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

[Daniel B. Thurman]

On 08/24/2009 11:12 AM, Tom Horsley wrote:
> On Mon, 24 Aug 2009 10:33:25 -0700
> Daniel B. Thurman wrote:
>
>    
>> What can I do now?
>>      
> No idea. It looks like the log file says 1600x1200 is a valid mode.
> I don't see it saying any reason why it won't use it. Maybe
> someone more familiar with the log output generated by the
> intel driver has an idea?
>
> Do you have an /etc/X11/xorg.conf file that explicitly mentions
> 1280x1024? Maybe just renaming the xorg.conf file would make
> things work?
>
>    
The xrandr command says that it cannot "see" beyond
1280x1024.  I am assuming this is a problem?

Here is my xorg.conf file as generated by system-conf-display:
======================================
# Xorg configuration created by system-config-display

Section "ServerLayout"
     Identifier     "single head configuration"
     Screen      0  "Screen0" 0 0
     InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
     Identifier  "Keyboard0"
     Driver      "kbd"
     Option        "XkbModel" "pc101"
     Option        "XkbLayout" "us"
EndSection

Section "Monitor"
     Identifier   "Monitor0"
     ModelName    "Hitachi CM715"
     HorizSync    30.0 - 95.0
     VertRefresh  50.0 - 120.0
     Option        "DPMS"
EndSection

Section "Device"
     Identifier  "Videocard0"
     Driver      "intel"
EndSection

Section "Screen"
     Identifier "Screen0"
     Device     "Videocard0"
     Monitor    "Monitor0"
     DefaultDepth     24
     SubSection "Display"
         Depth     8
         Modes    "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
     EndSubSection
     SubSection "Display"
         Depth     16
         Modes    "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
     EndSubSection
     SubSection "Display"
         Depth     24
         Modes    "1152x864" "1024x768" "832x624" "800x600" "720x400" 
"640x480"
     EndSubSection
EndSection
===========================================
Note: Adding "1600x1200" to Depth 24 does not help
at all.

Again, please note that xorg works on F8/9, not F10,
not F11, so perhaps there is a major change since F9?

I also posted to the Xorg Users and may be forced to
file a bug if there is no resolution.  I just wanted to
check with others who might be having problems
but that would mean they would have to have a
CM715 monitor or similar, as nowadays this is an
ancient monitor compared to all of those flat-screens
out there! ;)  Maybe there will be a "clunkers for green"
handouts for people like me! Fat-chance! :D