[Openchrome-users] A7V400-MX + 1680x1050 ?!

[Luc Verhaegen]

On Fri, Sep 28, 2007 at 03:08:36PM +0200, Xavier Bachelot wrote:
> jarkko saarinen wrote:
> > I'm sorry if this is double post. Something happened, so I'll send this 
> > again.
> > 
> > I'am buing new monitor but don't want to change computer itself. So the 
> > morherboard mentioned in subject does show up resolutions up to 1600x1200 
> > but can it do 1680x1050? And with Ubuntu? I've tried to hunt this 
> > information for a some time now and would be very pleased if someone could 
> > lighten things up.
> > 
> > At this moment Ubuntu only shows 1024x768 so I'll have to shake things up 
> > anyway. I was just hoping to do everything at once with new monitor.
> > 
> >    Jarsa
> > 
> yup, 1600*1200>1680*1050, it consumes less bandwidth.
> 
> Your monitor should give its supported modelines thru ddc and they'll be 
> available to the driver. KM400A is perfectly capable of using free 
> modelines, so it should just work.
> 
> Your conf should look something like that (minus other unrelated section) :
> 
> Section "Device"
>          Identifier  "Videocard0"
>          Driver      "via"
> EndSection
> 
> Section "Monitor"
> 	Identifier    "Monitor0"
> 	Option        "DPMS"
> EndSection
> 
> Section "Screen"
>          Identifier "Screen0"
>          Device     "Videocard0"
>          Monitor    "Monitor0"
>          DefaultDepth     24
>          SubSection "Display"
>                  Viewport  0 0
>                  Depth     24
> 		Modes     "1680x1050"
>          EndSubSection
> EndSection
> 
> 
> Hand me the screen, I got the same mobo, I'll tell you for sure if it 
> works ;-)
> 
> Regards,
> Xavier

Add Option "ReducedAllowed" "TRUE" to the monitor section, and if needs 
be, generate the required mode through cvt -r. Reduced blanking is 
allowed on TFTs and reduces the bandwidth by about 22%.

Luc Verhaegen.
SUSE/Novell X Driver Developer.