linux4noobs

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linux4noobs

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Whether you're a seasoned pro or the noobiest of noobs, you've found the right place for Linux support and information. With a dedication to supporting free and open source software, this community aims to ensure Linux fits your needs and works for you. From troubleshooting to tutorials, practical tips, news and more, all aspects of Linux are warmly welcomed. Join a community of like-minded enthusiasts and professionals driving Linux's ongoing evolution.

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INVALID MIT-MAGIC-COOKIE-1 key [SOLVED] (discuss.tchncs.de)

submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/linux4noobs

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For a long time, when using my computer (Arch linux), I would sometimes run into this problem. When trying to open an application in a new window, I'll be met by:

Invalid MIT-MAGIC-COOKIE-1 key
cannot open display: :0

I've tried a lot of "solutions" without luck, but I've finally found a way to consistently reproduce the error. It happens everytime I connect to a new wifi.

I found this 9 year old post about the same problem, but it does not include a real solution or the cause of the problem.

I'll try asking it here, to see if anybody knows why it happens and how to solve it, and perhaps to help others with the same problem find the cause of this error. It is such a relief for me, knowing that it is caused by changing wifi.

In advance, thanks for the help/feedback :)

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[–] [email protected] 1 points 1 week ago

Thanks for the answer :)

I'll look at it tomorrow, when I'm at my computer :)