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Re: F10: can't get dual-head working



Dave Mitchell wrote:
I have a laptop with F10, and am trying to get an external VGA LCD panel to
work (in a dual-head setting).

I did the following:

* login using gnome
* attach + power up monitor (it goes into 'no-signal' power save mode)
* Fire up gnome-display-properties (System > Preferences > Hardware >
  Screen Resolution)

It detects the external monitor; I select it, change its resolution from
'off' to '1440x900', click apply, and the monitor resolutely stays in
power save mode.

Also, quitting then restarting gnome-display-properties shows the
monitor's resolution setting has switched back to 'off'.

Any suggestions?

It's a Dell 640m laptop with Intel 945GM graphics.

xrandr shows:

Screen 0: minimum 320 x 200, current 1440 x 900, maximum 1440 x 1440
VGA connected (normal left inverted right x axis y axis)
1440x900 59.9 + 75.0 59.9 1400x1050 60.0 1280x1024 75.0 60.0 1280x960 60.0 1152x864 75.0 1024x768 75.0 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 640x480 75.0 72.8 75.0 66.7 59.9 720x400 70.1 LVDS connected 1440x900+0+0 (normal left inverted right x axis y axis) 300mm x 190mm
   1440x900       60.0*+
1024x768 60.0 800x600 60.3 640x480 59.9 TV disconnected (normal left inverted right x axis y axis)


This helped me:

http://www.thinkwiki.org/wiki/Xorg_RandR_1.2


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