RE: MergedFB Mode Usage

I'm not sure what to tell you.  Have to been able to use crtc2 at all? 
In macos or xfree86 'screen' dualhead mode?  Are you using radeonfb? I
seem to recall some threads about crtc2 not working properly/at all on
PPC, but I'm not familiar with the platform.  You might try one of the
debian ppc lists or ask Michel Daenzer or Benjamin Herrenschmidt.  They
are more familiar with the state of radeon support for PPC. If you are
able to get crtc2 working mergedfb should "just work."  You might try
setting up a 'screen' based dualhead config and see if you can get that
working.  if that doesn't work then there is a problem with crtc2
support on mac hardware since mergedfb and 'screen' based multihead
touch the hardware the same way.  

Alex

--- "Andreakis, Dean (MED)" <Dean.Andreakis@xxxxxxxxxx> wrote:
> Alex,
> 
> I went ahead and switched crtc1&2 around in my config file and
> changed
> bpp to 16 as you suggested but still when I do a startx I get
> black/blank screens. My updated config file and the latest log file
> are
> below.
> 
> The only thing I see in the log file is that it gives an error "No
> valid
> mode found for CRTC2" (see snippet below). I double-checked the hsync
> and vrefresh ranges with the external minitor specs. and they match
> si I
> don't know what could be wrong. Again, any suggestions are welcome.
> 
> (II) RADEON(0): CRT2 modes validation ------------ 
> (II) RADEON(0): HSync for MergedFB Mode from config file: 31-64
> (II) RADEON(0): VRefresh for MergedFB Mode from config file: 50-75
> (II) RADEON(0): DDC detection (type 0) for MergedFB modes
> (II) RADEON(0): I2C bus "DDC" initialized.
> (II) RADEON(0): Total number of valid DDC mode(s) found: 0
> (EE) RADEON(0): No valid mode found for CRTC2
> (II) RADEON(0): Total of 0 MergedFB modes found ------------ 
> 
> (II) RADEON(0): Validating modes on Primary head (DDCType: 0)
> ---------
> (WW) RADEON(0): lcd: Using default hsync range of 28.00-33.00kHz
> (WW) RADEON(0): lcd: using default vrefresh range of 43.00-72.00Hz
> (II) RADEON(0): Clock range:  12.50 to 350.00 MHz
> (II) RADEON(0): Not using mode "1024x768" (hsync out of range)
> 


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