Xpress 200 dual head problem

Alex Deucher alexdeucher at gmail.com
Mon Apr 23 10:41:41 PDT 2007

On 4/23/07, Ali Mashtizadeh <mashtizadeh at gmail.com> wrote:
> So I looked around on mailing lists and bug reports but I can't find
> anything too similar to the problem I have on my HP NX6125 Its an ATI
> Xpress 200M. For some reason when I get the dual head "working" I have
> a blank second screen which shows either random pattern of red pixels
> or completely blank. The cursor shows up as a block and the resolution
> seems to be fine. I read in a few places that the IGP chipsets have
> memory initialization problems. I can believe that thats likely what
> is happening because only the hardware cursor shows up. Anyone have
> similar problems? I've tried the recent 6.6.191 drivers as well. FYI I
> can get clone mode working by using the BIOS key, then running X and
> using the BIOS key again and that seems to be reliable. But I really
> would like dual head working.
> Chipset: 200M 5955 (PCIE)
> ....
> (II) RADEON(0): Legacy BIOS detected
> (II) RADEON(0): LVDS port is not in connector table, added in.
> (WW) RADEON(0): Unknown DDCType 5 found
> (WW) RADEON(0): LCD DDC Info Table found!
> (II) RADEON(0): Connector0: DDCType-0, DACType-1, TMDSType--1, ConnectorType-1
> (II) RADEON(0): Connector1: DDCType-4, DACType-0, TMDSType--1, ConnectorType-2
> (II) RADEON(0): DDC Type: 4, Detected Type: 0
> (II) RADEON(0):
> (II) RADEON(0): Primary:
>  Monitor   -- LVDS
>  Connector -- VGA
>  DAC Type  -- Primary
>  TMDS Type -- NONE
>  DDC Type  -- CRT2_DDC
> (II) RADEON(0): Secondary:
>  Monitor   -- NONE
>  Connector -- Proprietary
>  DAC Type  -- TVDAC/ExtDAC
>  TMDS Type -- NONE
>  DDC Type  -- NONE
> (II) RADEON(0): PLL parameters: rf=1432 rd=6 min=20000 max=40000; xclk=20500
> (WW) RADEON(0): Failed to detect secondary monitor, MergedFB/Clone mode disabled

looks like it failed to detect the secondary monitor.  Can you try
forcing mergedfb on?  you might also have to specify the monitorlayout
(e.g., Option "Monitorlayout" "LVDS, CRT") and hsync and vrefresh
ranges for your monitor. See the radeon man page for more.

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