Bug#483314: xserver-xorg-video-intel: [945GM] Wrong resolution used for external monitor

["Sander Marechal" <s.marechal@jejik.com>]

Julien Cristau writes: 

> On Wed, May 28, 2008 at 12:25:26 +0200, Sander Marechal wrote: 
>
> > I have a Dell D520 laptop with an Intel 945GM chipset. The internal 15"
> > screen has a resolution of 1400x1050. When I hook up an external monitor
> > (A bog standard Dell 17" TFT, model no. 1704FPTt) then the intel driver correctly detects that it has a
> > maximum resolution of 1280x1024 (according to Xorg.0.log, see
> > attachment) but X still seems to start a 1400x1050 display. 
> I'm not sure what the problem is here.  The internal panel and the
> external monitor are both enabled, according to the log the panel uses
> 1400x1050 and the external monitor 1280x1024.  What behaviour did you
> expect instead?
> You can disable the internal screen with xrandr --output LVDS --off, but
> by default all connected outputs are enabled.

The problem is that the external monitor also seems to be running 1400x1050, 
but I only see the top-left 1280x1024 part of it. I can move my mouse in the 
parts between 1280 and 1400 horizontal, and between the 1024 and 1050 
vertical. The mouse cursor disappears, but  it's definitely there, because 
it takes time to scroll back. When I maximize an application, it becomes 
1400 pixels wide and 1050 pixels (minus the height of the gnome-panel) high. 
That means I don't see the minimize/maximize/close buttons. They're 
off-screen. When iceweasel is maximized, I don't see the statusbar at the 
bottom. It falls behind the gnome-panel. 

Note that my laptop lid is closed.