Unable to change X resolution

[Derek Broughton]

Mike Linksvayer wrote:

> On Fri, Jun 16, 2006 at 10:02:13AM -0300, Derek Broughton wrote:
>> Mike Linksvayer wrote:
>> 
>> > Ubuntu 6.06 (upgrade from 5.10, though this didn't work on 5.10, I
>> > just never bothered to try to fix it), Dell Inspiron 6000, i915GM
>> > video chipset.
>> > 
>> > I'm using 915resolution to obtain 1920x1200.
>> 
>> hmmm.  I really didn't think this screen had so high a resolution (mine -
>> same machine, same screen, only goes to 1280x800 under Windows, so I
>> thought that was the max).
> 
> It was available in WXGA (your resolution), WSXGA+ or WUXGA (my
> resolution).  I paid about $200 extra for WUXGA IIRC.

Don't remember, but I thought I got the best available.  But then it may
have been the best available at the time.
>  
>> >   Subsection "Display"
>> >     Depth       24
>> >     Modes       "1920x1600" "1600x1200" "1280x1024" "1024x768"
>> >     "800x600"
>> >   EndSubsection
>> > EndSection
>> 
>> You don't even _have_ 1920x1200 specified, so I can only imagine that
>> 915resolution is completely overriding this.
> 
> That's a typo but it is my actual xorg.conf so I guess that's proof
> ... of something.  But not 915overriding as if I do not run
> 915resolution at startup 1600x1200 is my only option.  It is almost
> as if xorg.conf is being ignored, but if I introduce a syntax error
> X won't start, so it isn't being completely ignored.

I think you're on the right track - it certainly doesn't seem that _that_
mode configuration is being used.

I've never tried the "UseModes" option, so what happens if you take the
modelines out of the Modes section and put them directly in the Monitor
section.  What happens if you remove the modeline for one of the modes that
_does_ work - do you get a syntax error?
-- 
derek