Karmic Radeon Dual Head Trouble

drew einhorn drew.einhorn at gmail.com
Sun Dec 20 18:28:34 UTC 2009


On Sun, Dec 20, 2009 at 9:45 AM, Marius Gedminas <marius at pov.lt> wrote:
> On Sat, Dec 19, 2009 at 12:38:27AM +0000, drew einhorn wrote:
>> Doesn't work any better when I back  out the fglrx driver and use just
>> the radeon driver. "Detect  Monitors"  button in Display Manager
>> doesn't see the monitory connected to the ATI card.  Nothing is wrong
>> with the monitor or cable.  If swap the cables plugged into the svga
>> port is see theother monitor on the Intel graphics adapter on the
>> motherboard.
>

Didn't notice the embarrassing typos before I sent it!

> Ah!  I'm afraid that currently dual-head with two different video cards
> is not a supported configuration, currently.  XRandR 1.3 was supposed to
> add support for this, but last I've heard it was delayed until XRandR
> 1.4.
>
> Dual-head with a single video card driving two monitors ought to work
> fine, especially if you use the open-source drivers.
>

Ah, good thing to know that although the approach I was taking is hopeless,
there is another approach that has possibilities.

-- 
Drew Einhorn




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