Radeon FireMV 2400 PC Quad head card (Working!)

[Erwin Rol]

On Wed, 2006-02-08 at 02:26 +0100, Erwin Rol wrote:
> Hello all,
> 
> with Benjamins latest patches i can start Xorg on my quad head card
> without hanging my machine. Console Switching also seems to work
> normally with this card.
> 
> What i am trying now is to get all 4 heads to be one big xinerama setup.
> The card shows up as 2 M9 chips, both with two outputs.  I tried several
> combinations but it always seems monitor 1 and 2 are cloned and monitor
> 3 and 4 are. I can't get the 4 monitors to show different pictures. The
> mouse on the other hand seems to think there are 4 screens, because when
> it leaves monitor 1/2 it does not show up on monitor 3/4 , it takes some
> mouse moving before it gets to monitor 3/4. 

It seems that the card switches to Clone mode when it doesn't detect a
second monitor, no option in the config seems to stop that. The Xorg.log
file did say MergedFB was used. When i changed the MonitorLayout option
from "CRT, CRT" to "AUTO, AUTO" and connected both monitor it worked in
MergedFB mode. With "CRT, CRT" it doesn't seem to detect the monitors,
and switch to clode mode, with "Auto, Auto" it does detect the monitors,
and it does work in mergedfb mode.  Interesting is also that i only have
two monitors, but output 3/4 seem to do clone, when output 1/2 do clone,
and do mergefb when output 1/2 does mergefb.

Would there be a way to force the mergefb setup without monitors being
attached to the card ? 

I don't know if it is important but the FireMV 2400 has two VHDCI
connectors, that end up in 4 DVI-I connectors via two Y-cables.

- Erwin

----------Two CRT's connected --- MonitorLayout "CRT, CRT" ------------

(II) RADEON(0): Connector0: DDCType-2, DACType-0, TMDSType-0, ConnectorType-3
(II) RADEON(0): Connector1: DDCType-4, DACType-1, TMDSType-1, ConnectorType-3
(**) RADEON(0): MonitorLayout Option:
        Monitor1--Type CRT, Monitor2--Type CRT

(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): DDC Type: 3, Detected Type: 0
(II) RADEON(0):
(II) RADEON(0): Primary:
 Monitor   -- CRT
 Connector -- VGA
 DAC Type  -- TVDAC/ExtDAC
 TMDS Type -- NONE
 DDC Type  -- NONE
(II) RADEON(0): Secondary:
 Monitor   -- CRT
 Connector -- VGA
 DAC Type  -- Primary
 TMDS Type -- NONE
 DDC Type  -- VGA_DDC
(II) RADEON(0): PLL parameters: rf=2700 rd=12 min=20000 max=40000; xclk=20000
(WW) RADEON(0): Failed to detect secondary monitor DDC, default HSync and VRefresh used
(II) RADEON(0): MergedFB mode forced on.


----- Two CRT's connected --- MonitorLayout "Auto, Auto" ---------------

(II) RADEON(0): Connector0: DDCType-2, DACType-0, TMDSType-0, ConnectorType-3
(II) RADEON(0): Connector1: DDCType-4, DACType-1, TMDSType-1, ConnectorType-3
(WW) RADEON(0): Invalid Monitor type specified for 2nd port
(**) RADEON(0): MonitorLayout Option:
        Monitor1--Type Auto, Monitor2--Type Auto

(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): DDC Type: 2, Detected Type: 1
(II) RADEON(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) RADEON(0): I2C device "DDC:ddc2" removed.
(II) RADEON(0): DDC Type: 4, Detected Type: 1

<snip lots of I2C/DDC/EDID info>

(II) RADEON(0): Reversed DAC decteced
(II) RADEON(0): Primary:
 Monitor   -- CRT
 Connector -- DVI-I
 DAC Type  -- Primary
 TMDS Type -- Internal
 DDC Type  -- DVI_DDC
(II) RADEON(0): Secondary:
 Monitor   -- CRT
 Connector -- DVI-I
 DAC Type  -- TVDAC/ExtDAC
 TMDS Type -- External
 DDC Type  -- CRT2_DDC
(II) RADEON(0): PLL parameters: rf=2700 rd=12 min=20000 max=40000; xclk=20000
(II) RADEON(0): MergedFB mode forced on.