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xrandr displays?

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  xrandr displays? conover@rahul.net (John Conover) - 2016-03-27 08:30 +0200
    Re: xrandr displays? Sven Joachim <svenjoac@gmx.de> - 2016-03-27 10:00 +0200

#166009 — xrandr displays?

Nvidia GeForce 7300 with 1280x1024 monitor connected to the VGA port,
and xrandr -q:

    Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096
    DVI-I-1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
       1280x1024      60.0*+   75.0
       .
       .
       .
       720x400        70.1  
    VGA-1 disconnected (normal left inverted right x axis y axis)
    TV-1 disconnected (normal left inverted right x axis y axis)

Note that DVI-I-1 is listed as connected, VGA-1 is disconnected.    

Is it normal for xrandr to report the DVI connected when the monitor
is connected to the VGA?

All xrandr arguments, (addmode, newmode, etc.,) should control DVI-I-1,
even though the monitor is connected to the VGA, right?

    Thanks,

    John

-- 

John Conover, conover@rahul.net, http://www.johncon.com/

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#166011

On 2016-03-26 22:23 -0700, John Conover wrote:

> Nvidia GeForce 7300 with 1280x1024 monitor connected to the VGA port,
> and xrandr -q:
>
>     Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096
>     DVI-I-1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 338mm x 270mm
>        1280x1024      60.0*+   75.0
>        .
>        .
>        .
>        720x400        70.1  
>     VGA-1 disconnected (normal left inverted right x axis y axis)
>     TV-1 disconnected (normal left inverted right x axis y axis)
>
> Note that DVI-I-1 is listed as connected, VGA-1 is disconnected.    
>
> Is it normal for xrandr to report the DVI connected when the monitor
> is connected to the VGA?

Probably the kernel has the connectors mixed up.  My monitor is
connected via DVI, but the kernel thinks otherwise:

,----
| $ cat /sys/class/drm/card0-DVI-I-1/enabled
| disabled
| $ cat /sys/class/drm/card0-VGA-1/enabled  
| enabled
`----

Naturally, xrandr reports the same false information.

> All xrandr arguments, (addmode, newmode, etc.,) should control DVI-I-1,
> even though the monitor is connected to the VGA, right?

Indeed.

Cheers,
       Sven

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