Re: VESAFB CUSTOM RESOLUTION

From: Al Boldi
Date: Wed Jul 18 2007 - 06:42:19 EST


Geert Uytterhoeven wrote:
> On Wed, 18 Jul 2007, Sasa Ostrouska wrote:
> > Daniel you seem to be right, as till now, no one of those solutions
> > for me worked, I always end up or with a non recognised option or a
> > small square 640x480 pixels where I see the console. I need to try
> > still the vbetest thing what Mr. Daplas proposed.
> >
> > In any case this laptop has an screen of 16:10 aspect ratio and I
> > belive would be good
> > to have those modes in the vesafb driver.
>
> There are no modes in the vesafb driver. The vesafb driver uses the
> video mode that was set by the BIOS before starting Linux.

I have a similar problem with an onboard VIA-UniChrome chip, driven through
an out-of-tree vendor-supplied driver just to get 85Hz refresh. Other than
the pain of maintaining this driver out-of-tree, I have to contend with a
50% speed reduction compared to vesafb.

vesafb is probably the most important display driver for compatibility
reasons, and as such should support a large range of functionality.

Is there any technical reason why vesafb shouldn't support non-BIOS modes?


Thanks!

--
Al

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