*I don't think this is the problem but I'm saying it anyways since it's a laptop.
Does the frame rate also seem very slow/laggy?
Try forcing the 8970M to work (maybe it's using the HD4600.. but I don't see any mention of it in the DXDiag).
http://help.ea.com/en/article/setting-up-a-graphics-card-gaming-profile/
Catalyst's advanced settings may have something called "Switchable Graphics" tab. Add PvZGW2.exe as High Performance.
*
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If that's not it. Make sure have you all overlay programs closed in the background (Fraps, RiviaTuner, Overwolf, raptr, etc).
Try reseting the 3D Settings Global in Catalyst.
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If it's still not working try clean installing the GPU drivers after uninstalling them.
https://community.amd.com/thread/180667
The steps:
-Uninstall all Catalyst from CP
-Run Display Driver Uninstaller and let it restart you to Safe Mode
-Run DDU in safe mode, clean amd drivers, restart
-Install latest package from AMD
If you get a BSOD when restarting from safe mode. Go back to safe mode. Go to device manager and remove all Display Adapters, now restart normal.
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Problem signature:
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P1: GW2.Main_Win64_Retail.exe
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P2: 1.0.3.0
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P3: 56f0b492
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P4: atidxx64.dll_unloaded
Definitly AMD drivers is where I'd be looking.
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Problem signature:
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P1: DSubOSD.exe
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P2: 1.0.0.6
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P3: 5285e9d4
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P4: DSubOSD.exe
Not really sure what that is but it sounds like it might me some sort of Overlay program. A quick google suggested it might be On Screen Display for some alienwares.. not sure if this cause problems with Origin's Overlay.