My three year old laptop (running Linux Mint) has developed the annoying
habit of displaying a black screen when booting, unless an external
monitor is plugged in.
I found hundreds of queries on the web about this problem, with any
conclusive software fix. What solved the problem was a "VGA Dummy Plug".
When inserted in the computer's VGA socket this tricks the system into
thinking a monitor is installed and allows the boot.
Apparently such plugs were used in some early bitcoin mining computers.
A PC chassis was used with multiple graphics cards. But to for Microsoft
Windows to recognize the graphics card, each required either a monitor
plugged in, or a dummy. Thus there are many VGA Dummy Plugs offered online.
More in Blog post:
http://blog.tomw.net.au/2018/01/fix-for-blank-screen-at-grublinux-login.html
--
Tom Worthington, MEd, FHEA, FACS CP. http://www.tomw.net.au t
+61(0)419496150
TomW Communications Pty Ltd. PO Box 13, Belconnen ACT 2617, Australia
Liability limited by a scheme approved under Prof. Standards Legislation
Honorary Senior Lecturer, Computer Science, Australian National University
https://cecs.anu.edu.au/research/profile/tom-worthington
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