Wrong xdpyinfo info for 15.4" monitor

[José Matos]

I am using a 15.4" laptop running rawhide. The native resolution of this 
monitor is 1680*1050. The graphics card is a according to Xorg.0.log:
(--) RADEON(0): Chipset: "ATI Radeon Mobility X600 (M24) 3150 (PCIE)" (ChipID 
= 0x3150)

Running with no xorg.conf file I get the following result for

screen #0:
  dimensions:    1680x1050 pixels (444x277 millimeters)
  resolution:    96x96 dots per inch

This is wrong, of course.

Creating an xorg.conf file with system-config-display and adding the screen 
size I have the following in section in xorg.conf:

Section "Monitor"
        Identifier   "Monitor0"
        ModelName    "LCD Panel 1680x1050"
        HorizSync    31.5 - 65.5
        VertRefresh  56.0 - 65.0
        DisplaySize  332 207
        Option      "dpms"
EndSection

Now in Xorg.0.log I get:

(**) RADEON(0): Display dimensions: (332, 207) mm
(**) RADEON(0): DPI set to (128, 206)
...
(II) RADEON(0): Setting screen physical size to 444 x 277
resize called 1680 1050

I think that second dpi is wrong it should probably be something around 
126-128. And at the same the driver is ignoring the file settings. :-(

Is this known? If it is a bug where should it be reported? xorg-x11-drv-ati?

Regards,
-- 
José Abílio