dual Radeon graphics cards and Xrandr 1.4

[J. Hart]

On 10/19/15 03:01, Michel Dänzer wrote:
> Beware that if there's no other clients running when you run xrandr, 
> the X server resets itself after xrandr disconnects from it. The Xorg 
> log you attached shows several such resets. Have you tried your tests 
> with at least a window manager or some other long-running client?

I had not been aware of the server resets.   I should have thought of 
this......:-)

I ran the tests again with a long running client ( in this case, 
xconsole) as you suggested.
I now have a very nicely running 4 head setup under Randr......:-)

I did the test for both  of the following:
xf86-video-ati 7.5.0
current git version

Both work very well for me.

I do notice some very small graphics corruption which occurs in the 
background of the X pointer, and which varies somewhat as the pointer 
moves about.  This is a minor matter, but I thought I ought to mention 
it.  It occurred in both tests (7.5.0 and git), but does not occur when 
I run X with Xinerama.

Many thanks for your very kind and prompt assistance.  I greatly 
appreciate this....:-)

J. Hart