Re: [Linux-fbdev-users] RE: rotate the screen on ARM board

[Antonino A. D. <ad...@ho...>]

On Thursday 03 March 2005 20:28, Mukund JB. wrote:
> Hello komal,
>
> Is it a must that hardware should support the screen rotation. Can't we
> handle that in an fb driver? And, if possible do explain me that like
> How & where the fb driver allows changes to support screen rotation.

It doesn't.

>
> Please suggest me how can I activate the frambuffer on RedHat 9. It is
> not active on my system. When I say fbset -i, it responds saying
> open /dev/fb0: No such device
>
> I have a Intel Corp. 82810E DC-133 Graphic controller on my system. Is a
> fb driver specific to this. Does the generic fbdev work with this
> controller?

vesafb does not work for the i810.  You have to enable the specific driver
for it, i810fb, in your kernel config.  The i810fb is only available for 2.6
kernels, but you can grab an old patch for 2.4 in

http://i810fb.sf.net

Grab the latest one, and it should apply to any recent 2.4 kernel.  You might
get hunk failures but it should be easy to fix.

Tony

BTW, the i810 does not support hardware rotation. It can be done in software,
if you enable the fbdev driver for X.