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persistent gnome arrangement nvidia+displaylink [1/2 solved]
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russK
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PostPosted: Sun Sep 06, 2015 10:53 pm    Post subject: persistent gnome arrangement nvidia+displaylink [1/2 solved] Reply with quote

This is sort of a 2 part question.

Part 1:
First of all, I have 3 monitors with an nvidia card.
One of the monitors is rotated 90 degrees, to the right of the other 2 which are horizontal.

I have gnome 3.16 working well, but each time I log in, I have to re-arrange the monitor layout with Settings->Displays->Arrange Combined Displays
I would like the arrangement to be remembered somehow.

Part 2:
I also have a small lilliput displaylink USB monitor that I like to play around with, I have been using to watch videos with vlc using the method on the wiki here: https://wiki.gentoo.org/wiki/DisplayLink (thanks very much to the author, otherwise my USB monitor would be gathering dust)

This is nice, but a little clumsy. I still don't understand why I cannot get Xorg to play with both the nvidia connected monitors and the USB monitor in the same session. Does anyone know if it's possible ?

Thanks


Last edited by russK on Wed Sep 09, 2015 9:27 pm; edited 1 time in total
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Buffoon
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PostPosted: Mon Sep 07, 2015 8:36 pm    Post subject: Reply with quote

In ancient times when caveman ran Xorg they used xrandr to set up the displays. It may still work even after Poettering redefined the way we run it.
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russK
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PostPosted: Tue Sep 08, 2015 1:30 am    Post subject: Reply with quote

Ok thanks for the brief history lesson, are you suggesting that one can run gnome without Xorg?

I remember the days before Xorg, I believe I installed XFree86 from my slackware floppies once upon a time. I doubt xrandr existed back then.

Anyways, I suppose I could use xrandr in my .xinitrc file, that could solve Part 1 of my question. But I don't think xrandr will be able to see a display that Xorg does not, so still no solution for Part 2.

Any other comments or suggestions for using the USB Displaylink monitor simultaneously with the others?

Thanks
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poncho
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PostPosted: Wed Sep 09, 2015 7:14 am    Post subject: Reply with quote

Doesn't https://wiki.gentoo.org/wiki/Project:GNOME/GNOME3-Upgrade-guide#Configure_Monitors_and_Displays work for you?
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russK
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PostPosted: Wed Sep 09, 2015 7:41 pm    Post subject: Reply with quote

poncho wrote:
Doesn't https://wiki.gentoo.org/wiki/Project:GNOME/GNOME3-Upgrade-guide#Configure_Monitors_and_Displays work for you?


Ah yes, thank you. Both the xrandr method and the .config/monitors.xml method seem to work, I don't know why my layout was not persistent. I am now using xrandr in an autostart file,

.config/autostart/xrandr.desktop:
Code:
[Desktop Entry]
Type=Application
Exec=/usr/bin/xrandr --output HDMI-0 --above DVI-I-1 --output DVI-D-0 --rotate right
Hidden=false
X-GNOME-Autostart-enabled=true
Name=xrandr autostart
Comment=my initial setup


I now consider this half solved. Would be nice to get the Displaylink monitor into the mix, I suspect nvidia just does not play nice with the fbdev driver.
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Buffoon
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PostPosted: Wed Sep 09, 2015 7:52 pm    Post subject: Reply with quote

Buffoon wrote:
In ancient times when caveman ran Xorg they used xrandr to set up the displays. It may still work even after Poettering redefined the way we run it.

Rephrasing at ponchos request.

Normally one should use xrandr to set up displays. I do not run Gnome and systemd so I cannot tell if xrandr settings are overridden by those.

I like everyone be happy. poncho, too.
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russK
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PostPosted: Wed Sep 09, 2015 9:25 pm    Post subject: Reply with quote

:D :D
Thanks for the rephrasing. :wink:

It appears systemd cares not about the xrandr settings.
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poncho
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PostPosted: Fri Sep 11, 2015 8:41 am    Post subject: Reply with quote

Buffoon wrote:
I like everyone be happy. poncho, too.


Much appreciated :D
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