Re: Re: Added 915G to intelfb of 2.6.10-kernel-sources

On Saturday 29 January 2005 00:42, Sylvain Meyer wrote:

        Hi Axel,

    Thanks for your patch but could you format it as described in this
document
http://www.zip.com.au/~akpm/linux/patches/stuff/tpp.txt

and resend it.

The best is to use these tools to maintain and send kernel patches
http://www.zip.com.au/~akpm/linux/patches/

Also you should subscribe and send fbdev-related mails to
linux-fbdev-devel@lists.sourceforge.net

Regards
Sylvain

Buttchereit, Axel (XLsigned) a écrit:

quoted

Hi,

though I'm quite sure that the attached patch (intelfb-...) is far
from complete
I think that someone/you (guessing from the comments that you are
maintaining
the code) might be interested in my work.

Can you resend the patch that touches only intelfb?  Also, there are a lot
of XLSigned with the printk's, what is that?

quoted

Having no technical documentation (from Intel) I had to "develop" the
patch by
looking at the xfree/xorg-code that already supports I915G and by using
trial-and-error (My ThinkCentre's internal graphics device is an I915G
and that made me start working on this subject).

During development and testing I've discovered that the way "intelfb"
and maybe
other framebuffer-drivers are using "modedb" does not work, if
compiled as a
module. The initial "modedb entries" are lost (overwritten?) when
"fb_find_mode"
is called from the module. Linking "intelfb" into the kernel works as

Because the modedb array is marked __init.  You can however pass
the vesa_modes array instead to fb_find_mode().
 

quoted

expected.

ByTheWay: Why isn't the framebuffer module (intelfb) automatically
loaded, if
"video=intelfb:..." is specified as kernel-parameter?

If you want it loaded automatically, compile the driver statically. If you don't
want to load a compiled-in driver, use:

video=intelfb:off

Tony




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