Bug#465725: xserver-xorg-video-intel: correct display dimensions found by EDID but incorrect values used

[Julien Cristau <jcristau@debian.org>]

On Thu, Feb 14, 2008 at 11:25:05 +0100, Stuart Pook wrote:

> As you can see in the attached Xorg.0.log, the X server finds the correct
> display size of 410x310 mm and calculates a (half correct) dpi:
> 
> (**) intel(0): Display dimensions: (410, 310) mm
> (**) intel(0): DPI set to (99, 131)
> 
> However further on in the Xorg.0.log, the X server finds a different
> and incorrect display size:
> 
> (II) intel(0): Setting screen physical size to 367 x 275
> 
> Unfortunately, it is this incorrect size (and thus an incorrect dpi)
> that is given by xdpyinfo
> 
> % xdpyinfo | sed -ne '/^screen/,/resolut/p'
> screen #0:
>   dimensions:    1600x1200 pixels (367x275 millimeters)
>   resolution:    111x111 dots per inch
> 
> Where does the incorrect size of 367x275 mm come from? How can I make my
> X server automatically use the correct size and calculate the correct dpi?
> 
> I have a Dell 1600x1200 LCD screen connected via VGA.
> 
Hi Stuart,

can you run xrandr --verbose and mail the output to this bug?

Thanks,
Julien