to hdmi adapter that works

[–] BrianTheeBiscuiteer@lemmy.world 9 points 10 months ago

These are also good for headless servers. GPUs tend to not "kick-in" if they don't think a monitor is connected.