Multi Monitor Issue

[Gman]

I've got a PowerColor HD 7950 and my current setup is
Monitor 1 - 1900 x 1200 - Connected using Mini Display port
Monitor 2 - 1900 x 1080 - Connected using HDMI
Monitor 3 - 1200 x 1900 - connected using DVI

My issue is that the desktop / icons keep randomly changing.

for example my main display is Monitor 1 this has my desktop icons etc. If I power off this screen and switch to my TV (Monitor 2) then I shutdown the pc. If I then start it back up but with the TV (Monitor 2) not switch to the PC's hdmi and Monitor 1 on it jumps all my icons to my TV and often then decides to open all app windows on my tv.

I have to either then play restarting the PC a second time then it sorts things out.

I've got the latest drivers etc

Any ideas what could be the issue here ?

 

[GefGz]

Are you defining the primary/secondary monitors in CCC or through windows?

 

[Gman]

tried in both, seems to end up with the same issue

 

[Gman]

i'm thinking its something to do with the min display port.

i've just tried altering the connections so there now
Monitor 1 - DVI
Monitor 2 (tv) - hdmi
Monitor 3 - mini display port to DVI

When I try this it won't let me have two dvi connection active

 

[GefGz]

It seems like something to do with a priority system of the outputs, for instance I used to get similar issues when I used Displayport for my primary monitor and DVI-D for my secondary. Changing my main monitor to HDMI and leaving the secondary with DVI sorted it.

When you boot up what screen does the pc POST/Bios show up on? and does this change?

And is that Mini displayport adapter an active one? Pretty sure you need that to go to DVI(for a third monitor)

 

[Gman]

The post screen appears on both the active screens at the moment.

I think your right about it needing to be an active cable/adapter. I'm using a none active cable (I think) which is why the minidisplay to dvi won't work without disabling the other dvi.

Going to pick up an Active cable and see what happens

 

[Gman]

right I've removed the display port connection one for now so the setup is
Monitor 1 - dvi
Monitor 2 - hdmi

Using this setup the desktops are stable, before Monitor 1 was Mini display to minidisplay and turning off this monitor caused the desktop to jump to Monitor 2. Now they both stay as they are.

Think I got away with it on my old graphics card as one has vga