I connected my Ubuntu laptop to an external 24 inch monitor. I then tried to set the resolution to a level appropriate for a 24 inch monitor: 1920×1200. However when I looked in the settings the highest resolution was quite low. I had to add additional resolution levels manually.
Research Links
- External Monitor Resolution doesn't go above 1024×768
- How to set the monitor to its native resolution which is not listed in the resolutions list?
- How can I make xrandr customization permanent?
- Setting xrandr changes persistently
- NVIDIA Quadro NVS 160M in the Dell Latitude E6500 – this will update the drivers I think. Rebooting to find out! The correct resolutions did not show up in the config list
- NVIDIA 310.19 Drivers Released How To Install It In Ubuntu 12.10/12.04 Tried this.
- Ubuntu Screen Resolution everything page
I followed the procedures detailed in the linked articles. When I tried 1920×1200 resolution with 60Hz frequency it did not show up in the configuration gui list. It must have been illegal. When I changed to 70Hz it did work. Note that it is important to generate the mode line individually for each resolution/frequency combination. I did a bonehead thing and reused the line for the 1280×1024 for the 1920×1200 mode and of course that did not work.
The changes made are not permanent and upon reboot will be lost.
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