Re: Sane behavior of fbset

["Antonino A. Daplas" <adaplas@hotpop.com>]

On Saturday 19 June 2004 11:16, David Eger wrote:
> On Sat, Jun 19, 2004 at 02:40:46AM +0800, Antonino A. Daplas wrote:
> > In 2.6
> >
> > 1. If you use fbset, you will get screen corruption or hang the GPU
> >
> > 2. stty will do the function of fbset.  However, stty will only pass rows
> > and cols (xres and yres respectively).  There is no information for bit
> > depth, timings, virtual resolution, etc.
>
> So *this* is what's going on with my port of the cirrusfb driver--why fbset
> wasn't working... for radeonfb fbset still works in 2.6, so i didn't
> realize there was this problem... What's so wonky with the fbset code path
> that screws things up? and why does stty work?

The flow of fbset is upstream:  fbset->fbdev->fbcon->vc (2.4 code)
The flow of stty is downstream: stty->vc->fbcon->fbdev (2.6 code)

I don't know how radeonfb does it though.

Tony




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