Comment 107 for bug 312756
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| Eric Burgess (ericdb) wrote Re: support graphics card hot switch | #107 |
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0e1f616
(Get the code!)
My machine is the same as Dr_Funkenstein's, a Dell XPS 1340 with integrated 9400G and "discrete" 210m. I use the quotes because even when the 210m is running, it directs its output through the 9400, which has the only connection to the LCD panel. Apparently the "HybridBoost" sends some signal to activate the 210m which then runs its output through the 9400.
There are no relevant settings in the BIOS at all, and the 210m is entirely dormant in Linux. While hot-switching would be ideal, just being able to choose at boot- or X-start-time whether to activate the 210m would be a tremendous improvement. Dr_Funkenstein has posted his DSDT file; is there any other information on this particular configuration that could be of use? Nvidia, unfortunately, does not seem inclined to provide HybridBoost support in their Linux drivers.