Laptop - Wrong resolution on external display

[Guest]

Here is my setup :
My laptop is a Thinkpad X60 with an integrated graphics chipset INTEL 945GM.
It is docked in an X6-docking station.
An external LCD monitor is plugged on the docking station (using the VGA connector).
The laptop's lid is generally closed (resolution 1024x768).

With this setup, the external monitor is set up by X with a 1024x768 resolution whereas the preferred one is 1280x1024.
It is not possible to choose this resolution in the drop-down-list for the external VGA in the display-settings.

Expected behaviour :
When the lid is closed, the LVDS panel should be disabled and the external monitor should be set up with its preferred resolution.
When the lid is opened, 2 possibilities :
-1- the LVDS panel should be disabled and the external monitor should be set up with its preferred resolution.
-2- both monitor are enabled, set up with their preferred resolution and configured as "extended desktop" (one desktop on two monitors).

I would be really gratefull if somebody could help me with this.

[theducks]

Re: Laptop - Wrong resolution on external display

It may be worse. Toshiba S1135 Intel 855GM chip set.
If you boot with an wide screen (1920x1050) attached,
The LVDS monitor, will not show the full desktop

[pga]

Re: Laptop - Wrong resolution on external display

I've got a similar problem.

I have Compaq nx6110 laptop with Intel 915 video controller and 1024x768 native resolution
and external 1680x1050 LCD panel connected to the VGA output.

After restart I have login screen on both displays with 1024x768 resolution.
I changed resolution of external LCD to 1680x1050 but system apply this resolution
only if I open screen settings (even without change anything).
So after login I have to always open screen settings because system can't use
my settings after restarting of X-server.

Does anybody know how to save screen settings permanently?
Where new Kubuntu with KDE4 store saved display settings because my
/etc/X11/xorg.cong file is empty.
I have changed it for tests but without visible results.

Thank you for your help.

[monte48lowes]

Re: Laptop - Wrong resolution on external display

Well... now that X is hotpluggable the settings are no longer contained in xorg.conf. I am certain there are 'hal' policies that are adjustable to get the desired result. I had to add one to my laptop to get the touchpad working correctly. I recommend evaluating the solution using updates to the 'hal' policies.

Mike

[dmordan]

Re: Laptop - Wrong resolution on external display

I have the same issues on a Dell D620 with a Dell 19" 1280x1024 monitor connected via VGA. Even with the lid closed the laptop display must be turned off manually, the external monitor resized, and the taskbar lengthened to fit the screen on each boot. I'm also curious on how to fix this.

How does one go about changing HAL policies?

D

[pga]

Re: Laptop - Wrong resolution on external display

I have found the solution here:
http://www.thinkwiki.org/wiki/Xorg_R...ng__.24_xrandr

It works with my laptop where I need mainly external monitor.

I have made /etc/X11/Xsession.d/45custom_xrandr-settings file with content:

EXTERNAL_OUTPUT="VGA"
INTERNAL_OUTPUT="LVDS"

xrandr |grep $EXTERNAL_OUTPUT | grep " connected "
if [ $? -eq 0 ]; then
    # internal output switched off if external panel connected
    xrandr --output $INTERNAL_OUTPUT --off --output $EXTERNAL_OUTPUT --auto
else
    # only internal output (external panel disconnected)
    xrandr --output $INTERNAL_OUTPUT --auto --output $EXTERNAL_OUTPUT --off
fi

This solution isn't perfect but at least it works.
And keep far away from Kubuntu Screen Settings...