RV610: two heads, two framebuffers ?
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 -- To unsubscribe, e-mail: radeonhd+unsubscribe@opensuse.org For additional commands, e-mail: radeonhd+help@opensuse.org
On Wed, Jun 18, 2008 at 6:07 AM, Werner Almesberger
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 ?
Zaphod mode is not currently possible with the radeonhd driver. radeon does support it, but you'll probably need to use the latest rc release (6.8.191) if you are having problems with secondary cards. Alex -- To unsubscribe, e-mail: radeonhd+unsubscribe@opensuse.org For additional commands, e-mail: radeonhd+help@opensuse.org
Alex Deucher wrote:
radeon does support it, but you'll probably need to use the latest rc release (6.8.191) if you are having problems with secondary cards.
Thanks ! The latest "ati" git did indeed solve the secondary card crash. One step forward :) The third screen is still acting up, though: http://bugs.freedesktop.org/show_bug.cgi?id=16417 But at least I now know which tree to bark up ;-) Thanks, - Werner -- To unsubscribe, e-mail: radeonhd+unsubscribe@opensuse.org For additional commands, e-mail: radeonhd+help@opensuse.org
participants (2)
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Alex Deucher
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Werner Almesberger