I have a Dell 5110 laptop that has hybrid graphics. I have tried using vgaswitcheroo to some limited success, but I have still not been able to select my discrete ATI 6470 card. I use the following commands with the following outputs:
root@mikelaptop:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:DIS: :Off:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
root@mikelaptop:~# echo ON > /sys/kernel/debug/vgaswitcheroo/switch
root@mikelaptop:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:DIS: :Pwr:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
root@mikelaptop:~# echo DIS > /sys/kernel/debug/vgaswitcheroo/switch
root@mikelaptop:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:DIS: :Pwr:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
root@mikelaptop:~# echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
root@mikelaptop:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:DIS: :Pwr:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
root@mikelaptop:~# echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
root@mikelaptop:~# cat /sys/kernel/debug/vgaswitcheroo/switch
0:DIS: :Off:0000:01:00.0
1:IGD:+:Pwr:0000:00:02.0
As you can see here, vgaswitcheroo turns power on and off to my discrete card, but for some reason will not select my discrete card. When I tried using echo DDIS > /sys/kernel/debug/vgaswitcheroo/switch, then logged out, my system froze. Can anyone help me?
Thanks!