Mailinglist Archive: radeonhd (222 mails)

[Werner Almesberger <werner@xxxxxxxxxxxx>]

I have a triple-head setup of which two screens are driven by an ATI
Radeon HD 2400 Pro (RV610). Right now, both screens are treated as one
large framebuffer, but I'd like to configure it such that they appear as
separate framebuffers, e.g., :0.1 and :0.2.

I've been able to do this on an older PC, but I don't know if this is
also possible with the new hardware and the radeonhd driver. Is it ?

I have to admit that I don't quite understand what magic specifically
tells X to turn this into two framebuffers, and which part of it is
generic and which driver-specific.

The old PC, where all three screens had separate frame buffers:
1) ATI Radeon 9550 (RV350 AS), dual (driver "radeon")
2) nVidia GeForce FX 5500, single (driver "nv")
Configuration: http://www.almesberger.net/misc/xorg.conf.cs

The new PC, where the two screens on the ATI are joined:
1) nVidia GeForce 7300 SE, single (driver "nv")
2) ATI Radeon HD 2400 Pro (RV610), dual (driver "radeonhd")
Configuration: http://www.almesberger.net/misc/xorg.conf.ws
  plus
  DISPLAY=:0.1 xrandr --output VGA_1 --right-of DVI-I_1/analog
  early in .xinitrc.

By the way, thanks a lot for making radeonhd work when the card is the
second in the system. Both "nv" and "radeon" just yielded all sorts of
crashes when trying that configuration.

Thanks,
- Werner
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