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Old 10-19-13, 05:30 PM   #1
doktor5000
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Default xrandr issue with Thinkpad T420 and more than two displays

Hi all,

I've got an issue with advanced X configuration and multiple displays.
Up to two displays is fine, but more than two and it gets complicated. This is under RHEL 6.4 with X Server 1.13 and Nvidia Driver 310.32.

Configuration has been taken from: https://wiki.archlinux.org/index.php...VIDIA_together
Problem is that each graphic adapter can only control up to 2 displays,from what I've understood so far, so 4 displays (3 monitors and the laptop display itself) are divided between Intel and Nvidia graphics.

Problem is that with this setup X is working, but XRANDR is disabled during X startup, and I'd like some hints how to enable/enforce it to be able to resize screens and so on.

Also OpenGL is disabled during X startup, as half of the display is driven by the Integrated Intel graphics. How can this be enabled for all screens? I can also use a different driver, nouveau or nv if that's easier to handle.

Regards
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Old 10-19-13, 05:45 PM   #2
doktor5000
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Default Re: xrandr issue with Thinkpad T420 and more than two displays

Seems the forum doesn't let me upload the nvidia-bug-report
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Old 10-20-13, 03:58 AM   #3
artem
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Default Re: xrandr issue with Thinkpad T420 and more than two displays

Hi, doktor.

Please, read this carefully.
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Old 10-20-13, 04:26 AM   #4
doktor5000
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Default Re: xrandr issue with Thinkpad T420 and more than two displays

Mkay, posted there already beforehand: https://devtalk.nvidia.com/default/t...-two-displays/

But assumed afterwards that it could be solely about beta drivers and similar bleeding-edge stuff.

Thanks for the hint.
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