Re: MergedFB Mode Usage

I've not tried mergedfb on PPC, but it looks like you have your crtcs
mixed up.  usually crtc1 is the LCD/DVI and crtc2 is the CRT.  Also
where are you getting this option:
    Option  "ForceCRT2Type" "LCD"
I don't see that in the 4.3.0 sources and the driver ignores it:
(WW) RADEON(0): Option "ForceCRT2Type" is not used.

Are you using radeonfb?  I'm not sure if mergedfb works in combination
with radeonfb.  you might try not loading radeonfb.  if you have to run
radeonfb, and you've reversed the crtcs using radeonfb, you might have
to upgrade to cvs and use the "MonitorLayout" option to switch the
crtcs.  Just a guess, I don't use radeonfb.  Apple may have also wired
the DACs wrong.  their is a fix for this in CVS, but alas I haven't
updated my patches to build against the most recent cvs.

Also 16 MB of ram is not enough for 3D accel on a 2048x768 framebuffer
with 24 bpp.  you'll need to switch to 16 bpp if you want 3D.

the monitor section should refer to what is connected to crtc1, which
if I'm right, should be your LCD not your monitor.  then use the
CRT2HSync and CRT2Vrefresh options to supply the ranges for your
external monitor.

There also may be an issue with using crtc2 on PPC.  does xinerama
based dualhead work for you?  how about dualhead in macos?

Alex

--- "Andreakis, Dean (MED)" <Dean.Andreakis@xxxxxxxxxx> wrote:
> I am trying to enable MergedFB mode from Alex D.and am having some
> issues, specifically when I do a startx I get black/blank screens. I
> am
> sure its probably some cfg. issue I have wrong in my XF86Config-4
> file
> but I need some help to pinpoint it. 
> 
> CFG: ibook w/ Debian(sid), XFree86 v4.3.0 plus Alex D. MergedFB code.
> 
> 
> My XF86Config-4 and XFree86 log files are below. The log file has
> "(EE)
> RADEON(0): No valid mode found for CRTC2" which indicates it can't
> find
> a valid mode for CRTC2 but I have checked the modes for CRTC2 with
> fbset
> etc. and it seems what I set in my XF86Config-4 file is correct. 
> 
> I am assuming that in my setup/XF86Config-4 file (ibook w/ and
> external
> monitor connected to the video out port on the side of the ibook)
> CRTC1
> is the external monitor and CRTC2 is the internal LCD panel so if
> this
> is wrong then this may be the issue. Any help is appreciated.
> 


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