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Re: Second screen - DisplayPort

From: amuza
Subject: Re: Second screen - DisplayPort
Date: Fri, 25 Jun 2021 00:44:28 +0200

CPU architecture is x86_64

It is a Lenovo T430.

Please let me know if you need any other info to help me.

Leo Famulari:
DiaplayPort is a (mostly) display interface standard that is unrelated to HDMI:

Amuza, does Linux register connections to your DisplayPort interface? You can 
check the output of dmesg.

What kind of CPU architecture are you using? Maybe some kernel config flag 
needs to be changed.

On Wed, Jun 23, 2021, at 12:27, Joshua Branson wrote:
amuza <> writes:


I'm new to Guix system, yesterday I installed it for the first time. I
installed it with i3 and Mate.

I would like to use my second monitor, but its DisplayPort connection is
not recognized by xrandr. xrandr only shows my own laptop's screen.

If I connect my second monitor through VGA, xrandr does detect that VGA

The DisplayPort connection worked fine with Trisquel, I could use my
second monitor, so I guess it's not an issue on software Freedom.

I wish I knew how to help...What's the main difference between HDMI and
display port?  Does display port allow one to send video and audio down
the wire?

Any suggestion on how to make Guix detect my DisplayPort-connected monitor?

Thank you!

Joshua Branson (joshuaBPMan in #guix)
Sent from Emacs and Gnus
   "You can have whatever you want, as long as you help
enough other people get what they want." - Zig Ziglar

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