F11: Why is Xorg with Intel 945 failing to allow 1600x1200 resolutions?

[Daniel B. Thurman]

On 08/24/2009 10:35 AM, Daniel B. Thurman wrote:
>
> On Fedora 8/9, I was able to drop in my xorg.conf
> file into /etc/X11 directory and was able to get
> the X display to recognize the Monitor type and
> I get 1600x1200 resolution, but for some reason,
> I am not able to do this with Fedora 11.
>
> My monitor is a Hitachi CM715, and my onboard
> video chip is an Intel 82945G/GZ Integrated graphics
> controller.
>
> I have tried system-config-display & it seems
> to limit my resolution to 1280x1024.  I note with
> this tool, there is no possible way to change the
> vertical refresh rate.
>
> I know that F8/9, Ubuntu 8/9, and Debian 5 works with
> 1600x1200 mode, I haven't tried Fedora 10, and Fedora
> 11 is limited to 1280x1024.
>
> It seems to me that xorg on F11 is a version that does
> not support 1600x1200 mode.
>
> I have supplied an attachment for Xorg.0.log with this post.
>
> How can I resolve this problem?
>
> Thanks!
> Dan
> ------------------------------------------------------------------------
>
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My apologies for sending multiple copies
as I was having troubles with my email server,
or so I thought & keep forgetting to add the
following for additional information:
=========================================================
# On F11
# xrandr -q
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096
VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis)
360mm x 270mm
     1280x1024      75.0*
     1152x864       75.0
     1024x768       75.1     70.1     60.0
     832x624        74.6
     800x600        72.2     75.0     60.3     56.2
     640x480        72.8     75.0     66.7     60.0
     720x400        87.8     70.1

# On F9
# xrandr -q
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 2048 x 2048
VGA connected 1600x1200+0+0 (normal left inverted right x axis y axis)
360mm x 270mm
     1600x1200      75.0*+   75.0     70.0     70.0     65.0     60.0
     2048x1536      60.0
     1920x1440      60.0
     1856x1392      60.0
     1792x1344      60.0
     1400x1050      74.8     60.0
     1280x1024      85.0     85.0     75.0     60.0
     1280x960       85.0     85.0     60.0
     1152x864       85.0     75.0
     1024x768       85.0     85.0     75.1     75.0     70.1     60.0
   43.5
     832x624        74.6
     800x600        85.0     85.1     72.2     75.0     60.3     56.2
     640x480        85.0     85.0     75.0     72.8     72.8     75.0
   66.7     60.0     59.9
     720x400        87.8     85.0     70.1
     640x400        85.1
     640x350        85.1
=========================================================

Please note that the above data is obtained from
the same machine, same hardware as I multiboot
into several different OSes.

Kind regards,
Dan

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