Forgive me, I've seen posts relating to this recently but my search mojo is broken today.
I have the above two machines, plus a shared dock with PCI slot. Bought a new monitor and wanted to use DVI for clarity; I want to use the monitor as my primary display when the laptop is docked. DVI out on the Dock is not supported for X-series, so popped in a PCI video card. All worked in XP of course, after a driver download, but no joy in Win 7.
Learnt very quickly about XPDM and WDDM, and that the two won't mix. The ATI Mobility is supported under Win 7 via Omega 6.x drivers, i.e. XPDM. My strategy was therefore to find the most powerful PCI card with DVI out that had XPDM so I could run both cards at 'downlevel' 6.x driver versions.
Also realised to my dismay that hardware profiles were consigned to history with Vista
Started swapping cards and drivers in and out; am now on an ATI Radeon 9250. Omega drivers installed in XP.
Had to put experimenting on hold due to major writing commitment, but will have time to tinker shortly. What I really need to know first is: has anyone else got this set-up working, or am I flogging a dead horse?
If it's workable, any suggestions for working around absence of hardware profiles for changing the primary display based on docking status?
Thanks




