having Virtual be smaller than Mode size?

Nicolas Mailhot nicolas.mailhot at laposte.net
Sun Feb 5 10:48:46 PST 2006


Le dimanche 05 février 2006 à 19:36 +0100, Luc Verhaegen. a écrit :
> On Sun, Feb 05, 2006 at 07:20:51PM +0100, Nicolas Mailhot wrote:
> > Le jeudi 26 janvier 2006 à 20:47 +0100, Luc Verhaegen a écrit :
> > > This does require a driver capable of doing proper modesetting though.
> > 
> > This does not work with my dvi-connected lcd. It will scale to full
> > screen regardless of the blanking tricks I tried. It seems the black bar
> > thing (widescreen film on 4/3 screen or the reverse) can only be
> > achieved by X drawing the bars itself (ie present the full screen
> > resolution to the screen, only a part of it to the apps, and fill the
> > rest in black)
> > 
> > This would allow all sorts of cloning strategies between screens that
> > have different aspect ratios BTW

> You've copied over the relevant bit: It requires a driver that is 
> capable of doing proper modes.
> 
> Please detail what driver you're using.

Radeon driver

> You might even want to provide 
> a (g/bzipped) log.

Here it is
I started from a cvt 1232 768 74 --reduced-blanking modeline
(screen ratio is 16/10, I wanted a 4/3 1024*768 and the 74 is to avoid
the default 1024*768 at 75 mode stamping on my modeline)

I used xrandr in a term to switch on my new 1024*768 at 74 mode once
logged, and the result occupied the full screen 

Regards,

-- 
Nicolas Mailhot
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