I have same problem. I have a notebook Dell Vostro 3500 with a Intel HD i915 (internal GPU) and Nvidia Geforce 310m (dicrete GPU).
Below are the informations, and the file ".dsl"
~$ sudo dmidecode -s system-product-name && sudo dmidecode -s system-version Vostro 3500 A10
~$ lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller]) 01:00.0 VGA compatible controller [0300]: nVidia Corporation GT218 [GeForce 310M] [10de:0a75] (rev a2) (prog-if 00 [VGA controller])
I have same problem. I have a notebook Dell Vostro 3500 with a Intel HD i915 (internal GPU) and Nvidia Geforce 310m (dicrete GPU).
Below are the informations, and the file ".dsl"
~$ sudo dmidecode -s system-product-name && sudo dmidecode -s system-version
Vostro 3500
A10
~$ lspci -vnnn | perl -lne 'print if /^\d+\: .+(\[\S+ \:\S+\] )/' | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: nVidia Corporation GT218 [GeForce 310M] [10de:0a75] (rev a2) (prog-if 00 [VGA controller])