1920x1200 resolution from ATI RADEON Xpress 200?

Has anyone succeeded in getting X to use a resolution of
1920x1200
with an ATI RADEON Xpress 200 graphics controller?  I have a
nifty 
23" Acer AL2416W monitor which is capable of 1920x1200,
but X is not
giving it to me.  Interestingly, it logs:

(II) VESA(0): Supported additional Video Mode:
(II) VESA(0): clock: 154.0 MHz   Image Size:  518 x 324 mm
(II) VESA(0): h_active: 1920  h_sync: 1968  h_sync_end 2000
h_blank_end 2080 h_border: 0
(II) VESA(0): v_active: 1200  v_sync: 1203  v_sync_end 1209
v_blanking: 1235 v_border: 0

... but despite my efforts at persuading it, it ends up
giving me:

(**) Option "PreferredMode" "1920x1200"
(--) VESA(0): Virtual size is 1600x1200 (pitch 1600)

I've even tried building an explicit Modeline using the
values given above;
still no luck.

If anyone has made this work, I'd like to see your
XF86Config file.

In case it matters:
  NetBSD version: 3.0
  port: amd64
  XFree86 Version 4.5.0
  Release Date: 16 March 2005
  Build Date: 18 December 2005
  Jan 22 18:50:12 quill /netbsd: vga0 at pci1 dev 5 function
0: ATI Technologies product 0x5954 (rev. 0x00)



Anne.
-- 
Ms. Anne Bennett, as a private citizen:  anneporcupine.montreal.qc.ca
Also reachable more officially at work:  anneencs.concordia.ca

On Monday 23 January 2006 13:23, Anne Bennett wrote:
> Has anyone succeeded in getting X to use a resolution
of 1920x1200
> with an ATI RADEON Xpress 200 graphics controller?  I
have a nifty
> 23" Acer AL2416W monitor which is capable of
1920x1200, but X is not
> giving it to me.  Interestingly, it logs:
>
> (II) VESA(0): Supported additional Video Mode:
> (II) VESA(0): clock: 154.0 MHz   Image Size:  518 x 324
mm
> (II) VESA(0): h_active: 1920  h_sync: 1968  h_sync_end
2000 h_blank_end
> 2080 h_border: 0 (II) VESA(0): v_active: 1200  v_sync:
1203  v_sync_end
> 1209 v_blanking: 1235 v_border: 0
>
> ... but despite my efforts at persuading it, it ends up
giving me:
>
> (**) Option "PreferredMode"
"1920x1200"
> (--) VESA(0): Virtual size is 1600x1200 (pitch 1600)
>
> I've even tried building an explicit Modeline using the
values given above;
> still no luck.
>
> If anyone has made this work, I'd like to see your
XF86Config file.
>
> In case it matters:
>   NetBSD version: 3.0
>   port: amd64
>   XFree86 Version 4.5.0
>   Release Date: 16 March 2005
>   Build Date: 18 December 2005
>   Jan 22 18:50:12 quill /netbsd: vga0 at pci1 dev 5
function 0: ATI
> Technologies product 0x5954 (rev. 0x00)

The following did the trick for ATI X300 and 1920x1200
laptop LCD  
(xorg-server):

Section "Monitor"
    Identifier  "My Monitor"
    HorizSync   31.5-120
    VertRefresh 50-160
EndSecdtion

Section "Screen"
    Identifier  "Screen 1"
    Device      "** ATI Radeon (generic)              
[radeon]"
    Monitor     "My Monitor"
    DefaultDepth 24

    Subsection "Display"
        Depth       8
        Modes       "1920x1200"
"1280x1024" "1024x768"
"800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes       "1920x1200"
"1280x1024" "1024x768"
"800x600" "640x480"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes       "1920x1200"
"1280x1024" "1024x768"
"800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection

cheerio Berndt