[If this is not the correct forum for this question, please redirect me. Thanks!]
USING UBUNTU 10.04
I'm using a swivle monitor, and I'm trying to figure out the most effective strategy for rotating the X video output selectively, when I need to, depending on the application I use.
For years, I've had the following in the "Device" section in my xorg.conf:
This works fine, but to be more precise: I get the Ubuntu Gnome Login screen in portrait (vertical), as well as all other windows in all other applications (with the monitor oriented vertically of course). Everything is happy, except whenever I install almost anything from apt-get, synaptic, or update-manager, I now and then see messages on the console such as:
Option "Rotate" "CCW"
Option "RandRRotation" "on"
This is fine, it does not impede installations of updates.
Xlib: extension "RANDR" missing on display ":0.0".
RandR extension missing
But if I want to temporarily rotate the display to a different orientation, I know I should be able to use a command such as: xrandr -o normal
And I get the same error. I also noticed that if I launch Nvidia's proprietary configuration tool, there is no "Rotation" option available, even though my xorg.conf file clearly indicates "RandRRotation" "on" -- and this happens regardless of whether "RandRRotation" "on" is above or below "rotate" "CCW"
If I remove the line "ROTATE" "CCW" -- THEN what happens:
- Login screen is always landscape (horizontal)
- After login, the window is still landscape, until I change it.
- I can change it, because both the RANDR extension is available (I can use xrandr -o left) AND the rotation option is available in the Nvidia configuration app.
1. Are "Rotate" in xorg.conf and RANDR extension mutually exclusive? If so, is that documented somewhere? I could not find it in the X man pages.
2. Is it somehow possible to have the login screen in Portrait mode and still have the RANDR extension available, to be able to run xrandr commands?
Thanks in advance!