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Re: Dell XPS L502X GeForce GT 540M

 

Hi,
Sorry, I used Joss script to switch the states (thanks fot that!). The test.sh didn't work for me too.

Btw, vga_switcheroo works on my hardware! I can switch the cards and their outputs. But it has a strange behaviour: it works only after the Kernel version is switched! How can that be? I tried different Ubuntu Kernels and some mainline Kernels. The first time I boot a new Kernel the /sys/kernel/debug/vgaswitcheroo/switch file is there, after the first reboot it simply disappears! Then if I switch to an other Kernel using Grub it appears again, but only until I reboot with the same Kernel. How can that be explained?

Sevo



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