Hello,

I have Samsung NP530U4B laptop with two graphic cards -  Intel HD3000 series and AMD Radeon 7550M.

To switch between this card i tried to install driver from samsung site (through SW Update tool) and leshcat's driver UnifL, both on clean Windows 8. Both has the same problem - when i right-click on desktop and click "switchable graphic options" (the title maybe be a little different - i have russian version of catalyst), some catalyst process starts and then ends in 15 seconds. When i click "Application settings of switchable graphics" in CCC, it just shuts down.

Through the gpu-z i can see that while using some complex graphic apps (eg: games), only intel card is being used.

I tried: Catalyst 12.11 beta 11, Catalyst 12.10, UnifL 12.11 beta 11, UnifL 12.11 beta 6, "AMD PowerXpress 9.002.0.0000 WHQL" from samsung.

Read the big sticky in the LAPTOP forum.

Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200  ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit  ***Acer 5750 laptop

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