[Linux-fbdev-devel] Re: Status of radeonfb in 2.5?

[Nicholas W. <nw...@ne...>]

Michel Dänzer wrote:

> On Mit, 2002-10-16 at 22:55, Nicholas Wourms wrote:
>> 
>> A) Is it (or will it ever be) possible to run dual head
>> using two different cards (like radeon & riva-tnt2)?  I know
>> there is still much work to be done, but I was curious if
>> this was even remotely possible.
> 
> I think it should theoretically work, but as always the only way to tell
> is to try it. :)

Well there isn't much on multiheading in the documentation, so I was hoping 
for some hints or key insights into how to set this up.  Is there any 
special magic that the matrox people use to thell the kernel to initialize 
both framebuffers?

> 
>> B) Does anyone have a painless, yet precise way of
>> generating modelines for fb.modes if you are using
>> XFree-4.2?  I only ask because the XFree modelines are all
>> determined by i2c DDC probing, thus there are none in the
>> XF86Config file.
> 
> If the X driver supports Option "UseFBDev", you should be able to use
> fbset with that.
> 

Huh?  The problem is that fbset will not work because I need to populate 
fb.modes with proper mode lines.  So at the moment fbset won't work at all.  
What I was asking, since the documention was written when XFree 3.x was 
still in use,  was how do I get (calculate) the modelines for fb.modes 
based on the information the i2c DDC probing XFree-4.2.1 outputs in 
XFree.0.log?  Or is there a better way?  What might be cool is if the fb 
drivers used the lm-sensors(i2c) capabilities to automagically probe the 
information and set up the most optimal settings.  Maybe I'm talking too 
much about something I'm not all that familiar with...  Still, it would be 
nice =).

Cheers,
Nicholas