I have a HP G6-2251ST(7420g+7670m). Im following the procedure below to make my 7670m work but performance seems to stay same. Here is what ive done;
xrandr --listproviders
Providers: number : 3
Provider 0: id: 0x7c cap: 0x9, Source Output, Sink Offload crtcs: 4 outputs: 3 associated providers: 2 name:radeon
Provider 1: id: 0x45 cap: 0x6, Sink Output, Source Offload crtcs: 6 outputs: 0 associated providers: 2 name:radeon
Provider 2: id: 0x45 cap: 0x6, Sink Output, Source Offload crtcs: 6 outputs: 0 associated providers: 2 name:radeon
xrandr --setprovideroffloadsink 1 0
DRI_PRIME=1 steam steam://rungameid/240