How To Get Multiple Displays Working With Docking Station?
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When I was running Trisquel 8 alpha 2, I was able to follow these instructions to get multiple monitors working through my Thinkpad dock:
https://askubuntu.com/questions/638875/how-to-get-multiple-displays-working-with-docking-station
... Recently I decided to install Trisquel 7 and now the above technique seems to have no effect.
Does anyone have any ideas how I can get this working with Trisquel 7? How can I come to a conclusion on how to troubleshoot this?
Assuming Trisquel 8 has the same utilities as Trisquel 7: are all screens listed in "Displays" (in the "System Settings")? Have you tried changing their resolutions?
When I have one monitor plugged directly into the laptop and one monitor plugged into the dock, I can see both screens. When both monitors are plugged into the dock, the monitors operate in only mirrored mode at 1920 x 1080, which is the resolution of the monitor with the lower resolution. The second monitor has a 1920 x 1200 native resolution.
When I try to change their resolutions when both monitors are plugged into the dock, i am not given the option to change the monitors resolution for the higher resolution screen probably because both screens are mirrored.
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