Sony Vaio VCPSE
This has Intel and Radeon 6630. It is probably "mux-less" setup so can't switch to Radeon, only power it off.
sudo dmidecode -s system-product-name && sudo dmidecode -s system-version:
VPCSE1E1E C609L3RC
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc NI Whistler [AMD Radeon HD 6600M Series] [1002:6741] (rev ff) (prog-if ff)
Sony Vaio VCPSE
This has Intel and Radeon 6630. It is probably "mux-less" setup so can't switch to Radeon, only power it off.
sudo dmidecode -s system-product-name && sudo dmidecode -s system-version:
VPCSE1E1E
C609L3RC
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc NI Whistler [AMD Radeon HD 6600M Series] [1002:6741] (rev ff) (prog-if ff)