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[Bug 576469] Re: 4:3 monitor not supported in login, install, switch user etc

 

I believe this should be easy to address- all that needs to happen is
when you set your monitor resolution, it should automatically set log in
screen/ splash screen etc

until that happens I found the following solution id anyone else needs a
work around:

http://chrisjakeway.wordpress.com/2010/05/19/ubuntu-10-04-default-login-
screen-gdm-resolution/

>From a Ubuntu terminal or command prompt, list the available video modes
and the name of the output device (in this case “default”):

$ sudo xrandr

    Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1180 x 885
    default connected 1024×768+0+0 0mm x 0mm
    800×600        60.0     56.0      0.0
    640×480        60.0      0.0
    320×240         0.0
    400×300         0.0
    512×384         0.0
    1024×768        0.0*
    . . .

To set a new default for the login screen:

$ sudo gedit /etc/gdm/Init/Default

Look for the lines:

PATH=/usr/bin:$PATH
OLD_IFS=$IFS

Immediately following those lines add in:

xrandr --output default --mode 1024x768

Where “default” is the name of the screen output to configure and
1024×768 is the desired gdm resolution.

-- 
4:3 monitor not supported in login, install, switch user etc
https://bugs.launchpad.net/bugs/576469
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References