Re: Unrecognized Monitor

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Author: Victor Odhner
Date:  
To: Main PLUG discussion list
Subject: Re: Unrecognized Monitor
Thanks, all.

I ran out of time to play with the VGA connection, although I might have done better by fixing the typos that were pointed out to me.

I concluded that I should simply get with current technology and go all HDMI. That same monitor/TV automatically came up on 1080p, rock solid.

I’ve learned that the VGA connection is effectively a different monitor. It’s good that we have xrandr and that we can hack so freely in Linux, but that doesn’t fit the project I’m working which may be supported by its busy users.

As for my KVM, I can pair that other computer with my personal PC instead, since it was for my occasional use and 1024x768 is fine.

BTW, the KVMs for HDMI run $50.

Thanks Again,
Victor
_________________

On 20180302, at 11:59, Matt Graham <> wrote:

On 2018-03-01 17:47, Richard Wilson wrote:
> On SouthPole, if the screen resolution doesn't come up as 1280x1024,
> then as root

use xrandr to get the display name:

xrandr should be usable by whoever's running the current X session. At least, I've never needed root to use xrandr.

[snip stuff that sounds correct and will probably work]
> More recently I am also using a TV as a monitor -- I had to jump
> through some hoops to disable overscanning on the HDMI port


"xrandr --output HDMI-1 --set underscan on" should work. The man page doesn't totally make that clear, but that's what worked for me. Confusingly enough, you can usually set one of a TV's HDMI inputs to something like "PC mode" where it'll expect input without overscan. This causes trouble if you plug other HDMI sources into that port, since many/most of these output overscanned video by default.

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