Why is this resolution "inaccessible"?

[Stuart Kreitman]

try stuffing 320x240 into mode 30, just to see if it might pick it up.

Very strange that the chipset name is unknown. what does the rest of 
Xorg.0.log say about the graphics?

skk

Mikael Eriksson wrote:

>On Thu, Jan 19, 2006 at 11:08:12PM -0500, Alex Deucher wrote:
>  
>
>>If you are using the intel hardware you are limited to what modes the
>>bios knows how to program.  if it doesn't have a 320x240 mode you are
>>out of luck (unless you use the various i8/9xxreolution, and
>>replacemode tweaks.
>>    
>>
>
>% sudo 855resolution -l
>855resolution version 0.4, by Alain Poirier
>
>Chipset: Unknown (id=0x25908086)
>VBIOS type: 2
>VBIOS Version: 3412
>
>Mode 30 : 640x480, 8 bits/pixel
>Mode 32 : 800x600, 8 bits/pixel
>Mode 34 : 1024x768, 8 bits/pixel
>Mode 38 : 1280x1024, 8 bits/pixel
>Mode 3a : 1600x1200, 8 bits/pixel
>Mode 3c : 320x240, 8 bits/pixel
>Mode 41 : 640x480, 16 bits/pixel
>Mode 43 : 800x600, 16 bits/pixel
>Mode 45 : 1024x768, 16 bits/pixel
>Mode 49 : 1280x1024, 16 bits/pixel
>Mode 4b : 1600x1200, 16 bits/pixel
>Mode 4d : 320x240, 16 bits/pixel
>Mode 50 : 640x480, 32 bits/pixel
>Mode 52 : 800x600, 32 bits/pixel
>Mode 54 : 1024x768, 32 bits/pixel
>Mode 58 : 1280x1024, 32 bits/pixel
>Mode 5a : 1600x1200, 32 bits/pixel
>Mode 5c : 320x240, 32 bits/pixel
>
>Note that I have not used 855resolution to changes the modes.
>
>And yet Xorg.0.log says:
>(II) I810(0): Not using mode "320x240" (no mode of this name)
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>  
>