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So I am trying out the 14.04 and I keep both of my monitors in portrait mode. But the login splash is in landscape. But I can't seem to figure out how to rotate my login splash or where the config is for it? It is no longer in /etc/lightdm/lightdm.conf

Can anyone help?

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2 Answers 2

Reset to default
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DBX12's answer is good. Let me add 2 details that I had to figure out in 18.10:

  • Instead of [SeatDefaults] current versions expect [Seat:*]
  • More importantly: I had to experiment a little with the above script using logger and then xmessage to conclude, that it does get called, it does set things right, but then its effect is unfortunately undone by unity-greeter.

I tried other greeters, and they all honor the solution and start up nicely rotated, except the default unity-greeter. I ended up using slick-greeter.

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  • Spent more than an hour trying to get unity-greeter to rotate, finally saw this definitive "NO". Thanks for saving me from trying harder, I'll use another greeter too.
    – Andy Yan
    Nov 30, 2018 at 17:33
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Put this

#!/bin/bash
xrandr -o left
exit 0

into /etc/lightdm/greeter_setup.sh and add the line 

greeter-setup-script=/etc/lightdm/greeter_setup.sh

to /etc/lightdm/lightdm.conf in the [SeatDefaults] Section.

All credits to SE user falconer for his answer

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