[xubuntu-users] plug-and play monitor loses configuration

[JMZ]

Hi Nino,

which videocard are you using?  Is it an integrated video chip system 
(ie. intel), or a video card in the video graphics slot?

Maybe two scenarios are possible.

1) Perhaps your video card does not fully support display port at that 
resolution.  In that case you will need a new video card capable of this 
task.  If you are using an integrated graphics system, now might be the 
time to get an external graphics card suited to the setup you would like 
to have.

2) Perhaps your drivers are old, and not supportive of what you'd like 
to do.  Certain drivers, like the nvidia series, are available by 
repository and are frequently updated.  Others might be available by ppa 
(search sourceforge for a possible ppa).

Good luck,
Jordan


On 05/17/2016 09:38 PM, pereira wrote:
> Hi All,
>
> I got myself qn ASUS PB287Q 4 k monitor with 3840x2160 pixels, which I'm
> using together with an older but still nice ACER X243W 1920x1200 monitor.
> The ASUS can connect through a displayport, which allows it to refresh 
> at a
> 60 Hz rate, and an HDMI port which allows only 30 Hz (apparently).
>
> The problem is: the connection through a displayport is plug-and-play
> (I've been told), so that my computer Xubuntu 14.10) notices that 
> something
> is amiss, and it switches over to the remaining screen. Something similar
> happens when I forget to log out: tihe system hits some timeout, the
> monitor turns off, and the display goes to the smaller screen.
>
> I could decide to use the HDMI connection, but then the mouse crawls 
> across
> the screen with little jumps, a very irritating sight.
>
> I could perhaps connect through a second HDMI connection to speed things
> up. But, what I'd wonder about is: can you turn off the plug-and-play 
> thingie
> so that things stay alive the way I like them?
>
> Any other suggestion for getting this monitor under control?
>
> Thank you,
>
> Nino
>