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Questions tagged [vgaswitcheroo]

Questions related to switching GPUs using vgaswitcheroo on hybrid graphics systems.

vgaswitcheroo is actually a hack for manually toggling the power of graphics cards, or even switching between graphics cards on systems. It accepts commands and gives status information through the special "file" /sys/kernel/debug/vgaswitcheroo/switch.

How to use it is described at https://help.ubuntu.com/community/HybridGraphics#Using_vga_switcheroo

68 questions
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How to permanently switch off discrete graphic card?

I got a integrated GD, which is Intel, and another discrete GD, AMD Radeon 6490 HD I am using ubuntu 11.10 1st, when I boot into Windows, my GD is indeed AMD Radeon 6490 HD, but when I boot into Ubuntu, it shows that I have AMD Radeon 6470…
user33831
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HybridGraphics vga_switcheroo switch to intel at boot

How can I do that? I have followed this https://help.ubuntu.com/community/HybridGraphics but it didn't work I'm getting the error at boot that the /sys/kernel/debug/vgaswitcheroo/switch don't exist , so the problem seems to be that the…
Jan
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Do I need to use open source drive of ati for Switcheroo?

In ubuntu11.10 , I still need to use open source drive of ATI when using Switcheroo ? The 'addon driver' in system menu is about open drive or propriety driver ? Thanks
waterloo2005
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About output of vga_switcher

When IGD and DIS both exist in my pc,and I want to disable DIS,so I create a service to switch on and off the DIS.It works.Finally,I decide to add the service command into /etc/rc.local so that DIS will be powered off automatically.Unfortunately,it…
zhangjie
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