[GTALUG] Kernel and/or X upgrade broke my video setup

[Evan Leibovitch]

That was it. I didn't realize the displays were overlayed. The fix took
seconds after implementing what you said using the GUI.

Many thanks.

On 11 October 2017 at 18:56, Scott Sullivan via talk <talk at gtalug.org>
wrote:

> On 11/10/17 12:02 PM, Evan Leibovitch wrote:
>
>> This is the output of my xrandr:
>>
>> Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
>> HDMI-0 disconnected (normal left inverted right x axis y axis)
>> DVI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis
>>
>                           \-----------/
>
> This chunk here, tells you what part of the framebuffer the monitor is
> occupying. In this case, it's 1920 wide, 1080 tall, and it's top-left
> offset is 0,0.
>
> VGA-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis)
>>
>
> Same here, 1920 wide, 1080 tall, and it's top-left offset is 0,0.So
> they're on top of each other, and showing the same video output.
>
> Before the updates, both screens were able to report maximum resolution
>> and even the make/model.
>>
>
> Do you mean that there used to resolutions available higher then 1920x1080?
>
> Now that's only reported for the main (HDMI-connected) screen
>>
> Your Xrandr out does not say your using an HDMI output. Just your VGA and
> DVI outputs.
>
> I'm assuming the driver has correct labels for your card. But you could
> also be using adapters, or evening the built in support for DVI that is
> mandatory HDMI equipment.
>
> Old, but still good explanation:
> https://gtalug.org/pipermail/legacy/2013-September/061899.html
>
>
> I attach a screenshot of the config window that I once used to make it
>> work under KDE.
>>
>
> KDE user here myself, as both monitors are position at 0,0 they are going
> to be drawn one on top of the other in the UI. You should be able to drag
> the top one off the other. Although, it says their not unified, so clicking
> unify, and then 'break unify' (same button, different states), might pop
> them apart for you in the UI (does for me at least).
>
> But failing that, there is also the direct approach.
>
> # xrandr --output DVI-0 --auto --primary --rotate normal --output VGA-0
> --auto --right-of DVI-0
>
> That should put the VGA-0's output on relative right of the DVI-0's
> output. This would make VGA-0's size and position 1920x1080+1920+0
>
>
> --
> Scott Sullivan
> ---
> Talk Mailing List
> talk at gtalug.org
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>



-- 
Evan Leibovitch
Toronto, Canada

Em: evan at telly dot org
Sk: evanleibovitch
Tw: el56
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